200803588 九、發明說明： 【發明所屬之技術領域】 尤其係·關於一種媒體 本發明係關於一種媒體訊號處理方法， 訊號之處理方法及其裝置。 【先前技術】 處理媒體訊號時，編碼器诵當厣絵矣、^ 通吊00夕通迢訊號為單音或立體 =狀降混訊號，而並非壓縮各多通道訊號。然後，編碼器傳 达！過壓紅降混訊號及纠:纽或麵 它們儲存於儲存媒介中。解㈣#心 或者將 之降混訊號及空間 貝沭以重新建立初始的多通道。 之蠢 ^ ^ 假。又刚面的‘N，為編碼器傳送之通道 之數目，M，為經過壓縮之降 s 碼器重新建立之通、f種日 目，以及後_‘N，為解 、t0 < 、目’編碼裔及解碼器基本上提供5小5 if 射至辦目少於編碼騎支援之通道、_，舰道被映 对至編碼辦趟之通道結 入至編碼器之通、首小_ ” 編碼。尤其地，如果輸 哭可壓 w、、，、碼續趣之通道，其巾通道等於編碼 道數目與輪人編碼器之通道數目之差值，則假設通 3固虛擬值，根據此假設執 生解喝器重新建立包含虚擬值之弓二例中，編碼"產 <遑所而之空間資訊，然後傳送 200803588 產生之空間資訊至解碼器。 【發明内容】 本發明之目的在於提供一種媒體訊號處理方法及裝置，如果 _編碼㈣目傳送之通道少於基本可壓縮之通道，則重新建立通道 所需之部份空間資訊不被傳送。 本發明之另一目的在於提供一種媒體訊號處理方法及裝置， φ用於產生^又疋虛擬值之通道之解碼可被忽略。 本發财’如果編碼裝置試_送之通道少於基本可屡縮之 通道，從基本可虔縮通道之數目中排除待傳送之通道數目，所得 到之通道健設定為虛擬值。並且，觸建立等於虛擬值之通道 所需之空間資訊不被傳送。 解碼 本發明中，解碼裝置從傳送之媒體訊號所產生之通道中偵測 哪個通道被奴虛錄，且忽略祕產生被奴虛擬值之通道之 如前所述，依照本發明，當編碼裝置傳送之通道少於基本可 壓縮之通道時，包含有效值之通道_之空_訊被產生且被傳 送。因此，可防止不必要的位元傳送。 依照本發明，解碼裝置從傳送之髓訊號職生之通道 測觸通财效，織健完朗於有效通道產生之解碼。因此，、 可減j/黑效通道產生所用之解碼作業數量。 為了獲得本發明的這些目的采甘s 一 0和其他優點，現對本發明作具體 200803588 化和概括性的描述，本發明之一種音頻訊號之解碼方法包含··從 .待產生的多通道巾制包含有效值之通道；以及由降混訊號及空 間資訊訊號產生包含有效值之债測通道。 • 為了進一步獲得本發明的這些目的和其他優點，本發明之一 、 種音頻減之解碼方法包含：從触之位元流巾獲得降混自第一 多通道音頻訊號之降混訊號及空間資訊；由空間資訊中產生修正 馨 工間資訊，以及使用修正空間資訊產生第二多通道。 為了進一步獲得本發明的這些目的和其他優點，本發明之一 種曰頻δίΙ號之編碼方法包含：接收數目小於n之通道；設定等於 Ν與接收之通道數目間差值之通道值為虛擬值；以及降混Ν個通 道’其中包含具有虛擬值之通道。 為了進一步獲得本發明的這些目的和其他優點，本發明之一 種曰頻乳號之解碼裝置包含：擷取單元，擷取降混訊號及空間資 • 訊；以及通道產生單元，從空間資訊訊號產生之多通道中偵測包 含有效值之通道，使用降混訊號及空間資訊訊號產生包含有效值 之偵測通道。 為了進一步獲得本發明的這些目的和其他優點，本發明之一 種音頻訊號之編碼裝置包含··通道值設定單元，接收數目少於Ν 之通道；通道設定單元，設定等於Ν與接收通道數目間差值之通 道值為虛擬值；空間資訊擷取單元，產生包含有效通道指示資訊 之空間資訊訊號，其中有效通道指示資訊用於指示Ν個通道中哪 7 200803588 個對應接fctii ;峨降混單元，卩N麵道，其巾包含具有 虛擬值之通道。 【實施方式】 以下’將結合關之實施娜本發_熟實施方式作詳細 說明。本發明側於—麵體訊號解碼枝及縣置。此實施例 中’媒體訊號包含音頻訊號或視頻訊號。 第1圖」所7F係為本發明實施例之透過編贼置傳送至解 碼裝置之媒體訊號之示意圖。 明芩考「第1圖」，媒體訊號包含降混訊號1〇1以及空間資訊 訊號103。降混訊號備係為降混多通道媒體訊號所產生之訊號。 降混訊號101可透過編碼裝置中包含的降混單元（圖中未表示） 而產生或者以人工方式產生。媒體訊號以基本流（elementary ^•肇；ES)形式存在，基本流中包含排列框。降混訊號ι〇ι以及 空間育訊訊號1〇3可各自时_基本流形式被傳送至解碼裝 置。或者’如「第〗圖」所示，降混訊號1〇1以及空間資訊訊號 103可被組合為—個基本流形式而被傳送至解碼裝置。 田夕通逗媒體訊號被降混時，空間資訊訊號1〇3被擷取。解 碼裝置使用空間資訊訊號以由壓縮的降混訊號1〇1重新建立 初始多通道媒體訊號。 編碼裝置透過降混所有輸入其中的多通道訊號能夠產生空間 貝釩矾旎103。然而，如果數目小於編碼裝置支援的通道數目之通 200803588 則假設從編踢裝置支援的通道數目中排除輸200803588 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a method for processing a media signal, a method for processing a signal, and an apparatus therefor. [Prior Art] When processing a media signal, the encoder 诵 厣絵矣 ^ 00 00 00 00 00 00 00 00 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单 单Then the encoder is passed! Over-voltage red-down mixed signal and correction: New or face They are stored in the storage medium. Solution (4) #心 or downmix the signal and space to re-establish the initial multi-channel. Stupid ^ ^ False. The just-faced 'N, the number of channels transmitted by the encoder, M, is the re-established pass of the compressed down-schip, the f-type U., and the later _'N, the solution, t0 < 'The coded descent and decoder basically provide 5 small 5 if the shot is less than the code riding support channel, _, the channel is mapped to the code to do the channel to the encoder, the first small _ ” In particular, if the crying can press the w,,, and code channels, the towel channel is equal to the difference between the number of code channels and the number of channels of the wheelman encoder, and then assume a virtual value of 3, according to this Suppose that the implementation of the deconstructor re-establishes the space containing the virtual value, encoding the spatial information of the "production", and then transmitting the spatial information generated by the 200303588 to the decoder. [The present invention] Provided is a media signal processing method and apparatus. If the channel transmitted by the _code (four) is less than the channel that is basically compressible, part of the spatial information required for re-establishing the channel is not transmitted. Another object of the present invention is to provide a medium. Signal processor And the device, φ is used to generate the channel of the virtual value and the decoding of the virtual value can be ignored. If the encoding device tries to send less than the basic retractable channel, from the number of basic collapsible channels Excluding the number of channels to be transmitted, the obtained channel is set to a virtual value, and the spatial information required to establish a channel equal to the virtual value is not transmitted. Decoding In the present invention, the decoding device generates from the transmitted media signal. As described above, in the channel, which channel is detected by the slave, and the channel for generating the virtual value of the slave is ignored. According to the present invention, when the channel transmitted by the encoding device is less than the substantially compressible channel, the valid value is included. The channel_space_ is generated and transmitted. Therefore, unnecessary bit transmission can be prevented. According to the present invention, the decoding device measures the touch-through effect from the channel of the transmitted signal, and the texture is effective. The decoding produced by the channel. Therefore, the number of decoding operations used can be reduced by the j/black channel. In order to obtain the objectives of the present invention and other advantages, the present invention is now Specifically, a method for decoding an audio signal according to the present invention includes: • a channel containing a valid value from a multi-channel towel to be generated; and generating a valid value by the downmix signal and the spatial information signal. Debt measurement channel. In order to further obtain these and other advantages of the present invention, an audio subtraction decoding method of the present invention includes: obtaining a downmix from the first bit of the audio signal from the touch bit stream towel Signal and spatial information; generating modified sputum information from spatial information and generating second multi-channel using corrected spatial information. To further obtain these and other advantages of the present invention, a coding method for 曰 δ Ι Ι of the present invention The method includes: receiving a channel whose number is less than n; setting a channel value equal to a difference between Ν and the number of channels received as a virtual value; and downmixing a channel containing a channel having a virtual value. In order to further obtain the above objects and other advantages of the present invention, a decoding device of the present invention includes: a capturing unit for extracting a downmix signal and a spatial resource; and a channel generating unit for generating a spatial information signal The channel containing the RMS value is detected in the multi-channel, and the detection channel including the RMS value is generated by using the downmix signal and the spatial information signal. In order to further obtain the above objects and other advantages of the present invention, an audio signal encoding apparatus of the present invention includes a channel value setting unit that receives a channel having a number less than Ν; and a channel setting unit that is set equal to a difference between the number of Ν and the number of receiving channels. The channel value of the value is a virtual value; the spatial information capturing unit generates a spatial information signal including the effective channel indication information, wherein the valid channel indication information is used to indicate which of the 7 channels of the 200803588 are connected to the fctii;卩N-faced, the towel contains a channel with a virtual value. [Embodiment] The following description will be made in detail with reference to the implementation of the implementation of the Naben hair. The invention is side-to-face signal decoding branch and county. In this embodiment, the media signal contains an audio signal or a video signal. Figure 1F is a schematic diagram of a media signal transmitted to a decoding device by a thief in the embodiment of the present invention. In the "Picture 1", the media signal contains the downmix signal 1〇1 and the spatial information signal 103. The downmix signal is prepared to reduce the signal generated by the multi-channel media signal. The downmix signal 101 can be generated by a downmix unit (not shown) included in the encoding device or manually generated. The media signal exists in the form of elementary stream (elementary ^•肇; ES), which contains an arrangement box. The downmix signal ι〇ι and the space feed signal 1〇3 can be transmitted to the decoding device in the _ elementary stream form. Alternatively, as shown in the "Graph", the downmix signal 1〇1 and the spatial information signal 103 can be combined into one elementary stream form and transmitted to the decoding device. When Tian Xitong teased that the media signal was downmixed, the space information signal 1〇3 was captured. The decoding device uses the spatial information signal to re-establish the initial multi-channel media signal from the compressed downmix signal 1〇1. The encoding device can generate space by downmixing all of the multi-channel signals input thereto. However, if the number is less than the number of channels supported by the encoding device, 200803588, it is assumed that the number of channels supported by the knitting device is excluded.
擬值之通道之空間資訊訊號103被產生， ，也可能不會被傳送至解 道被輸入編碼裝置， 入通道的數目，犋 碼裝置。此外，編碼裝置可使概定值或者極㈣解方式表示 包含虛擬值之通道所用之空間資訊。 • ㈣讀、有效通道指示資訊、触結髓鱗可被包含於 空間資訊訊號103中。空間參數係為指示多通道訊號之間關係之 資訊。空間參數包含通道等級差值（channel ^避⑽⑽； CLD) ’祕指示媒體職之_㈣差值，通道附目關係數 (mterchannd corrdations ; ICC) ’指示媒體訊號之間的相關性或 相似性’通暹預測係數（channelpredicti〇nc〇effici_; cpc),指 示藉由不同訊號用於預測媒體訊號之係數。 _ 當輸入通道之數目小於編碼裝置之通道組態時，空間資訊訊 唬103所包含之資訊用於指示輸入編碼裝置之通道是否為包含有 效值之通道或者包含虛擬值之通道，其中這種通道被產生以支援 編碼裝置之基本組態。下文中，用於指示輪入編碼裝置之通道是 否不包含虛擬值而是包含有效值之資訊被稱為有效通道指示資 訊。有效通道指示資訊可包含於空間資訊訊號1〇3之標頭1〇5或 空間框107中。空間資訊係為依照確定的樹狀結構擷取於降混通 道訊號期間之資訊。此實施例中，確定的樹狀結構係為解碼裝置 9 200803588 與編碼裝置間約定之樹狀結構。空間資訊訊號103可包含樹狀結 構資訊。樹狀結構資訊係為用於表示樹狀結構之類型之資訊。依 照樹狀結構之類型，可改變多通道之數目、各通道降混序列等。 透過多工經過編碼之降混訊號101及空間資訊訊號103，編碼 裝置產生位元流類型之媒體訊號，然後傳送產生之訊號至解碼裝 置。 ^衣 「第2圖」係為本發明實施例之包含編碼及解碼裝置之媒體 裝置之方塊圖。 請麥考「第2圖」，媒體裝置包含編碼裝置及解碼裝置。編碼 裝置包含降混單元202、空間資訊單元203、1条混訊號編石馬單 元205、空間資訊編碼單元207以及多工單元209。解碼裝置包含 解多工單元211、降混訊號解碼單元213、空間資訊解碼單元215 以及通道產生單元217。 編碼裝置之降混單元202透過降混多通道媒體訊號2〇1產生 兩個降混訊號其中之一，然後發送產生之訊號至降混訊號編碼單 元205。降虎編碼早元205透過編碼此降混訊號以產生經過編 碼之降混訊號，然後發送經過編碼的降混訊號至多工單元2〇9。 透過從多通道媒體訊號201中擷取空間參數，空間資訊擷取 單元203產生空間資訊訊號103。 編瑪裝置可包含通道值a又疋早元（圖中未表示），位於降混單 元202前面。從編碼裝置支援的通道數目中排除輸入通道的數目 10 200803588 而產生一個數目，通道值設定單元為等於此數目之通道值設定虛 擬值。因為解碼裝置不需要重新建立被設定虛擬值之通道，所以 編碼裝置無須為虛擬值設定通道產生空間資訊。或者，解碼裝置 以簡單方式表示虛擬值設定通道之空間資訊為既定值、極值等。 二間資訊擷取單元203為包含有效值之通道產生空間資訊訊 號1的，然後發送此訊號至空間資訊編碼單元207。此實施例中， 如前所述，空間資訊訊號1〇3可包含指示符、空間參數、通道組 態識別符、修正空間資訊訊號類型等。 透過編碼空間資訊訊號1〇3，空間資訊編碼單元2〇7產生經過 、扁碼之空間貧訊訊號1〇3，然後發送產生之訊號至多工單元。 透過多工接收自降混訊號編碼單元2〇5之經過編碼之降混訊 號及接收自空間資訊編碼單元2〇7之經過編碼之空間資訊訊號 1〇3 ’多工單元209產生位元流類型之媒體訊號210，然後發送產 生之訊號至解碼裝置。 同日守，解碼裝置接收編碼裝置傳送之位元流類型之媒體訊號 21〇或者擷取先前儲存之媒體訊號21〇。 。解碼裝置中包含的解多工單元211解析位元流類型之媒體訊 號21〇為經過編碼之降混訊號及經過編碼之空間資訊訊號，發送 I過編碼之降混訊號至降混訊號解碼單元213，且發送經過編碼之 工間資訊訊號至空間資訊解碼單元215。 降混訊號解碼單元213產生經過解碼之降混訊號，然後發送 11 200803588 產生H過解碼之降混訊號至通道產生單元217。空間資訊解石馬單The spatial information signal 103 of the channel of the pseudo value is generated, and may not be transmitted to the number of channels input, the number of channels, and the code device. In addition, the encoding means may use the estimated value or the polar (four) solution to represent the spatial information used by the channel containing the virtual value. • (4) Reading, valid channel indication information, and contact stenosis can be included in the spatial information signal 103. The spatial parameter is information indicating the relationship between multi-channel signals. The spatial parameter contains the channel level difference (channel ^ evasion (10) (10); CLD) 'secret indication media position _ (four) difference, channel attachment relationship number (mterchannd corrdations; ICC) 'indicating the correlation or similarity between media signals' The channel prediction coefficient (channelpredicti〇nc〇effici_; cpc) indicates the coefficient used to predict the media signal by different signals. _ When the number of input channels is smaller than the channel configuration of the encoding device, the information contained in the spatial information signal 103 is used to indicate whether the channel input to the encoding device is a channel containing a valid value or a channel containing a virtual value, wherein the channel It is generated to support the basic configuration of the encoding device. Hereinafter, information for indicating whether the channel that is wheeled into the encoding device does not contain a dummy value but contains a valid value is referred to as a valid channel indication message. The valid channel indication information may be included in the header 1〇5 or the space frame 107 of the spatial information signal 1〇3. The spatial information is information obtained during the downmix channel signal according to the determined tree structure. In this embodiment, the determined tree structure is a tree structure agreed between the decoding device 9 200803588 and the encoding device. The spatial information signal 103 can contain tree structure information. The tree structure information is information for indicating the type of tree structure. Depending on the type of tree structure, the number of multiple channels, the downmix sequence of each channel, etc. can be changed. Through the multiplexed encoded downmix signal 101 and the spatial information signal 103, the encoding device generates a media signal of the bit stream type and then transmits the generated signal to the decoding device. Fig. 2 is a block diagram of a media device including an encoding and decoding apparatus according to an embodiment of the present invention. Please refer to "Figure 2", the media device includes an encoding device and a decoding device. The encoding device includes a downmixing unit 202, a spatial information unit 203, a mixed signal encoder unit 205, a spatial information encoding unit 207, and a multiplex unit 209. The decoding device includes a demultiplexing unit 211, a downmix signal decoding unit 213, a spatial information decoding unit 215, and a channel generating unit 217. The downmixing unit 202 of the encoding device generates one of the two downmix signals through the downmix multi-channel media signal 2〇1, and then transmits the generated signal to the downmix signal encoding unit 205. The descending tiger code early 205 encodes the downmix signal to generate a coded downmix signal, and then sends the encoded downmix signal to the multiplex unit 2〇9. The spatial information capturing unit 203 generates the spatial information signal 103 by extracting the spatial parameters from the multi-channel media signal 201. The marshalling device may include a channel value a and an early element (not shown) located in front of the downmix unit 202. Excluding the number of input channels from the number of channels supported by the encoding device 10 200803588 A number is generated, and the channel value setting unit sets the virtual value for the channel value equal to this number. Since the decoding device does not need to re-establish the channel for setting the virtual value, the encoding device does not need to generate spatial information for the virtual value setting channel. Alternatively, the decoding device simply indicates that the spatial information of the virtual value setting channel is a predetermined value, an extreme value, or the like. The two information capturing unit 203 generates the spatial information signal 1 for the channel including the valid value, and then transmits the signal to the spatial information encoding unit 207. In this embodiment, as described above, the spatial information signal 1〇3 may include an indicator, a spatial parameter, a channel configuration identifier, a modified spatial information signal type, and the like. Through the coded space information signal 1〇3, the spatial information coding unit 2〇7 generates a spatially poor spatial signal 1〇3, and then transmits the generated signal to the multiplex unit. The encoded downmix signal received by the multiplexer receiving the downmix signal encoding unit 2〇5 and the encoded spatial information signal received from the spatial information encoding unit 2〇7 多3 'the multiplex unit 209 generates the bit stream type The media signal 210 then sends the generated signal to the decoding device. On the same day, the decoding device receives the media signal of the bit stream type transmitted by the encoding device 21 or retrieves the previously stored media signal 21〇. . The demultiplexing unit 211 included in the decoding device parses the media signal 21 of the bit stream type into the encoded downmix signal and the encoded spatial information signal, and sends the I coded downmix signal to the downmix signal decoding unit 213. And transmitting the encoded work information signal to the spatial information decoding unit 215. The downmix signal decoding unit 213 generates the decoded downmix signal, and then transmits 11 200803588 to generate the H over decoded downmix signal to the channel generating unit 217. Space information
元215解碼此郎資訊訊號，然後發送經過解碼之空間資訊訊麥 至通道產生單元217。 U 碼裝置。 、、解瑪單妨包含修正空間資訊訊號產生單元（圖中未表示）。 透過修正空間:纽峨.紅空間資訊訊號產生單元產生—個 修正空間資訊訊號。修正的空間f訊訊號表示透過修正空間資^ 訊號所新產生的空間資訊訊號。修正空間資訊訊號可透過包含部 份空間^訊訊號或者組合雜資訊訊號而產生。修正空間資訊訊 號產生單7G可使職狀結構資訊、輸出通道資訊等產生修正空間. 貝Λ减輪出通逞貝訊係為揚聲器互連於解碼裝置所用之資 訊，並且可包含輸出通道之數目、各輸出通道之位置資訊等。S 出通這貧訊可由製造商事先輸人解碼裝置或者可由使用者輸入: 解碼裝置姻離結構資朗觸由編碼裝置降混之初 通這之數目，纽_騎鼓之猶讀目哺碼裝置判定降 混之初始通道之數目是否等於待產生之通道之數目。下文中，兔 碼裝置降混之初始科—多通道，解碼裝置待產生之通 逼被稱為第二多通道。如果編碼裝置降混之第—多通道之數目邀 3產通道之數目不同，或者_彼此的通道數目相 寻，在W有效值之通道數目方面如果第—多通道與第二多通首 不同，則解碼裝置可使歸正空間資訊訊號產生料以修正^ 12 200803588 資訊訊號。可使用第二多通道之有效值之相關係數產生修正空間 資訊訊號。 . 解碼裝置可透過組合上述之通道等級差值'通道間相關係 •數、通道預測係數、通道間相位差值（mterch丨phase difcence; IPD)等空間參數產生修正空間資訊訊號^尤其地，如果第一多通 迢之數目小於第二多通道之數目，透過組合傳送之空間參數，解 ⑩碼裝置可產生數目小於第-多通道之通道。例如，編铺置降混 5·1通道所產生之降混§罐可由解碼裝置升混為二通道訊號。解碼 裝置可使⑽送之部份空畔數產生修正空間參數。例如，降混 5·1通道所產生之降混訊號使用傳送之部份空間參數被升混，產生 之通迢數目少於5.1通這之數目。因此，解碼裝置可使用修正空間 資Λ訊號及降混訊號產生第二多通道，其中的數目與第一多通道 之數目不同。 φ 通道產生單元217使用經過解碼之降混訊號及經過解碼之空 間貧訊訊號重新建立多通道媒體訊號2丨9。解碼裝置可判定由傳送 之媒體訊號210產生的哪個多通道媒體訊號219係為有效通道以 及哪個通道包含虛擬值。下面結合「第3圖」、「第4圖」以及「第 • 5圖」詳細解釋解碼裝置使用空間資訊訊號103判定有效通道之方 -法。解碼裝置使用空間資訊訊號103從待產生之多通道媒體訊號 219中偵測有效通道，然後可僅僅完成以產生包含有效值之通道之 解碼。即，解碼裝置可避免完成用於產生包含無效值之通道之解 13 200803588 碼0 . + = ' 、扁喝衣置及解媽裝置所支援的通道數目小的通道，下 • ^田=種通逼之壓縮、傳送以及重新建立之方法，結合「第3 .®」解釋編石馬預處理及編碼方法，然後結合「第4圖」以及「第5 圖」解釋解碼方法。 ^ 編碼預處理 響 、、爲馬衣置及解碼裝置基本上可壓縮及重新建立之通道數 目為N ’輪入之多通道媒體訊號201可包含數目大於或者小於‘N， 如果媒體峨2〇1之通道數目小於N，對應於N與輸入 媒體訊號2G1之通道數目間差值之通道值應當被設定為虛擬值。 僅贴包含有效通道及通道包含虛擬值之N通道組態被建立，才 可完成編碼及解碼。此實施例中，對應於N與輸入媒體訊號201 之通道數目間差值之通道值可被設定為Q。 • 以下解釋編碼減财法。「第3 ®」係為本發明實施例之降 混單元202之方塊圖。 請參考「第3圖」，編碼裝置之降混單元2〇2包含第一、第二、 、 第三、第㈣及第五降混單元。圖式中’編碼裝置包含51通道結 構。5.1通這包含中央前通道c、左前通道以、右前通道处、左 環繞通道LS、右環繞通道RS減低音揚聲器通道啦（低頻增 強）。如果編碼裝置包含通道結構，通道少於51通道之媒體 讯唬應該於編碼之前被映射至5.；[通道結構。然後，使用例如 14 200803588 5-lo、5-2-5等樹狀結構編碼媒體訊號。因為「第3圖」中應用至 編碼裝置之媒體訊號301包含兩個通道左前通道LF及右前通道 RF，所以應當假設未被躺之嶋通道例如巾央前顧c、低音 揚聲器通道LFE、左環繞通道Ls以及右環繞通道把包含虛擬^ 例如0。編碼裝置完成共計六個通道之編碼，其中包含具有虛擬值 之通道。 2. 編碼 降混單兀202由輸入多通道產生降混訊號。降混單元搬使 (one to two，οττ)或者二至三（加。^。也沈；τη) 盒以表現兩通道為-通道絲表現三通道為兩通道。-至二或二 至4為概念盒，供解碼裝置使崎混訊號及空間資訊重新建立 =多ί逼。尤其地，接收自媒體訊號編碼裝置之媒體訊號透過 ^夕211麵析為闕編碼之降混訊號1Q1及經過編碼之 二間貝Ifl號103 ’經過解碼然後被發送至通道產生單元加。通 =產生單元217使用經過解碼之降混訊號皿及經過解碼之空間 貝Ifl就1G3重新建立初始多通道時，使用—至二或者二至三盒 …们輪人减而輪出兩個訊號或者由兩個輸人訊號*輸出三個 為了對應於媒體訊號解碼裝置之通道產生單元an使用一 或者—至二盒之事實，媒體訊號編碼裝置之降混單元2〇2使 用一至一式古―石一 3 —二盒以降混輸入多通道訊號為一或兩個訊號。 中媒U#u編碼裝置使用的一至二或者二至三盒被稱為序 15 200803588 數降混單元，或者媒體訊號解碼裝置使用的一至二或者二至三盒 被稱為序數升混單元。當輸入通道通過降混單元2〇2時，空間資 訊擷取單疋203擷取用於指示輪入通道間關係之空間參數。為了 •便於解釋，「第3圖」中，通道等級差值CLD被舉例示為降混單 元所擷取之空間參數，這並非限制擷取之空間參數。 下面解釋編碼裝置為有效通道或者無效通道傳送空間參數值 之方法。 2·1空間資訊訊號之產生方法 2.11设定空間參數值為最大或最小值之方法 「第3圖」中’共計六個通道透過編碼預處理被輸入編碼裝 置，其中包含具有虛擬值之通道。輸入通道被應用至第三、第四 及第五降混單元。來自第四及第五降混單元之職進人第二降混 單7L ’來自第二及第三降混單元之訊號進人第_降混單元。因為 馨輸人第三及第五降混單元之通道係為包含Q值之虛擬通道，因此 第二及第五降混單元無須擷取用於指示虛擬通道之間關係之空間 參數。第四降混單元操取空間參數CLD4，指示左前通道以及右 、 前通道RF兩個通道之間的關係。第二降混單元擷取空間參數 CLD2，指示來自第四及第五降混單元之訊號之間的關係。第一降 •、混單元擷取空間參數CLD1，指示來自第二及第三降混單元之訊號 之間的關係。第一降混單元擷取之空間參數CLD1或者第二降混 早7L操取之空間參數CLr>2可為通道等級差值CLD範圍之内的最 16 200803588 大或最小值。尤其地，第二降混單元擷取之空間參數CLD2表示 第四降混單元之輸出訊號與第五降混單元之輸出訊號之間的能量 差值。第四降混單元降混之訊號包含有效值，而第五降混單元降 混之訊號包含〇值。因此，能量（或者等級）僅僅依賴於第四降 混單元之輸出訊號。假設通道等級差值CLD值的範圍處於最大 150與最小㈠150之間，參考第四降混單元之降混訊號，CLD2為The element 215 decodes the lang information signal and then transmits the decoded spatial information mic to the channel generating unit 217. U code device. The solution can contain a modified spatial information signal generation unit (not shown). Through the correction space: the New Zealand Red Space Information Signal Generation Unit generates a modified spatial information signal. The corrected space f signal indicates the spatial information signal newly generated by correcting the space signal. The modified spatial information signal can be generated by including a part of the space signal or a combination of information signals. Correcting the spatial information signal generation single 7G can generate the correction space for the job structure information, output channel information, etc. The information is used to connect the speaker to the information used by the decoding device, and can include the number of output channels. , location information of each output channel, etc. S. This poor news can be input by the manufacturer beforehand or can be input by the user: The decoding device is separated from the structure, and the number of the initial device is reduced by the coding device. It is determined whether the number of initial channels of downmix is equal to the number of channels to be generated. In the following, the initial section of the rabbit code device downmixing-multiple channel, the output of the decoding device to be generated is referred to as the second multi-channel. If the number of the first-multiple channels of the downmixing of the encoding device is different, or the number of channels of each other is found, if the number of channels of the rms value is different from the number of channels of the second multi-pass, Then, the decoding device can generate a corrected spatial information signal to correct the ^ 12 200803588 information signal. The correction space information signal can be generated using the correlation coefficient of the rms value of the second multi-channel. The decoding device can generate the corrected spatial information signal by combining the above-mentioned channel level difference 'channel-to-channel relationship number, channel prediction coefficient, channel-to-channel phase difference (IPD), etc., in particular, if The number of the first multi-pass is smaller than the number of the second multi-channel. By combining the spatial parameters of the transmission, the 10-yard device can generate a channel smaller than the first-multiple channel. For example, the downmix § tank produced by the downmixing 5.1 channel can be upmixed into a two-channel signal by the decoding device. The decoding device can generate a modified spatial parameter for the portion of the empty bank sent by (10). For example, the downmix signal generated by the downmix 5.1 channel is upmixed using the transmitted spatial parameters, resulting in a number of wanted messages less than 5.1. Therefore, the decoding device can generate the second multi-channel using the corrected spatial resource signal and the downmix signal, the number of which is different from the number of the first multi-channel. The φ channel generating unit 217 re-establishes the multi-channel media signal 2丨9 using the decoded downmix signal and the decoded spatial lean signal. The decoding device can determine which multi-channel media signal 219 generated by the transmitted media signal 210 is a valid channel and which channel contains a virtual value. The following describes in detail the method for determining the effective channel by the decoding device using the spatial information signal 103 in conjunction with "Fig. 3", "Fig. 4", and "Fig. 5". The decoding device uses the spatial information signal 103 to detect a valid channel from the multi-channel media signal 219 to be generated, and then only completes decoding to produce a channel containing the rms value. That is, the decoding apparatus can avoid completing the solution for generating the channel containing the invalid value 13 200803588 code 0. + = ', the channel of the channel supported by the squatting device and the solution device is small, and the lower channel The method of compressing, transmitting, and re-establishing, combined with "3rd.®" to explain the pre-processing and encoding methods, and then explaining the decoding method in conjunction with "4th" and "5th". ^ The coded pre-processing, the number of channels that can be compressed and re-established by the device and the decoding device is N'. The multi-channel media signal 201 can be included in the number greater than or less than 'N, if the media is 〇2〇1 The number of channels is less than N, and the channel value corresponding to the difference between the number of channels of N and the input media signal 2G1 should be set to a virtual value. Only the N-channel configuration with valid channels and the channel containing dummy values is created for encoding and decoding. In this embodiment, the channel value corresponding to the difference between the number of channels of N and the input media signal 201 can be set to Q. • The following explains the code subtraction method. "3" is a block diagram of the downmixing unit 202 of the embodiment of the present invention. Please refer to "Fig. 3". The downmixing unit 2〇2 of the encoding device includes first, second, third, fourth (fourth) and fifth downmixing units. The 'encoding device' in the figure contains a 51 channel structure. 5.1 pass This includes the central front channel c, the left front channel, the right front channel, the left surround channel LS, and the right surround channel RS subwoofer channel (low frequency boost). If the encoding device contains a channel structure, the media signal with less than 51 channels should be mapped to 5. before encoding; [Channel structure. Then, the media signal is encoded using a tree structure such as 14 200803588 5-lo, 5-2-5. Since the media signal 301 applied to the encoding device in "Fig. 3" includes two channels of the left front channel LF and the right front channel RF, it should be assumed that the channel that is not lying, such as the towel front c, the woofer channel LFE, the left surround The channel Ls and the right surround channel contain a virtual ^ such as 0. The encoding device performs a total of six channels of code containing channels with dummy values. 2. Coding The downmix unit 202 generates a downmix signal from the input multichannel. The downmixing unit moves (one to two, οττ) or two to three (plus. ^. sinks; τη) box to represent two channels - the channel filaments represent three channels for two channels. - To two or two to four is a concept box for the decoding device to re-establish the reverberation signal and spatial information = more. In particular, the media signal received from the media signal encoding device is decoded and then transmitted to the channel generating unit through the MIMO encoded downmix signal 1Q1 and the encoded FB Ifl number 103'. The pass=generating unit 217 uses the decoded downmixed signal dish and the decoded space Ifl to re-establish the initial multi-channel for 1G3, using - to two or two to three boxes... The two input signals* output three for the channel generating unit an corresponding to the media signal decoding device to use one or two to two boxes, and the downmixing unit 2〇2 of the media signal encoding device uses one to one type of ancient stone one 3 — Two boxes are used to downmix the input multi-channel signal into one or two signals. One to two or two to three boxes used by the medium U#u encoding device are referred to as the sequence 15 200803588 number downmixing unit, or one to two or two to three boxes used by the media signal decoding device are referred to as ordinal upmixing units. When the input channel passes through the downmixing unit 2〇2, the spatial resource acquisition unit 203 retrieves the spatial parameters used to indicate the relationship between the wheeled channels. For ease of explanation, in the "Fig. 3", the channel level difference CLD is exemplified as the spatial parameter taken by the downmix unit, which is not a limitation of the spatial parameters of the extraction. The method of transmitting the spatial parameter values for the valid channel or the invalid channel by the encoding device is explained below. 2.11 Method of generating spatial information signal 2.11 Method of setting the spatial parameter value to the maximum or minimum value In the "Fig. 3", a total of six channels are input into the encoding device through the coding preprocessing, which includes a channel having a virtual value. Input channels are applied to the third, fourth and fifth downmixing units. The second and fifth downmixing units from the fourth and fifth downmixing units enter the second downmix unit 7L's signals from the second and third downmixing units into the first downmix unit. Because the channel of the third and fifth downmixing units is a virtual channel containing Q values, the second and fifth downmixing units do not need to take spatial parameters for indicating the relationship between the virtual channels. The fourth downmixing unit operates the spatial parameter CLD4, indicating the relationship between the left front channel and the right and front channel RF channels. The second downmixing unit takes the spatial parameter CLD2 to indicate the relationship between the signals from the fourth and fifth downmixing units. The first drop, the blending unit takes the spatial parameter CLD1, indicating the relationship between the signals from the second and third downmixing units. The spatial parameter CLD1 or the second downmix 7L operation spatial parameter CLr>2 of the first downmixing unit may be the maximum or minimum of 200803588 within the channel level difference CLD range. In particular, the spatial parameter CLD2 captured by the second downmixing unit represents the energy difference between the output signal of the fourth downmixing unit and the output signal of the fifth downmixing unit. The signal of the fourth downmixing unit downmixing includes a valid value, and the signal of the fifth downmixing unit downmixing includes a threshold value. Therefore, the energy (or level) depends only on the output signal of the fourth downmixing unit. Assume that the channel level difference CLD value ranges between a maximum of 150 and a minimum (one) 150, referring to the downmix signal of the fourth downmixing unit, CLD2 is
最大值150。同樣，參考第二降混單元之降混訊號，CLIM為15〇。 當降混單元202降混多通道時，空間資訊擷取單元2〇3擷取空間 麥數’然後使用擷取之空間參數產生空間資訊訊號1〇3。編碼裝置 可傳达所有擷取之空間參數CLD1、CLD2、CLD3、CLD4以及 CLD5之值至解碼裝置，方式為擷取之空間參數cLDi、①^、 CLD3、CLD4以及CLD5之值包含於空間資訊訊號1〇3中。此實 施例中，因為能量健面對兩個訊號其中之_，根據cldi或 CLm為150的事實，解碼裝置可從待產生之多通道媒體訊號⑽ 中偵測出哪個通道包含有效值。 編碼裝置傳送空間資訊訊號103至解碼装置，空間資訊訊號 ⑽包含之資則純示各岐單元餘之㈣參數蚊否等於 前一參數值，是否為_值、般既定值或者新讀取的值。此實 施1中，如前所述，編碼装置令資訊包含於空間資訊訊號1〇3中: 此資讯指示空間資訊值被表示為忘 *門失為 然後可傳送所有的 工間茶數值续碼裝置。此實施财，用於產生無效通道之不必 17 200803588 要之二間參數可被發送至廢棄位元。因此，編碼裝置可使用以下 方法最小化空間資訊訊號103之位元大小。 2.1.2没疋空間參數值為既定值之方法 編碼裴置可忽略不必要之空間參數之傳輸，方式係為傳送指 不工間參數值為預^既定值之資訊。此實施例中，編碼裝置可忽 略不必要之㈣參數值之傳輸，方式係為傳送—個空間參數值至 解碼裝置’此空間錄值齡於降混包含虛擬值之通道時且被表 不為既定值。例如，如果編碼裝置及解碼裝置設定例子，通道等 級是值CLD為最大值150時既定值為丨以及通道等級差值cld 為〇 b寺既定值為〇,編碼裝置可透秋下位元傳輸方式減少空間資 訊訊號103之位元大小，傳送指示CLD1及CLD2之值為既定值 且值為1之位元，並非傳送「第3圖」中CLm及CLm之值15〇 作為位元。 2·1·3有效通道指示資訊之傳送方法 編碼裝置可透過僅僅為有效通道傳送空間參數而減少空間資 訊訊號之位元大小。「第3圖」巾，編碼裝置可傳送如資訊訊號 103 ’其中僅僅包含產生自包含有效值之左前通道及右前通道 RF之空間參數CLD4，而CLD3及cLD5並非包含於空間資訊訊 號103中。此實施例中，被應用至第三升混單元（圖中未表示） 及第五升混單元（圖中未表示）之空間參數沒有在傳送自編石馬裝 置之空間資訊訊號103愤找到，戶斤以解碼裝置判定空間參數值 18 200803588 無意義。然後，解碼裝置可判定第三升混單元及第五升 出之通迢値為〇。因此，如果編碼裝置傳送其中僅僅包含背= 减之空間貧訊訊號期，從而使得解碼裝置 =曰 則編碼裝置產生有效通道指示資訊，透過 勺人^有效， 訊訊請巾，謝傳猶議^於空間資 有效通道細資_ _純H編 有效值而非包含虛擬值之通道之資訊。有效通道指示 方法中，依照各通道序列表示通道是 士 生 升混單元㈣細通道戰於各降混單=方法或者各 考慮。應用之通道少於可壓縮及可重新建立之㈣π方法可被 種情況，編碼裝置及解碼裝置可考廣 了準備這 裝置互相協定-種通道組態以用於輪入少=石=置及解碼 通道的叙，似編铺置將制秘之财衣置所支援 下面結合「約圖」解__列之各^^置。 通道之表示方法。5叫通道_之輸人通道為來 ^效 右前通道RP、中央麵道c、低音揚聲器通道咖^ 繞通運LS以及右職秘Rs。_左前通道l 工％ 為有效通道，所以表示為1。因為剩餘通道為虛擬:、/通道奸 為〇。因此，由上面可於通道序列中產生6位元k ’所以表示 訊，例如no_。铸喊狀單元是㈣紅道指示資 照第一、第二、第三、第四及第五降混單元之順二 19 200803588 表示使用降混單元作為i之例子或者不使崎混單元作為〇之例 子。「第3圖」中，因為第四降混單元健用於降混兩個左前通道 LF以及右W觀RF，透過5個位元使用各降混單元表示出現或 =缺失可產生有效通道指示資訊。編碼裝置可傳送通道組態識別 符作為有效通道指示資訊。下面結合表格丨解釋依照編碼及解媽 裝置間之事先通雜合之通道_之協定方法。The maximum is 150. Similarly, referring to the downmix signal of the second downmixing unit, the CLIM is 15〇. When the downmixing unit 202 downmixes the multi-channel, the spatial information capturing unit 2〇3 takes the space 麦' and then uses the extracted spatial parameters to generate the spatial information signal 1〇3. The encoding device can transmit the values of all the extracted spatial parameters CLD1, CLD2, CLD3, CLD4 and CLD5 to the decoding device in such a manner that the values of the spatial parameters cLDi, 1^, CLD3, CLD4 and CLD5 are included in the spatial information signal. 1〇3. In this embodiment, since the energy sensor faces the _ of the two signals, the decoding device can detect which channel contains the valid value from the multi-channel media signal (10) to be generated according to the fact that the cldi or CLm is 150. The encoding device transmits the spatial information signal 103 to the decoding device, and the information contained in the spatial information signal (10) is purely indicated by the remaining units. (4) The parameter mosquito is equal to the previous parameter value, whether it is a value of _, a predetermined value or a newly read value. . In the first embodiment, as described above, the encoding device causes the information to be included in the spatial information signal 1〇3: This information indicates that the spatial information value is expressed as a forgotten door loss and then all the work tea value continuations can be transmitted. Device. This implementation, which is used to generate invalid channels, does not have to be sent to the obsolete bit. Therefore, the encoding device can minimize the bit size of the spatial information signal 103 using the following method. 2.1.2 There is no method for the spatial parameter value to be the predetermined value. The coding device can ignore the transmission of unnecessary spatial parameters. The method is to transmit the information that the inter-working parameter value is the pre-established value. In this embodiment, the encoding device can ignore the transmission of the unnecessary (four) parameter value by transmitting the spatial parameter value to the decoding device. The spatial recording value is older than the downmix channel containing the virtual value and is represented as Established value. For example, if the encoding device and the decoding device are set as examples, the channel level is that the value CLD is the maximum value of 150, the predetermined value is 丨, and the channel level difference cld is 〇b temple is set to 〇, and the encoding device can be reduced in the lower bit transmission mode. The bit size of the spatial information signal 103 is transmitted as a bit indicating that the values of CLD1 and CLD2 are the predetermined values and the value is 1, and the value of CLm and CLm in the "Fig. 3" is not transmitted as a bit. 2·1·3 Effective channel indication information transmission method The coding device can reduce the bit size of the spatial information signal by transmitting spatial parameters only for the effective channel. In the "Fig. 3" towel, the encoding device can transmit, for example, the information signal 103', which only includes the spatial parameter CLD4 generated from the left front channel and the right front channel RF including the effective value, and the CLD3 and cLD5 are not included in the spatial information signal 103. In this embodiment, the spatial parameters applied to the third upmixing unit (not shown) and the fifth upmixing unit (not shown) are not found in the space information signal 103 transmitted from the stone horse device. It is meaningless to determine the spatial parameter value 18 200803588 by the decoding device. Then, the decoding means can determine that the third upmixing unit and the fifth rising pass are 〇. Therefore, if the encoding device transmits only the space-reducing signal period including the back=subtraction, so that the decoding device=曰, the encoding device generates the effective channel indication information, and the information is valid through the scooping person, and the information is requested. In the space resource effective channel _ _ pure H coded value instead of the channel containing the virtual value information. In the effective channel indication method, the channel is represented by the sequence of each channel, and the channel is the student's sub-mixing unit (4). The thin channel is played in each downmixing method = method or each consideration. The application channel is less than the compressible and re-establishable (four) π method can be used, the encoding device and the decoding device can be widely prepared to mutually agree with the device - the channel configuration for rounding less = stone = set and decode The channel's narration, like the arranging of the arbitrarily, will be combined with the "about" solution. The representation of the channel. 5 is called channel _ the input channel is to come to the effect of the right front channel RP, the central channel c, the woofer channel coffee ^ round the transport LS and the right secret Rs. The left front channel l% is a valid channel, so it is represented as 1. Because the remaining channels are virtual:, / channel is 〇. Therefore, from the above, a 6-bit k ’ can be generated in the channel sequence, so that no signal is displayed, for example, no_. The shouting unit is the (4) red road indicating the first, second, third, fourth and fifth downmixing units of the license. Shun 2 19 200803588 indicates that the downmixing unit is used as an example of i or the sacrificial unit is not used as a 〇 An example. In "Picture 3", because the fourth downmixing unit is used to downmix the two left front channels LF and the right W view RF, the use of each downmixing unit to indicate the presence or absence of 5 bits can generate valid channel indication information. . The encoding device can transmit the channel configuration identifier as a valid channel indication information. The following is a combination of the table 丨 to explain the agreed method of the channel according to the coding and decoding device.
RS) RS) RS) 、“:道組合之通 、、、且悲如表格1所示。編碼裝 似之通道_，依照I秘之數互相龄與表格1類 傳送此識聰鱗辦置。請「〜生^_朗符，然後 置之輪入柄之數目為2,透過輕 20 200803588 •觸裝置姻裝置可通知•裝置有效通道為左前通道LF及右 ..月通迢奸。令有效通這指示資訊包含於空間資訊訊號1〇3之標頭 105或者空間框1〇7中’編碼裝置可傳送有效通道指示資訊至解碼 /裝置。如前所述，編碼裝置有效地產生空間資訊訊號1〇3，將此訊 號連同P牛此減101傳送至解碼裝置或者與降混訊號1〇1單獨地 傳送。 ^ 3. 解碼 3·1有魏叙出現麵缺失之判定方法 使用傳达自編碼裳置之降混訊號及空間資訊訊號他或 者先刖儲存之降混峨101及空間資訊訊號應，解碼裝置重新建 立輸入至編碼裝置之初衫通道髓滅219。解碼裝置從空間資 IfL號103中擷取空間參數，然後應用擷取之空間參數至各升混 單元以重新建立初料道。解铺置從抓資訊喊1Q3中擷取 _ 帛則日不修正空間資訊類型之資訊，然後由空間資訊訊號1〇3產 生相同類型之修正空間資訊訊號。此類型之修正空間資訊包含部 伤空間貧訊訊號或延伸空間資訊訊號。部份空間資訊訊號包含一 部份空間茶數，延伸空間資訊係使用延伸空間資訊訊號及空間資 訊訊5虎而產生。如果用於識別修正空間資訊訊號之類型之訊號包 ，含於空間資訊訊號103中，解碼裝置使用空間資訊訊號1〇3中包 含的訊號透過修正空間資訊訊號103而產生修正空間資訊訊號， 然後使用修正空間資訊訊號以解碼降混訊號。如果此類型之修正 21 200803588 空間資訊訊號為部份空間資 置所支援之通道被重新建立:即置侧 通道可被重新建立。使用編码裳;衣備測到包含無效值之 裝置可;^待重靳、g ' '送之空間資訊訊號103，解碼 ^置了於俩難蚊麵_狀顿 置於空間資訊訊號1()3中擷取 s有效值知碼裝 值，然後使用擷取之空間史數仙::用至各升混單元之空間參數 有效通道。或者，使财m刚待重新建立之通道係為 資訊或者通道組態識別符，解;f訊號103之有效通道指示 道係為有效通道。衣置可判定哪個待重新建立之通 結合「第4圖」解釋包含 立有效通道之方法。結合独狀解碼裝置重新建 「第4圖」係為解碼裝置之 一RS) RS) RS), ": The combination of the channel, and, and the sadness is shown in Table 1. The coded device is like the channel_, according to the number of I secrets and the class 1 and the class 1 transmission. Please "~生^_朗符, then set the number of round handles to 2, through light 20 200803588 • Touch device can be notified • The effective channel of the device is left front channel LF and right.. Month through rape. Effective The indication information is included in the header 105 of the spatial information signal 1〇3 or the space frame 1〇7. The encoding device can transmit the effective channel indication information to the decoding/device. As described above, the encoding device effectively generates the spatial information signal. 1〇3, this signal is transmitted to the decoding device together with the P cattle minus 101 or transmitted separately with the downmix signal 1〇1. ^ 3. Decoding 3·1 has the method of determining the missing face of Wei Xu using the self-encoding The placement of the downmix signal and the spatial information signal, he or the first storage of the downmix 101 and the spatial information signal should be, the decoding device re-establishes the input to the encoding device of the first shirt channel 219. The decoding device from the space source IfL number 103 Take the space parameter and apply it to The spatial parameters are added to each of the sub-mixing units to re-establish the initial feedway. The unlaying captures the information from the capture information call 1Q3, and does not correct the information of the spatial information type, and then generates the same type of correction from the spatial information signal 1〇3. Spatial information signal. This type of correction space information includes the Ministry of Space Information or the Extended Space Information Signal. Some of the space information signals include a part of the space number of the space, and the extended space information is the use of the extended space information signal and space information. If the signal packet for identifying the type of the modified spatial information signal is included in the spatial information signal 103, the decoding device uses the signal contained in the spatial information signal 1〇3 to generate the corrected spatial information through the modified spatial information signal 103. Signal, then use the modified spatial information signal to decode the downmix signal. If this type of correction 21 200803588 spatial information signal is re-established for the channel supported by some space resources: the side channel can be re-established. Skirt; equipment to detect the device containing invalid value; ^ to be repeated, g ' 'send space information signal 103 Decoding ^ is placed in the two difficult mosquito surface _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The effective channel of the spatial parameter. Or, the channel that has just been re-established is the information or channel configuration identifier, and the solution; the effective channel of the signal 103 indicates that the channel is a valid channel. The clothing can determine which to be re-established. The method of including the effective channel is explained in conjunction with "Fig. 4". Reconstructed with a unique decoding device. Figure 4 is one of the decoding devices.
包含降混單元202之編碼穿置之雕早70透過接收來自 m、、 、、、、置之知域號而重新建立左前通道LF 及右刖通迢RF之方塊圖。 4考⑦4圖.」’解竭裝置從空間資訊訊號 參數值’然後透過應用操取之空間參數值至第一、第_中、：:間 第四以及第五升混單核域建絲始職。 ，解碼裝置為升混單元讀取資歡各抑框107。升混單元所用 之貝訊包含應龍各升混單元之空轉數值之資訊。空間參數值 可為既禮、雜w—參數值之值、祕錢者從空間資訊訊號 22 200803588 ι〇3新擷取之編碼值。如果空間參數值為娜自空間資訊訊請 之編瑪值’則解碼裝置擷取空間參數值，解碼此擷取值 用此解碼值至各升混單元。 一心The coded insertion of the downmix unit 202 includes re-establishing a block diagram of the left front channel LF and the right channel overnight RF by receiving the domain numbers from m, , , , , and . 4 test 74 map." 'Exhaustion device from the space information signal parameter value' and then through the application to manipulate the spatial parameter value to the first, the first _, the:: fourth and fifth liter mixed single core domain construction Job. The decoding device reads the block 107 for the upmixing unit. The information used in the upmixing unit contains information on the idling values of the respective hoisting units. The spatial parameter value can be the value of the ritual, miscellaneous w-parameter value, and the code value obtained by the secret money from the spatial information signal 22 200803588 ι〇3. If the spatial parameter value is the coded value of the self-space information message, the decoding device takes the spatial parameter value and decodes the captured value to use the decoded value to each of the upmixing units. One heart
、降混過程擷取之空間參數值為CLm、CLD2、ttD3、^M 、及 5如果第3圖」之編碼裝置透過將這些值包含於空間 資訊訊號103中傳送至解喝裳置，根據應用至第—升混單元之 ⑽及應用至第二升混單^之CLm為⑼的事實，解碼裝置可 摘測出第-及第二升混私令所有能量關式所示之箭頭方向傳 輸0 透過從空間資訊訊號103中綠取之空間參數CLm，然後應用 擷取之CLD4至第四升混單元，_裝置可重新建立左前通道π 及右前通道RF。 - 根蟫能量不向第三升混單元及第五升混單元傳輸之事實，解 碼裝置可敢從第三、細及第珊混單元輪出之巾絲通道C、 通道LFE、左魏通道LS及右魏通道Rs之值所輪 出之^為0。即，使賴用至上—級升混單故空間參數值，解 絲置可判ΐ下—級升混單元輪出之通道為G。因此，依照應用至 上-級升混單元之空間參數值，可能不需要應紐下— 元之空間參數值。 '丌此早 果、、·扁碼U表不空間參數值為既定值並且將其傳送至解石馬 裝置，贿碼裝置舰此既定值翻如參數值至各升混單心 23 200803588 而無須新讀取空間參數H 3圖」中，因為cLm以及Cm] 為15〇,編碼裝置將其表示為既定值i，然後將其傳送至解碼裝置。 「第4圖」中，解碼裝置可使魏定幻侧出CLD1及⑽2 '為15〇。透過各自應用CLD1及CLD2值至第—及第开， 解碼裝置彳細所魏量面向上蚊方向，錢可判^含有效 值之特別通道以及包含虛擬值之特別通道。 • 〜根據空間f訊訊號103中包含之有效通道指示資訊或者通道 組態識別符，解碼裝置可判定特別有效通道。 解瑪裝置可制各通料财餘絲通奴轉有效通道 之有效通麵示資域者各升混單歧否產生枝通道之顯示方 法。「第4圖」中，根據各通道序列中指示有效通道之資訊為ιι〇〇〇〇 之事實’解碼裝置可侧出僅僅左前通道^及右前通道处為有 效通道，剩，四個通道的值為〇。透過判定僅僅第四升混單元▲啟 修動以產生有效通道且剩餘之升混單元不產生有效通道，使用依照 升混單元順序指示是否產生訊號之有效通道絲資訊_价解碼 裝置可判定有效通道為左前通道LF及右前通道即。根據通道組 態識別符為1(001)之事實，解碼裝置可判定左前通道^及右前通 道RP為有效通道。 「第5圖」係為包含5小52通道組態之解石馬裳置之有效通道 之判定方法。 請參考「第5圖」，解碼裝置從空間資訊訊號1〇3中擷取空間 24 200803588 >數值並且應用此值至各升混單元。如果操取值為既定值，解 碼裝置使用對應於既定值之空間參數，然後顧此使祕至各升 混早元。 / —根據操取之CLD1為⑼或者擷取之CLD1之既定值為！之 ，事μ解碼裝置可彳貞_第—升混單元所輪出之訊號健面對向 上之方向。根據CLD2為〇或者既定值為〇的事實，解碼裝置可 肇制出乐—升混單兀輸出之訊號被劃分為兩個訊號。根據CLD4 及CLD5為150或者既定值為i之事實，解碼裝置可偵測出第四 升此單7L輸出之輯及第五升混單元輸出之訊號僅僅面對向上之 方向ϋ此，解碼裝置可判定左前通道LF及右前通道即為有效 L逞如月ij所述，解碼裝置可使用包含於空間資訊訊號⑽中之 有效通道指示資訊判定特別有效通道。「第5圖」中，如果依照各 輸出通逼序列表不之有效通道指示資訊為ι〇ι_，解碼裝置可判 •(昂一輸出通逞°"及第三輸出通道RF為有效通道。如果依照各 升混單元表示之有效通道指示資訊為⑽〇〇,透過細出第二升混 單元產生有效通道，解碼裝置可判定左前通道LF及右前通道^ 為有效通道。如果通道組態識別符為i (〇〇1)，解瑪裝置也可使用 Y通道組態識別符判定輸出通道中之左前通道LF及右前通道kp為 有效通道。 … 3.2非有效通道之解碼之忽略方法 如果通道數目少於初始通道組態之訊號被接收 ’解碼裝置可 200803588 依照秘通道紐態執行解碼。然而此實施例中，解碼裝置重新建 立包含無效值之虛擬通道。因此，解碼裝置可忽略用於產生被判 定為無效之通道之—系觸碼過程，即，使贿綱器產生非相 關訊號之過程、綜合驗器組之触、矩料#之触 生之過程等。 糸数產 3·3有效通道顯示 解碼裝置可為_者或者於後處理健上顯衫 號⑽包含之通道是否為有效通道或者包含虛擬值之通道某= 建立多通這媒體訊號219之前，解碼裝置可使用前述方法匈定哪 固通道為歧通道。這並_於關本剌。解碼裝置可選擇性 地透過解碼媒體訊號210重新建立多通道媒體訊號219，判定哪個 ^新^立之魏財效通道，然魏糊示狀結果。依照使用 者之遙擇或者後處理結果例聲 鮮⑸t _ 1冰耳曰域表不寺，後處理裝置使用解 =熟不之有效通道於解碼裝置輪出之多通道媒體訊號中完成 降混。 【圖式簡單說明】 第1圖所示為本發明實施例 之媒體訊號之示意圖： 過編猶置傳送至解碼裝置 置之所示縣發腎關之包含編碼及解辦置之媒體裝 弟3圖所示為本發明實施例之降混單元之方塊图 26 200803588 第4圖所示為本發明實施例之通道產生單元之方塊圖；以及 第5圖所示為解碼裝置中有效通道之判定方法之示意圖。 【主要元件符號說明】The spatial parameter values extracted by the downmixing process are CLm, CLD2, ttD3, ^M, and 5. If the encoding device of Fig. 3 is included in the spatial information signal 103, it is transmitted to the solution, according to the application. The fact that the (10) to the first-up mixing unit and the CLm applied to the second-level mixing unit are (9), the decoding device can extract the first and second liters of the private direction of the arrow shown in the direction of the transmission. The left front channel π and the right front channel RF can be re-established by taking the spatial parameter CLm from the spatial information signal 103 and then applying the captured CLD4 to the fourth liter mixing unit. - The fact that the root energy is not transmitted to the third liter mixing unit and the fifth liter mixing unit, the decoding device can dare to take the towel channel C, the channel LFE, the left Wei channel LS from the third, fine and symmetrical mixing units. And the value of the right Wei channel Rs is 0. That is to say, the value of the spatial parameter of the upper-level up-mixing single-use is determined, and the channel is determined to be G. Therefore, depending on the value of the spatial parameter applied to the up-stage upmixing unit, the spatial parameter value of the element should not be required. '丌丌早,,······································································································ In the new read space parameter H 3 map", since cLm and Cm] are 15 〇, the encoding device expresses it as a predetermined value i and then transmits it to the decoding device. In "Fig. 4", the decoding device can make CLD1 and (10)2' 15 〇. By applying the CLD1 and CLD2 values to the first and the first, the decoding device can determine the special channel with the effective value and the special channel containing the virtual value. • The decoding device can determine a particularly valid channel based on the valid channel indication information or channel configuration identifier contained in the space f signal 103. The solution can be used to display the effective channel of each pass, and the effective way of displaying the channel is to display the method of the branch channel. In "Fig. 4", according to the fact that the information indicating the effective channel in each channel sequence is ιι〇〇〇〇, the decoding device can side out only the left front channel ^ and the right front channel as valid channels, and the remaining four channels have values. Why? By determining that only the fourth liter mixing unit ▲ is activated to generate an effective channel and the remaining upmixing unit does not generate an effective channel, the effective channel information is determined using the effective channel information in accordance with the order of the upmixing unit to indicate whether a signal is generated. It is the left front channel LF and the right front channel. According to the fact that the channel configuration identifier is 1 (001), the decoding device can determine that the left front channel ^ and the right front channel RP are valid channels. "Picture 5" is a method for judging the effective channel of the solution of the 5 small 52-channel configuration. Please refer to "figure 5". The decoding device extracts the space from the spatial information signal 1〇3 and applies this value to each of the upmixing units. If the manipulated value is a predetermined value, the decoding device uses the spatial parameter corresponding to the set value, and then makes the secret to each of the early mixed elements. / — According to the CLD1 taken (9) or the default value of CLD1 taken! In the case of the μ decoding device, the signal that is rotated by the __------------------------------------------------ According to the fact that CLD2 is 〇 or the value is 〇, the decoding device can split the signal outputted by the music-upmixing unit into two signals. According to the fact that CLD4 and CLD5 are 150 or the value is i, the decoding device can detect that the signal of the fourth liter of the single 7L output and the output of the fifth liter mixing unit only face the upward direction, and the decoding device can It is determined that the left front channel LF and the right front channel are valid L. As described in the month ij, the decoding device can determine the special effective channel by using the effective channel indication information included in the spatial information signal (10). In "5th picture", if the valid channel indication information is ι〇ι_ according to each output pass sequence list, the decoding device can determine that (the Ang output is 逞°" and the third output channel RF is an effective channel. If the effective channel indication information indicated by each of the upmixing units is (10), and the effective channel is generated by thinning out the second upmixing unit, the decoding device can determine that the left front channel LF and the right front channel ^ are valid channels. If the channel configuration identifier For i (〇〇1), the solution can also use the Y channel configuration identifier to determine that the left front channel LF and the right front channel kp in the output channel are valid channels. ... 3.2 Negation of decoding of non-effective channels If the number of channels is small The signal configured in the initial channel is received. 'The decoding device can perform the decoding according to the secret channel state. However, in this embodiment, the decoding device re-establishes the virtual channel containing the invalid value. Therefore, the decoding device can be ignored for the generation to be determined. The channel that is ineffective is the process of touching the code, that is, the process of making the brigade generate unrelated signals, the touch of the comprehensive detector group, and the contact of the moment material # Cheng et al. 糸 产 3 3 3 有效 有效 显示 显示 显示 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码 解码The decoding device can use the foregoing method to determine which solid channel is the disparity channel. This is also the case. The decoding device can selectively re-establish the multi-channel media signal 219 by decoding the media signal 210 to determine which one is new. Wei Caixiao channel, but Wei paste results. According to the user's remote choice or post-processing results, the sound is fresh (5) t _ 1 ice ear 曰 domain table is not a temple, the post-processing device uses the solution = cooked no effective channel in the decoding device The downmixing is completed in the multi-channel media signal. [Simplified Schematic] FIG. 1 is a schematic diagram of a media signal according to an embodiment of the present invention: the code is transmitted to the decoding device and is displayed in the county 3 is a block diagram of a downmixing unit according to an embodiment of the present invention. FIG. 4 is a block diagram of a channel generating unit according to an embodiment of the present invention; As shown in FIG. 5 is a schematic view of a method of determining the effective channel of the decoding apparatus. The main element REFERENCE NUMERALS
101 降混訊號 103 空間貧訊訊號 105 標頭 107 空間框 201 媒體訊號 202 降混單元 203 空間資訊擷取單元 205 降混訊號編碼單元 207, 空間資訊編碼單元 209 多工單元 210 媒體訊號 211 解多工單元 213 .降混訊號解碼單元 215 空間資訊解碼單元 217 通道產生單元 219 媒體訊號 301 媒體訊號 C 中央前通道 27 200803588101 downmix signal 103 spatial poor signal 105 header 107 space frame 201 media signal 202 downmix unit 203 spatial information capture unit 205 downmix signal encoding unit 207, spatial information encoding unit 209 multiplex unit 210 media signal 211 solution Unit 213. Downmix signal decoding unit 215 Spatial information decoding unit 217 Channel generating unit 219 Media signal 301 Media signal C Central front channel 27 200803588
LF RF LS RS LFE 左前通道 右前通道 左環繞通道 右環繞通道 低音揚聲器通道 空間參數 CLm、CLD2、CLD3、CLD4、CLD5LF RF LS RS LFE Left front channel Right front channel Left surround channel Right surround channel Subwoofer channel Spatial parameters CLm, CLD2, CLD3, CLD4, CLD5