1314721 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種數位式吹氣式樂器及其樂音產生 . 方法，特別是有關於一種具有吹奏模式及練習模式之數位 式吹氣式樂器。 【先前技術】 目前，吹氣式樂器，如陶笛、笛、喇叭，因為具 > 有容易攜帶且樂音悅耳的特性，因此廣為大家喜歡。然 而，吹氣式樂器的學習十分不易，光是如何吹氣使樂器 發出聲音便十分不容易，如果要享受吹奏吹氣式樂器的 樂趣，得要有良好的技巧以及足夠的肺活量。因此可知， 吹氣式樂器的學習門檻很高，如何降低吹氣式樂器的學 習難度是一個亟待解決的問題。 有鑑於習知技藝之各項問題，為了能夠兼顧解決 之，本發明人基於多年研究開發與諸多實務經驗，提出 Φ 一種數位式吹氣式樂器及其樂音產生方法，以作為改善上 述缺點之實現方式與依據。 【發明内容】 有鑑於此，本發明之目的就是在提供一種數位式吹 氣式樂器及其樂音產生方法，以降低學習吹氣式樂器的困 難。 根據本發明之目的，提出一種數位式吹氣式樂器，其 1314721 包含一殼體、一記憶體、複數個按鍵、一吹氣感應器、一處 理單元及一音訊輸出裝置。殼體具有一吹氣孔，而記憶體用 以儲存複數個音頻資料。按鍵係配置於殼體上，用以提供使 用者按壓以產生至少一觸發訊號。吹氣感應器用以偵測使用 _ 者透過吹氣孔吹氣之強度，並產生一對應吹氣強度之電性訊 號。處理單元根據該對應吹氣強度之電性訊號、觸發訊號及 音頻資料，產生一音訊訊號，並透過音訊輸出模組輸出，藉 此產生一樂音。 • 此外，本發明之數位式吹氣式樂器具有吹奏模式及練習 模式，在吹奏模式時，數位式吹氣式樂器根據使用者吹氣 強度及所按按鍵來發出樂音。而在練習模式下，數位式吹 氣式樂器根據樂譜資料依序驅動按鍵發光，來引導使用者練 習樂曲。 此外，本發明更提出一種樂音產生方法，其包含：提供 複數個音頻資料；接收至少一觸發訊號；偵測一吹氣強度， 並產生一對應吹氣強度之電性訊號；根據對應吹氣強度之電 • 性訊號、觸發訊號及音頻資料，產生一音訊訊號；輸出音訊 訊號。 茲為使貴審查委員對本發明之技術特徵及所達到 之功效有更進一步之瞭解與認識，謹佐以較佳之實施例 及配合詳細之說明如後。 【實施方式】 以下將參照相關圖式，說明依本發明較佳實施例之 1314721 * % ， ^ ' 數位式吹氣式樂器及其樂音產生方法，為使便於理解，下 述實施例中之相同元件係以相同之符號標示來說明。 請參閱第1圖，其係為本發明之數位式吹氣式樂器之 實施例之方塊圖，此實施例係為一數位式陶笛。圖中， 數位式陶笛1包含一殼體10、一記憶體11、複數個按鍵12、 一吹氣感應器13、一處理單元14、一音訊輸出裝置15及一 資料傳輸埠16。殼體10上具有一吹氣孔131，以供一使用者 吹氣，而記憶體11配置於殼體10中，用以儲存複數個音頻 • 資料及樂譜資料。按鍵12配置於該殼體上，用以提供使用者 按壓以產生至少一觸發訊號121並傳送至處理單元14。其 中，不同按鍵12係對應不同的音頻資料，而每一按鍵可包含 一發光二極體。 吹氣感應器13配置於殼體10中，用以偵測使用者透過 吹氣孔131吹氣之強度，並產生一對應吹氣強度之電性訊 號。吹氣感應器13可用一振動膜及一振動電性訊號轉換器來 實現，當使用者吹氣時，振動膜根據吹氣強度有不同的振動 • 幅度及頻率，振動電性訊號轉換器將振動膜之震動幅度或頻 / 率轉換成電性訊號。 . 處理單元14配置於殼體10中，其根據對應吹氣強度之 電性訊號、觸發訊號121及儲存於記憶體11之音頻資料，產 生一音訊訊號並傳送至音訊輸出模組15,而音訊輸出模組15 將音訊訊號轉換成類比訊號並輸出，因此使用者可聽到數位 式陶笛1發出一樂音。 7 1314721 透過上述過程，使用者操作數位式陶笛1就像是在操 作一陶笛，按壓不同按鍵則數位式陶笛1發出不同的樂 音，而越強的吹氣則數位式陶笛1發出的樂音越大聲， 越弱的吹氣則數位式陶笛1發出的樂音越小聲。此外，上 述數位式吹氣式樂器視需要可包含一吹管，配置於吹氣孔 131中，可協助使用者吹氣集中至吹氣感應器13。 此外，數位式陶笛1具有吹奏模式及練習模式，在 吹奏模式時，數位式陶笛1根據使用者吹氣強度及所按 .按鍵來發出樂音。而在練習模式下，處理器14自記憶體 11讀取樂譜資料，係根據樂譜資料來產生音訊訊號並驅動按 鍵中的發光二極體發光，藉此，以引導使用者練習樂曲。隨著樂 曲播出，處理器14依序驅動按鍵發光及不發光，以提示使用 者該按及不該按的按鍵。因此，數位式陶笛1幫助使用者 練習不同曲目，可增加學習樂趣。 再者，數位式陶笛1視需要可包含一資料傳輸埠16， 如USB介面埠，數位式陶笛1可透過資料傳輸埠16與一外部 • 電子裝置進行資料傳輸，例如，使用者可透過USB介面埠將數位 式陶笛1與電腦連接，來將音頻資料或樂譜資料從電腦 下載至數位式陶笛1並儲存於記憶體11。 請參閱第2圖，其係為本發明之樂音產生方法之較佳 實施例之步驟流程圖。圖中，此方法係對應第1圖所示 之數位式陶笛1，此方法包含下列步驟： 步驟20:提供複數個音頻資料，音頻資料係儲存於記憶 體11中； 8 ‘1314721 喻）似日修正替換頁 步驟21:接收至少一觸發訊號，此觸發訊號係為使用者 按壓複數個按鍵12所產生； 步驟22:偵測一吹氣強度，並產生一對應該吹氣強度之 電性訊號，使用者係透過吹氣孔131對數位式陶笛1吹氣， 而吹氣感應器13之振動膜可偵測使用者吹氣之強度並利用 一振動電性訊號轉換器產生對應吹氣強度之電性訊號； 步驟23:根據該對應該吹氣強度之電性訊號、該觸發訊 號及該複數個音頻資料，產生一音訊訊號，在數位式陶笛1 中，係由處理單元14來產生音訊訊號； 步驟24:輸出該音訊訊號，由音訊輸出模組15將音訊 訊號轉換成類比訊號並輸出，讓使用者聽到一樂音。 已上所述僅為舉例性，而非為限制性者。任何未脫 離本發明之精神與範疇，而對其進行之等效修改或變 更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】1314721 IX. Description of the Invention: [Technical Field] The present invention relates to a digital air-blown musical instrument and its musical tone generation method, and more particularly to a digital air-blown musical instrument having a playing mode and a practice mode . [Prior Art] At present, air-blown musical instruments, such as ocarina, flute, and horn, are widely used because they have the characteristics of being easy to carry and pleasant tones. However, the study of a blown-out instrument is very difficult. It is not easy to blow the sound of the instrument. If you want to enjoy the fun of blowing a gas-filled instrument, you must have good skills and sufficient lung capacity. Therefore, it can be seen that the learning threshold of the air-blown musical instrument is very high, and how to reduce the learning difficulty of the air-blown musical instrument is an urgent problem to be solved. In view of the problems of the prior art, in order to be able to solve the problem, the inventor has proposed a digital gas-blown musical instrument and its musical tone generation method based on years of research and development and many practical experiences, in order to improve the above disadvantages. Ways and basis. SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide a digital inflated musical instrument and a musical tone generating method thereof, which can reduce the difficulty in learning a blown musical instrument. In accordance with the purpose of the present invention, a digital inflated musical instrument is provided, the 1314721 comprising a housing, a memory, a plurality of buttons, a blowing sensor, a processing unit and an audio output device. The housing has a blow hole and the memory is used to store a plurality of audio materials. The button system is disposed on the housing for providing a user to press to generate at least one trigger signal. The air blowing sensor is used to detect the intensity of the air blown through the air blowing hole and generate an electrical signal corresponding to the blowing strength. The processing unit generates an audio signal according to the electrical signal, the trigger signal and the audio data corresponding to the blowing intensity, and outputs the audio signal through the audio output module, thereby generating a tone. • In addition, the digital air-blown musical instrument of the present invention has a playing mode and a practice mode, and in the blowing mode, the digital air-blown musical instrument emits a musical tone according to the user's blowing intensity and the pressed button. In the practice mode, the digital blown instrument drives the button illumination sequentially according to the score data to guide the user to practice the music. In addition, the present invention further provides a tone generating method, including: providing a plurality of audio data; receiving at least one trigger signal; detecting a blowing intensity, and generating an electrical signal corresponding to the blowing intensity; according to the corresponding blowing intensity The electrical signal, the trigger signal and the audio data generate an audio signal; the audio signal is output. For a better understanding of the technical features of the present invention and the efficacies of the present invention, the preferred embodiments and the detailed description are as follows. [Embodiment] Hereinafter, a 1347221*%, ^' digital air-blown musical instrument and a tone generating method thereof according to a preferred embodiment of the present invention will be described with reference to the related drawings, which are the same in the following embodiments for ease of understanding. Components are denoted by the same reference numerals. Referring to Fig. 1, which is a block diagram of an embodiment of a digital inflated musical instrument of the present invention, this embodiment is a digital ocarina. In the figure, the digital ocarina 1 comprises a casing 10, a memory 11, a plurality of buttons 12, a blowing sensor 13, a processing unit 14, an audio output device 15, and a data transmission port 16. The housing 10 has a blow hole 131 for a user to blow, and the memory 11 is disposed in the housing 10 for storing a plurality of audio data and musical score data. The button 12 is disposed on the housing for providing a user press to generate at least one trigger signal 121 and transmitting to the processing unit 14. Among them, different buttons 12 correspond to different audio materials, and each button may include a light emitting diode. The air blowing sensor 13 is disposed in the casing 10 for detecting the intensity of the air blown by the user through the air blowing hole 131 and generating an electrical signal corresponding to the blowing strength. The air blowing sensor 13 can be realized by a vibrating membrane and a vibrating electrical signal converter. When the user blows the air, the vibrating membrane has different vibrations, amplitudes and frequencies according to the blowing strength, and the vibrating electrical signal converter will vibrate. The amplitude or frequency/rate of the film is converted into an electrical signal. The processing unit 14 is disposed in the housing 10, and generates an audio signal according to the electrical signal corresponding to the blowing intensity, the trigger signal 121, and the audio data stored in the memory 11, and transmits the audio signal to the audio output module 15, and the audio signal is transmitted to the audio output module 15 The output module 15 converts the audio signal into an analog signal and outputs it, so that the user can hear the digital ocarina 1 emit a tone. 7 1314721 Through the above process, the user operates the digital Ocarina 1 as if it is operating an Ocarina. When the different buttons are pressed, the digital Ocarina 1 emits different tones, and the stronger the insufflation, the digital Ocarina 1 is issued. The louder the sound, the weaker the blow, the smaller the sound of the digital Ocarina 1 is. In addition, the above-mentioned digital air-blown musical instrument may include a blow pipe disposed in the air blowing hole 131 as needed to assist the user to blow the air to the air blowing sensor 13. In addition, the digital ocarina 1 has a playing mode and a practice mode. In the playing mode, the digital ocarina 1 emits a tone according to the user's blowing intensity and the pressed button. In the practice mode, the processor 14 reads the music score data from the memory 11, and generates an audio signal based on the music score data and drives the light-emitting diode in the key to emit light, thereby guiding the user to practice the music. As the music is broadcast, the processor 14 sequentially drives the buttons to illuminate and not to illuminate to prompt the user to press the button. Therefore, the digital Ocarina 1 helps users practice different tracks, which can increase learning fun. Furthermore, the digital Ocarina 1 can include a data transmission port 16 as required. For example, a USB interface, the digital Ocarina 1 can transmit data through the data transmission port 16 and an external electronic device, for example, through the user. The USB interface connects the digital Ocarina 1 to the computer to download audio data or music score data from the computer to the digital Ocarina 1 and store it in the memory 11. Please refer to Fig. 2, which is a flow chart showing the steps of a preferred embodiment of the tone generating method of the present invention. In the figure, the method corresponds to the digital Ocarina 1 shown in Fig. 1. The method comprises the following steps: Step 20: providing a plurality of audio materials, the audio data is stored in the memory 11; 8 '1314721 喻) Step 2: Receive at least one trigger signal, which is generated by the user pressing a plurality of buttons 12; Step 22: detecting a blowing intensity and generating a pair of electrical signals that should be blown in intensity The user blows the digital ocarina 1 through the air blowing hole 131, and the diaphragm of the air blowing sensor 13 can detect the intensity of the user's blowing and use a vibrating electrical signal converter to generate the corresponding blowing intensity. Electrical signal; Step 23: generating an audio signal according to the electrical signal corresponding to the blow strength, the trigger signal and the plurality of audio data. In the digital ocarina 1, the processing unit 14 generates the audio signal. Step 24: Output the audio signal, and the audio output module 15 converts the audio signal into an analog signal and outputs it, so that the user can hear a tone. The above description is only illustrative and not limiting. Any changes or modifications to the spirit and scope of the present invention are intended to be included in the scope of the appended claims. [Simple description of the map]
第1圖係為本發明之數位式吹氣式樂器之實施例之方塊圖； 以及 第2圖係為本發明之樂音產生方法之實施例之步驟流程圖 【主要元件符號說明】 I :數位式陶笛； 10 :殼體； II :記憶體； 12 :按鍵； 121 :觸發訊號； 13 :吹氣感應器； 131 :吹氣孔； 14 :處理單元； 15 :音訊輸出裝置； 16 :資料傳輸埠；以及 20〜24:步驟流程。1 is a block diagram of an embodiment of a digital air-blown musical instrument of the present invention; and FIG. 2 is a flow chart of steps of an embodiment of a musical tone generating method of the present invention [Description of main components] I: digital Ocarina; 10: housing; II: memory; 12: button; 121: trigger signal; 13: blowing sensor; 131: blowing hole; 14: processing unit; 15: audio output device; ; and 20~24: step flow.