CN201226588Y - Multi-sound channel digital sound field earphone device - Google Patents

Abstract

The utility model discloses a multichannel digital sound field earphone device, including a pair of multichannel earphone, audio signal control box and universal serial connection bus (USB) connecting wire. The audio control box has a Universal Serial Bus (USB) connection interface, a connection interface conforming to the S/PDIF specification, and a switch, wherein the connection interface of the S/PDIF specification outputs a digital signal having a Dolby AC3/DTSCONNECT format according to the S/PDIF specification, and the switch switches an operation mode of the multi-channel digital sound field earphone device. One end of a universal serial connection bus (USB) connecting wire is connected to the audio control box through a USB connecting interface, the other end of the USB connecting wire is connected to an external sound source through a universal serial connection bus connecting terminal, and the audio control box is used for sounding the multi-channel earphone, or a digital signal with a Dolby AC3/DTS CONNECT format is output through a connecting interface conforming to the S/PDIF specification.

Description

Multi-channel digital sound field headphone device

technical field

The utility model relates to a multi-channel earphone device, in particular to an earphone device with a multi-channel digital stereo sound field.

Background technique

With the advancement of digital technology, people's life and entertainment are gradually becoming digital. For example, a Digital Video Disc (Digital Video Disc, generally referred to as DVD) player is a common video playback device in ordinary families. And because the DVD player basically has the decoding function of Dolby Digital (Dolby Digital) or Digital Theater System (Digital Theater System, generally referred to as DTS), it can decode the digital signal and output the analog signal to the speaker to make it vocalize.

If you want to have a high-quality digital audio-visual entertainment life, multi-channel speakers are indispensable equipment, and 5.1-channel speakers are the most basic multi-channel speakers.

FIG. 1 is a schematic diagram of a home theater with 5.1-channel speakers. Please refer to Fig. 1, DVD player 100 will output different sound signals to the left speaker 102a and right speaker 102b of the front main channel, center channel (Center) speaker 104, and surround channel respectively while playing video and audio. The left speaker 106a, the right speaker 106b, and the subwoofer 108 of (Surround) make it produce three-dimensional sound effect, which makes people have a sense of reality.

However, when it is not suitable to use speakers to play sound (for example, it will hinder other people from doing things), it is necessary to use earphones to listen. Please refer to FIG. 2A , since the general earphone 200a is only equipped with a speaker 210 on the left and right sides, the user cannot enjoy the multi-channel sound effect output by the DVD player.

For this reason, an earphone with multiple speakers inside is currently proposed, as shown in FIG. 2B . The earphone 200b is equipped with a front main channel speaker 202, a central channel speaker 204, and a surround channel speaker 206 on the left and right sides respectively, and is equipped with a specially designed plug 208, so that the DVD player can use the plug 208 to connect different audio channels. The audio of the channel is output to different speakers, thereby producing the effect of the 5.1-channel speaker in the home theater as shown in FIG. 1 . However, it is still far from the effect of the 5.1-channel speaker in the home theater shown in Figure 1, and cannot present the quality and efficacy of multi-channel surround sound.

In addition, whether it is the general earphone 200a in FIG. 2A or the multi-channel earphone 200b in FIG. 2B , it must be connected to a host with a 5.1-channel audio output. However, since the multi-channel signals must be connected by different lines, if the signal line is plugged and switched between the host and the earphone, it will cause great trouble.

In addition, for currently widely used devices such as computer systems or video game consoles, there is an increasing demand for 5.1 multi-channel surround sound effects by transmitting signals through a connection interface such as a Universal Serial Bus (USB). Therefore, having a multi-channel earphone that can be connected to a computer system or a video game console is also the direction that the industry wants to develop.

Utility model content

The purpose of the utility model is to provide a multi-channel digital sound field earphone device to solve the above problems.

The purpose of this utility model is achieved in that a multi-channel digital sound field earphone device is provided, which includes a pair of multi-channel earphones, an audio control box and a Universal Serial Bus (USB) connecting line. The pair of multi-channel earphones are connected to both sides of a fixed unit. The audio control box is electrically connected to the pair of multi-channel earphones. This audio control box has a Universal Serial Bus (USB) connection interface, a connection interface conforming to the S/PDIF standard, and a switch, wherein the S/PDIF standard connection interface is used for S/PDIF standard output with Dolby AC3 /DTS CONNECT format digital signal, and the switch is used to switch the operation mode of the multi-channel digital sound field headphone device. One end of the universal serial connection bus (USB) connection line is connected to the audio control box through the USB connection interface, and the other end is connected to an external audio source through the universal serial connection bus connection terminal, and thus the multi-channel earphone is connected through the audio control box Produce sound, or output digital signals in DolbyAC3/DTS CONNECT format via a connection interface that conforms to the S/PDIF specification.

And in the above-mentioned multi-channel digital sound field earphone device, the main loudspeaker and a plurality of sub-speakers in the multi-channel earphone are respectively connected to a 5.1 multi-channel sound source output by a player suitable for a digital versatile disc (DVD) according to characteristics. . In one embodiment, the main speaker is used as a front main channel speaker of a 5.1 multi-channel audio source, and one of the sub speakers can be used as a subwoofer, a center channel speaker and a surround channel speaker.

The utility model has the advantage that it includes a pair of multi-channel earphones, an audio control box and a universal serial bus (USB) connection line, etc., so that the user can enjoy the multi-channel sound effect output by the player, and can generate 5.1 multi-channel surround sound effect, with functions such as being able to connect to a computer system or a video game console.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, a preferred embodiment will be exemplified below and described in detail in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is a schematic diagram of a home theater with a 5.1-channel speaker;

Fig. 2A is a side sectional view of a conventional earphone;

Fig. 2B is a side sectional view of another conventional earphone;

3A to 3D are respectively the front side view, the back side view, the front view and the back view of a multi-channel earphone in a preferred embodiment of the present invention;

FIG. 3E is a partial sectional view and an exploded view of the structure of the multi-channel earphone in FIG. 3A;

Fig. 4A is a side view of the multi-channel digital sound field earphone device of the present invention;

FIG. 4B and FIG. 4C are schematic diagrams of microphone installation and removal of the multi-channel digital sound field earphone device of the present invention;

4D to 4G are side and front structural diagrams of the audio control box of the multi-channel digital sound field earphone device in FIG. 4A;

5A to 5C are structural schematic diagrams of specific embodiments of the audio control box of the present invention and side views of its application.

Description of drawings

100: Digital Video Disc Player

102a: Front main channel left speaker

102b: Front main channel right speaker

104: Center channel speaker

106a: Surround channel left speaker

106b: Surround channel right speaker

200a, 200b: headphones

202: Front main channel speaker

204: Center channel speaker

206: Surround channel speakers

208: Earphone plug

210: Horn

300: Multi-channel headphone structure

310: chamber body

312: front cavity mixing room part

313: Main sound room support frame

314: Composite sound chamber cavity part

315A～315D: holes

317: Projection

320, 330: chamber extension tube

340: main speaker

325, 335, 350: sub speakers

400: Multi-channel digital sound field headphone device

405: fixed unit

410, 420: multi-channel headphones

416: Connection part

418: Contact connection area

420: detachable microphone

422: Sound Receiver

424, 426, 428: groove structure

430: Audio control box

432: Volume adjustment button

434: Microphone mute adjustment button

436: Optical fiber connection terminal

438: toggle switch

444: Universal Serial Bus (USB) cable

444: Connection terminal

510: Audio control box

512: connection interface

514: Optical fiber connection interface conforming to S/PDIF format

515: optical fiber

516: Light-emitting diode (LED) display area

518: Function adjustment area

518a and 518b: volume adjustment buttons

518c: Microphone mute adjustment button

520: Operation mode switching area

530: decoder

532: line

540: Amplifier

Detailed ways

The utility model provides a multi-channel digital sound field earphone device, which comprises a pair of multi-channel earphones, an audio control box and a universal serial connection bus (USB) connecting line.

The multi-channel digital sound field earphone device proposed by the utility model is applicable to a 5.1-channel audio source connected to a 5.1-channel audio source player output by a Digital Versatile Disc (Digital Versatile Disc, hereinafter referred to as "DVD") player , or connect to a stereo (Stereo) source.

The audio source received by the audio control box can switch the operation mode, including six channels (6CH) and two channels (2CH). When switching to 6CH, the audio source signal is a 5.1-channel audio source, and the signals of different channels can be sent to the front main channel speaker, subwoofer, center channel speaker and surround channel in the multi-channel earphone respectively. trumpet. In addition, if switched to 2CH, this audio control box will send the signal to the multi-channel earphone. But different from the traditional design, this audio control box will transmit the signal to the combination of the front main channel speaker and the subwoofer or other multiple speakers at the same time, so that it has different sound field effects instead of pure transmission to the front main channel speakers.

This audio control box also has Dolby Digital Live (Dolby Digital Live) encoding circuit and DTS CONNECT design. This Dolby Digital Live (DDL) and DTS CONNECT is a real-time (Real time) encoding technology, which can encode any audio source signal into a digital signal in Dolby AC3 and DTS CONNECT format, and output it to the External decoder to achieve the effect of AC3 surround sound field at any time. This kind of Dolby DigitalLive and DTS CONNECT is most commonly used in media playback with interactive modes, such as TV game consoles and all audio formats of PCs. Because when the TV game console enters the game mode, it uses the digital signal (that is, stereo) encoded by Pulse Code Modulation (PCM) to the decoder, so the sound effect generated in the game can only be limited. In stereo effect. In this audio control box, the Dolby Digital Live and DTSCONNECT encoding circuits can convert all audio source signals into digital signals with Dolby AC3 and DTSCONNECT formats, and transmit them through the audio control box. The interface, such as an optical fiber connection interface in S/PDIF format, is transmitted to a Dolby decoder through an optical fiber connection line conforming to the S/PDIF specification to generate, for example, a Dolby sound field effect or a DTS (Digital Theater System, DTS) sound field effect. DTS is a kind of multi-channel audio display, and is currently widely used in 5.1-channel audio.

The above-mentioned S/PDIF format, full name Sony/Philips Digital Interface, as the name implies, is a specification jointly formulated by Sony and Philips. There are two ways to connect S/PDIF. The first one uses RCA unbalanced connector and uses a 75-ohm signal line, and the other uses optical fiber. S/PDIF is the digital signal that most commonly appears in household specifications, such as MD (MiniDisk) digital recording and playback, DVD surround digital output, etc. In this embodiment, the S/PDIF format is used for the optical fiber connection port and the optical fiber signal cable is used for output.

The multi-channel digital sound field earphone device proposed in this embodiment, the multi-channel earphone adopted has the ability to make the multi-channel earphone of the extended sound room still have a thick and saturated sound field under the minimum volume, and multi-sound channel surround sound effects. The headphone body includes a main chamber support frame or partition within the chamber body. A front chamber mixing chamber, a main sound chamber and a rear sound chamber are formed in the chamber main body. The main loudspeaker is positioned on the supporting frame or partition of the main sound room, and a sub-speaker is placed behind the main body of the chamber to form a rear sound chamber with the supporting frame of the main sound room. Through the space in the main body of the chamber, the characteristics of a composite sound field formed between the front chamber mixing chamber, the main sound chamber and the rear sound chamber formed in the earphone structure are adjusted accordingly, and it is used as the output of the multi-channel earphone.

3A-3D below show the front side view, rear side view, front view and back view of the multi-channel earphone structure 300 used in the multi-channel digital sound field earphone device of this embodiment, respectively.

Referring to FIGS. 3A-3D , the multi-channel earphone structure 300 at least includes a chamber body 310 , a main speaker 340 and a sub-speaker 350 , and chamber extension tubes 320 and 330 . The chamber body 310 includes a front mixing chamber part 312 and a rear sound chamber part 314 . There is a main sound room support frame 313 between the inside of the front cavity mixing room part 312 and the rear sound room part 314 . There are several holes 315A-315D on the main sound room support frame 313, wherein the holes 315A and 315B are used to transmit the sound field generated by the rear sound room part 314 to the front cavity mixing room part 312, so that the front cavity mixing room part The sound field is mixed in 312 and transmitted to the listener in 360 direction. The main speaker 340 is located between several holes 315A-315D on the main sound room support frame 313, and the front cavity mixing room part 312 has a certain depth in the direction 360 towards the listener, so as to form a certain space as the front cavity In the mixing room, this depth is designed according to the requirements of the multi-channel headphone structure 300 .

The rear sound chamber portion 314 forms a space between the main sound chamber support frame 313 and the protruding portion 317 on the rear side of the chamber main body 310 to form the rear sound chamber cavity. The sub-speaker 350 is fixed on the protruding portion 317 at the rear side of the chamber main body 310 .

Around the chamber main body 310, there are chamber extension pipes 320 and 330, and the sound field outlets thereof are holes 315C and 315D respectively facing the main sound chamber support frame 313 in this embodiment. The size of the independent sound chamber space formed by the main sound chamber support frame 313 in the holes 315C and 315D is a factor that needs to be considered in designing the main cavity structure of the earphone proposed by the utility model, and the width 319C and 319D are also Design features. In the independent sound chambers formed in the holes 315C and 315D, the generated sound field is sent to the front cavity mixing room part 312, so that the sound field is mixed in the front cavity mixing room part 312, and in the direction of 360 sent to the listener.

This can be changed by calculating the space allocation in the chamber main body 310 according to the characteristics of the loudspeaker, that is, the size can be adjusted according to the space of the main sound room, the rear sound room and the front mixing room. The outermost edges of the chamber extension tubes 320 and 330 can optionally be configured with a sub-speaker, such as the sub-speakers 325 and 335 in the figure. Certainly, in an embodiment, the outermost edges of the chamber extension pipes 320 and 330 may not be provided with sub-speakers, and are only used as an extension of the cavity space of the main sound chamber. In the cavity of the main sound chamber, the extension tubes 320 and 330 of the cavity can be arranged in a proper spatial structure according to the signal characteristics, that is, the space in the cavity of the main sound chamber can be adjusted, so that the depth and breadth of the sound field can be increased. Of course, in another embodiment, the sound field outlets of the chamber extension pipes 320 and 330 may also face the rear sound chamber, which can be adjusted according to design requirements.

The main body of the chamber 310 and the sound chamber extending the sound field constitute the main body of the multi-channel earphone structure 300, and proper space allocation is given in the main sound chamber so that it and the chamber extension pipes 320 and 330 extend to the outside of the chamber main body. The sound field space formed by the sound chamber (such as sub-speakers 325 and 335) and the front and rear speakers (main speaker 340 and sub-speaker 350) in the chamber forms an appropriate amount of spatial sound field. It can mix and match with the tuning material placed in the front mixing room in the main cavity, and form a saturated and well-defined sound field.

The multi-channel earphone structure 300 mentioned in this embodiment can be applied to a multi-channel audio source output by a DVD player. For example, the main speaker 340 can be used as a front main channel speaker, the sub speaker 350 can be used as a subwoofer, and the center channel speaker and surround channel speakers can be the sub speakers 325 and 335 located in the chamber extension tubes 320 and 330 respectively. After the above-mentioned multi-channel earphone structure 300 is covered by the shell, it can become earphones on the left and right sides of the multi-channel earphone, so as to be provided for users to listen to.

FIG. 3E is a partial cross-sectional view and an exploded view showing the multi-channel earphone structure 300 of the above-mentioned embodiment of the present invention, and the same components are denoted by the same symbols. The multi-channel earphone structure 300 at least includes a chamber main body 310 , a main speaker 340 and a sub speaker 350 , and chamber extension tubes 320 and 330 . The chamber main body 310 includes a front chamber mixing chamber part 312 and a rear sound chamber chamber part 314, and the independent sound chambers in the holes 315C and 315D formed by the chamber extension pipes 320 and 330 according to the signal characteristics for spatial structure arrangement. room part. From this figure, it can be clearly seen that the sound field outlets of the chamber extension pipes 320 and 330 are respectively facing the spaces formed in the holes 315C and 315D of the main sound chamber support frame 313, thus forming independent sound chambers that can be adjusted in size.

For the multi-channel digital sound field headphone device proposed by the present invention, please refer to FIGS. 4A to 4G , wherein FIGS. 4D to 4G are side and front structural diagrams of the audio control box. The multi-channel digital sound field earphone device 400 includes a pair of multi-channel earphones 410 and 412 and a fixed unit 405 connected to each other, and also includes a detachable microphone 420 and an audio control box 430 . The structures of the earphones in the multi-channel earphones 410 and 412 can adopt the structures shown in FIGS. 3A-3D , and are respectively connected to the audio control box 430 via the connection line 411 . The fixing unit 405 can hang the multi-channel earphones 410 and 412 above the listener's head, and make the multi-channel earphones 410 and 412 close to the listener's ears. The fixing unit 405 has a connecting line inside, which can transmit signals to the multi-channel earphones 410 and 412 synchronously.

The audio control box 430 includes a volume adjustment button 432 and a microphone mute adjustment button 434 in the operation function control area, and also includes a universal serial connection bus (USB) connection interface 437 that can be connected to a universal serial connection bus (USB) connection line 440 The connecting terminal 444 is plug-in connected. In addition, the audio control box 430 further includes a fiber connector receiver (Fiber Connector Receiver) 436 conforming to the S/PDIF standard for outputting digital signals in Dolby AC3 and DTS CONNECT formats. In addition, the audio control box 430 further includes a 6CH and 2CH switching switch 439 for switching the operation mode of the audio control box 430 .

In one embodiment, the installation and removal methods of the multi-channel earphone 410 and the detachable microphone 420 are shown in FIG. 4B and FIG. 4C . In the multi-channel earphone 410 , there are two chamber extension pipes 412 and 414 , and there is also a connection portion 416 of the fixing unit 405 . In addition, there is a contact connection area 418 on the side of the multi-channel earphone 410, and a metal guide plate or a protruding electric electrode plate can be arranged on this area to contact with the electrical connection area inside the microphone 420 to achieve electrical connection. connected, the transmission of the sound signal sensed by the microphone 420 can be performed.

In the multi-channel digital sound field headphone device proposed by the present invention, the design of the microphone is not limited to those shown in FIGS. 4B and 4C . The connecting area 418 can also use a slot-type connection, for example, the contact connecting area 418 is a conductive slot, and the microphone 420 can use a design such as a hose-type microphone, and the connecting end is directly inserted into the plug of the connecting area 418. Groove, and complete the electrical connection.

In another embodiment, the design of the microphone can be configured on the connection line 411 connected to the audio control box 430, which is common in the design of earphones with a microphone. In another embodiment, the connection slot of the microphone can be placed on the audio control box 430, which is still within the scope of the present utility model.

Please refer to FIG. 4B , the detachable microphone 420 has a sound receiver 422 and a connecting body. Groove structures 426 and 428 of 414 . During installation, the groove structures 424 , 426 and 428 of the microphone 420 are aligned with the chamber extension tubes 412 , 414 and the connecting portion 416 of the multi-channel earphone 410 and then fixed. In addition, referring to FIG. 4C , if the microphone 420 is not used, the microphone 420 can be pulled away from the multi-channel earphone 410 to remove it.

For the multi-channel digital sound field earphone device of the present invention, the structural diagram of a specific embodiment of the audio control box and its application are shown in FIGS. 5A-5C .

As shown in Figure 5A, the audio control box 510 includes a universal serial connection bus (USB) connection interface 512, an optical fiber connection interface 514 conforming to the S/PDIF format, a light emitting diode (LED) display area 516 for indicating status, Function adjustment area 518 and operation mode switching area 520 .

The USB connection interface 512 can be connected to a USB connection cable 513 to obtain a sound source signal. The USB cable 513 can be connected to a USB compatible interface such as a personal computer or a video game console. The optical fiber connection interface 514 conforming to the S/PDIF format is used to output digital signals with Dolby AC3 and DTSCONNECT formats. The light-emitting diode (LED) display area 516 can display the current operating status of the audio control box 510. For example, the operating status of the power on is displayed by a blue LED, and the microphone mute status (MUTE) can be displayed by a red LED.

There is an operation function control area 518, which may include, for example, volume adjustment buttons 518a and 518b, and a microphone mute adjustment button 518c. The operation mode switching area 520 is switched by the user according to the acquired audio signal, for example, there are 6CH and 2CH switching options.

The optical fiber connection interface 514 of the S/PDIF format of the audio control box 510, as shown in Figure 5C, can be connected to the decoder 530 via the optical fiber 515, and after decoding, it is transmitted to the amplifier through the line 532 with multi-channel signal transmission. 540 to amplify the signal and send it to the audio equipment.

As mentioned above, the audio control box 510 has the design of Dolby Digital Live (Dolby Digital Live) encoding circuit and DTS CONNECT, that is, it has Dolby Digital Live (Dolby Digital Live) and DTS CONNECT encoding IC inside. This Dolby Digital real-time encoding and DTS CONNECT encoding IC can encode any audio source signal into a digital signal of Dolby AC3 and DTS CONNECT format in real time, and the optical fiber connection interface 514 outputs the signal to the decoder 530 through the optical fiber 515 to achieve It can achieve the effect of AC3 surround sound field at any time. That is to say, when the host 501, such as a video game console, enters the game mode, the output PCM digital signal can be encoded in real time through the loop design in the audio control box 510, and then sent to the decoder 530, and the decoder 530 The 530 can generate signals such as Dolby sound field effect or DTS (Digital Theater System, DTS) sound field effect.

Claims (24)

1. a multichannel numeral sound field Headphone device is characterized in that comprise: a pair of multi-sound-channel earphone is connected in fixed cell both sides; The message control box, be electrically connected to this to multi-sound-channel earphone, this message control box has a general serial connecting bus connecting interface, an optical fiber connecting interface and switches switch, wherein this optical fiber connecting interface meets the digital signal of S/PDIF specification in order to output, and this diverter switch is in order to switch the operator scheme of this multichannel numeral sound field Headphone device; And general serial connecting bus connecting line, one end is connected to this message control box via this general serial connecting bus connecting interface, the other end is connected to an outside source of sound via general serial connecting bus splicing ear, and multi-sound-channel earphone is sounded by this via this message control box, or via the loop design signal encoded immediately become meet this S/PDIF specification digital signal via this optical fiber connecting interface output.

2. multichannel as claimed in claim 1 numeral sound field Headphone device is characterized in that, the operator scheme of this multichannel numeral sound field Headphone device comprise six passages and two channel patterns one of them.

3. multichannel numeral sound field Headphone device as claimed in claim 2, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device was this six channel pattern, this message control box transmission multichannel source of sound was passed to this and multi-sound-channel earphone is sent the surrounding sound field with multichannel.

4. multichannel numeral sound field Headphone device as claimed in claim 2, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device is this two channel pattern, this message control box transmits stereo source of sound and gives this to multi-sound-channel earphone, and by this at least two loud speakers in multi-sound-channel earphone is sounded simultaneously.

5. multichannel numeral sound field Headphone device as claimed in claim 4, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device is this two channel pattern, this message control box transmits stereo source of sound and gives this to multi-sound-channel earphone, and by this preposition main sound channel loudspeaker and supper bass loudspeaker in multi-sound-channel earphone are sounded simultaneously, make it have different sound field effects.

6. multichannel numeral sound field Headphone device as claimed in claim 1 is characterized in that, more comprises a microphone, constitutes with this message control box and leads to.

7. multichannel numeral sound field Headphone device as claimed in claim 6 is characterized in that this microphone is removable formula design, at this multi-sound-channel earphone is had a contact join domain, is electrically connected in order to reach with this microphone.

8. multichannel numeral sound field Headphone device as claimed in claim 6 is characterized in that this microphone is positioned on this connecting line to multi-sound-channel earphone and this message control box.

9. multichannel as claimed in claim 6 numeral sound field Headphone device is characterized in that, this microphone can a connecting line inserts on the tie point of this message control box and finishes electrical connection.

10. a multichannel numeral sound field Headphone device is characterized in that comprise: a pair of multi-sound-channel earphone is connected in fixed cell both sides; The message control box, be electrically connected to this to multi-sound-channel earphone, this message control box has a connecting interface and the switching switch that a general serial connecting bus connecting interface, meets the S/PDIF specification, wherein the connecting interface of this S/PDIF specification has the digital signal of Dolby AC3 and DTS CONNECT form in order to this S/PDIF specification output, and this diverter switch is in order to switch the operator scheme of this multichannel numeral sound field Headphone device; And general serial connecting bus connecting line, one end is connected to this message control box via this USB connecting interface, the other end is connected to an outside source of sound via general serial connecting bus splicing ear, and multi-sound-channel earphone is sounded by this via this message control box, or this connecting interface output that meets the S/PDIF specification has the digital signal of Dolby AC3 and DTS CONNECT form after via the loop design signal being encoded immediately.

11. multichannel numeral sound field Headphone device as claimed in claim 10 is characterized in that this connecting interface that meets the S/PDIF specification is to be connected to an outside decoder via an optical fiber.

12. multichannel as claimed in claim 10 numeral sound field Headphone device is characterized in that, the operator scheme of this multichannel numeral sound field Headphone device comprise six passages and two channel patterns one of them.

13. multichannel numeral sound field Headphone device as claimed in claim 12, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device was this six channel pattern, this message control box transmission multichannel source of sound was passed to this and multi-sound-channel earphone is sent the surrounding sound field with multichannel.

14. multichannel numeral sound field Headphone device as claimed in claim 12, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device is this two channel pattern, this message control box transmits stereo source of sound and gives this to multi-sound-channel earphone, and by this at least two loud speakers in multi-sound-channel earphone is sounded simultaneously.

15. multichannel numeral sound field Headphone device as claimed in claim 14, it is characterized in that, when the operator scheme of this multichannel numeral sound field Headphone device is this two channel pattern, this message control box transmits stereo source of sound and gives this to multi-sound-channel earphone, and by this preposition main sound channel loudspeaker and supper bass loudspeaker in multi-sound-channel earphone are sounded simultaneously, make it have different sound field effects.

16. multichannel numeral sound field Headphone device as claimed in claim 10 is characterized in that, more comprises a microphone, constitutes with this message control box and leads to.

17. multichannel numeral sound field Headphone device as claimed in claim 16 is characterized in that this microphone is removable formula design, at this multi-sound-channel earphone is had a contact join domain, is electrically connected in order to reach with this microphone.

18. multichannel numeral sound field Headphone device as claimed in claim 16 is characterized in that this microphone is positioned on this connecting line to multi-sound-channel earphone and this message control box.

19. multichannel as claimed in claim 16 numeral sound field Headphone device is characterized in that, this microphone can a connecting line inserts on the tie point of this message control box and finishes electrical connection.

20. multichannel numeral sound field Headphone device as claimed in claim 10, it is characterized in that, this multi-sound-channel earphone comprises: headset main body, main loudspeaker and one first sub-loud speaker and at least one pair of chamber extension, this headset main body comprises a chamber body and a keynote chamber bracing frame, wherein this keynote chamber bracing frame has most holes, wherein forms an ante-chamber MIXING STUDIO, keynote chamber and tone chamber, back in this chamber body; This main loudspeaker and one first sub-loud speaker, wherein this main loudspeaker is positioned on this keynote chamber bracing frame, and this first sub-loud speaker places on the protuberance of this chamber body, and and form this tone chamber, back between this keynote chamber bracing frame; And this at least one pair of chamber extension, be disposed at this chamber body outside, and has an opening respectively towards this chamber body inside, to form the part of this keynote chamber, space by this chamber body inner space and this chamber extension, adjust formed this ante-chamber MIXING STUDIO in this Headphone structure, keynote chamber and the back complex tone field characteristic that forms between the tone chamber according to this, and as the output of this multi-sound-channel earphone.

21. multichannel numeral sound field Headphone device as claimed in claim 20 is characterized in that, wherein those hole parts of this keynote chamber bracing frame were in order to being sent to this ante-chamber MIXING STUDIO to form this complex tone field characteristic by the formed sound field in tone chamber, back.

22. multichannel numeral sound field Headphone device as claimed in claim 20, it is characterized in that those hole parts of this keynote chamber bracing frame are in order to be sent to this ante-chamber MIXING STUDIO to form this complex tone field characteristic to the chamber extension at the inner formed independent sound field of this chamber body with this.

23. multichannel numeral sound field Headphone device as claimed in claim 20, it is characterized in that, this is to disposing one second sub-loud speaker and one the 3rd sub-loud speaker respectively in the chamber extension, the sound field that is produced forms independent sound field in this chamber body inner space respectively.

24. multichannel numeral sound field Headphone device as claimed in claim 20, it is characterized in that, this main loudspeaker is as preposition main sound channel loudspeaker of this 5.1 multichannel source of sound, this first sub-loud speaker can be used as supper bass loudspeaker, and this second sub-loud speaker and the 3rd sub-loud speaker are respectively as center channel loudspeaker and surround channel loudspeaker.

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