CN205160773U - Audio device - Google Patents
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- CN205160773U CN205160773U CN201520935416.2U CN201520935416U CN205160773U CN 205160773 U CN205160773 U CN 205160773U CN 201520935416 U CN201520935416 U CN 201520935416U CN 205160773 U CN205160773 U CN 205160773U
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Abstract
The utility model provides an audio device, it includes: the microphone interface, it is used for supplying the audio device external microphone, the music input interface, it is used for supplying the external sound source equipment of audio device, the circuit is listened to the microphone signal, its with microphone electrical connection interface is used for listening whether the microphone interface has audio signal to get into, and the microphone interface sends when having audio signal to get into and predetermines the signal, and the voice circuit that disappears, its with music input electrical connection interface is used for the response the detecting unit's the signal of predetermineeing comes oneself music input interface type's music signal carries out the voice release treatment. When audio device talks the user, can enough guarantee still to exist in the environment pleasing background music, interference that the singing sound of having avoided singer among the music signal that again can be fine caused user's the sound of speaking, very big promotion user's use experience.
Description
Technical field
The utility model relates to a kind of audio frequency apparatus, particularly relates to a kind of audio frequency apparatus with the former sound function that disappears.
Background technology
No matter be for the performance of specialty or for home entertaining, in the voice datas such as song, the elimination of voice is a problem anxious to be resolved, such as, only be there is the voice data of background music in the voice in the voice datas such as elimination song, and then in must deducing for various specialty or the song of sparetime, and do not need to make extraly the voice data of music of only having powerful connections.
But, the realization of existing voice Processing for removing needs user to carry out complicated process to the voice data that song etc. contains voice, and for a large amount of domestic consumers, the voice Processing for removing of current played songs cannot be realized because it does not have professional skill.
Utility model content
In view of this, the utility model provides a kind of audio frequency apparatus that can solve the problem real in necessary.
A kind of audio frequency apparatus, is characterized in that, comprising: microphone interface, and it is for supplying described audio frequency apparatus external microphone; Music input interface, it is for supplying the external audiogenic device of described audio frequency apparatus; Microphone signal circuit for detecting, whether it is electrically connected with described microphone interface, have audio signal to enter, and send preset signals when described microphone interface has audio signal to enter for detecting described microphone interface; And the voice circuit that disappears, it is electrically connected with described music input interface, carries out voice Processing for removing for the preset signals responding described detecting unit to the music signal from described music input interface input.
Preferably, the described voice circuit that disappears comprises fade in treatment circuit and audio frequency of audio frequency and to fade out treatment circuit, the described audio frequency treatment circuit that fades in comprises the people's sound module that disappears, the described people's of disappearing sound module has signal input part and signal output part, described audio frequency treatment circuit and the audio frequency treatment circuit that fades out that fades in is connected electrically between described signal input part and signal output part in parallel, described signal input part is electrically connected with described music input interface, enter fade in treatment circuit and audio frequency of described audio frequency from the music signal of described music input interface input respectively by described signal input part to fade out treatment circuit, described audio frequency fades in treatment circuit for disappearing people's sonication fading in process to the audio signal after process to described music signal, described audio frequency fades out treatment circuit for process of synchronously fading out to described music signal, export after described signal output part carries out Signal averaging via described audio frequency treatment circuit and the audio frequency audio signal after processing circuit processes of fading out of fading in respectively.
Preferably, described music input interface is at least integrated with L channel and R channel.
Preferably, the described people's of disappearing sound module comprises one first audio processing modules, described first audio processing modules comprises anti-phase addition arithmetic element, filter unit and compensating unit, described anti-phase addition arithmetic element be connected with the described music input interface signal of telecommunication carry out anti-phase addition computing with the music signal inputted L channel and the R channel via described music input interface after export, described filter unit be connected with the described music input interface signal of telecommunication carry out filtering with the music signal inputted L channel and the R channel via described music input interface after export, described compensating unit is connected with described anti-phase addition arithmetic element and the filter unit signal of telecommunication respectively and exports after the voice data exported by described anti-phase addition arithmetic element and the voice data to be exported by described filter unit are carried out overlap-add procedure.
Preferably, the described people's of disappearing sound module comprises one second audio processing modules, described second audio processing modules comprises quiet unit and audio reproduction unit, described quiet unit is electrically connected between described music input interface and described audio reproduction unit and performs quiet with the preset signals according to described microphone signal circuit for detecting to the L channel in described music input interface or R channel, described audio reproduction unit is electrically connected between described signal input part and described signal output part, for obtaining the voice data not being muted the quiet sound channel of unit inputted by described music input interface, and this voice data is reappeared in quiet sound channel and exports in the sound channel that described signal output part is corresponding.
Preferably, the described people's of disappearing sound module comprises one the 3rd audio processing modules, described 3rd audio processing modules is electrically connected between signal input part and signal output part, 3rd audio processing modules is used for extracting according to the preset signals of described microphone signal circuit for detecting the voice data inputted by the L channel of music input interface or R channel, and is exported via the L channel of signal output part and R channel by the voice data extracted.
Preferably, the described people's of disappearing sound module comprises one the 4th audio processing modules, disappear between the signal input part of people's sound module and signal output part described in 4th audio processing modules is electrically connected on, to make the music signal by inputting in music input interface export via signal output part according to the preset signals of described microphone signal circuit for detecting.
Preferably, described microphone interface is cable microphone interface or wireless microphone interface, described cable microphone interface is at least one in TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, OTGUSB interface, and described wireless microphone interface is at least one in Bluetooth signal receiver module, WIFI signal receiver module, FM signal receiving module or IR signal reception module.
Preferably, described music input interface is wireline audio interface or wireless audio interface, described wireline audio interface is at least one in TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, the existing audio interface of OTGUSB interface, and described wireless audio interface is at least one in Bluetooth signal receiver module, WIFI signal receiver module, FM signal receiving module or IR signal reception module.
Preferably, described audio frequency apparatus is also provided with audio signal output interface and/or monitors interface.
Compared with prior art, the described audio frequency apparatus that present embodiment provides, its at least tool have the following advantages: (1) is by arranging microphone signal circuit for detecting and the people's sound module that disappears, and both are carried out organic connections, make user when the described audio frequency apparatus using present embodiment to provide, can access by described music input interface the music signal sung with singer to play, when user is undertaken singing or talking by microphone, in response to the testing result of described microphone signal circuit for detecting, the people's sound module that disappears described in described audio frequency apparatus utilizes to disappear people's sonication to the music signal from described music input interface input, can reach like this when user talks, can either ensure still there is pleasing background music in environment, the interference that the speak sound of performance sound to user that can well avoid again singer in music signal causes, improve the experience of user greatly, (2) by arrange fade in treatment circuit and audio frequency of audio frequency in voice circuit and to fade out treatment circuit disappearing, when making user use microphone to talk, music signal through the people's sonication that disappears can produce in the mode of fading in, and original music signal can disappear in the mode of fading out, by such mode, make voice eliminate front and back can seamlessly transit, improve the experience of user greatly, (3) for different synthesis, the transmission means of singer's sound in existing music signal and background music sound, provide at least four kinds of voice schemes that disappear, music signal from the input of described music input interface is disappeared people's sonication, ensure that the reliability of product fully.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, be briefly described to the accompanying drawing used required in execution mode below, apparently, accompanying drawing in the following describes is only execution modes more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained from these accompanying drawings.
The construction module figure of the audio frequency apparatus that Fig. 1 provides for the utility model execution mode.
Fig. 2 is the construction module figure of the audio frequency apparatus that another embodiment of the utility model provides.
Fig. 3 is the structured flowchart of the first audio processing modules in the utility model embodiment;
Fig. 4 is the structured flowchart of the second audio processing modules in the utility model embodiment;
Embodiment
Below in conjunction with the accompanying drawing in the utility model execution mode, the technical scheme in the utility model execution mode is clearly and completely described.The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Please refer to Fig. 1, the audio frequency apparatus 100 that the utility model execution mode provides, it comprises microphone interface 10, music input interface 20, microphone signal circuit for detecting 30 and the voice circuit 40 that disappears.
Described microphone interface 10 is for supplying described audio frequency apparatus 100 external microphone equipment, and in the present embodiment, described microphone interface can be cable microphone interface or wireless microphone interface.Cable microphone interface can be at least one in TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, the existing audio interface of OTGUSB interface.Wireless microphone interface can be at least one in Bluetooth signal receiver module, WIFI signal receiver module, FM signal receiving module or IR signal reception module.
Described music input interface 20 is for supplying the external audiogenic device of described audio frequency apparatus 100.Same, in the present embodiment, described music input interface 20 also can be wireline audio interface or wireless audio interface.Wireline audio interface can be at least one in TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, the existing audio interface of OTGUSB interface.Wireless audio interface can be at least one in Bluetooth signal receiver module, WIFI signal receiver module, FM signal receiving module or IR signal reception module.
Preferably, in the present embodiment, described music input interface 20 is at least integrated with L channel and R channel, thinks that audio frequency apparatus provides the input of three-dimensional sound.
Whether described microphone signal circuit for detecting 30 is electrically connected with described microphone interface 10, have audio signal to enter, and send preset signals when described microphone interface 10 has audio signal to enter for detecting described microphone interface 10.
Whether in the present embodiment, described microphone signal circuit for detecting 30 comprises ADC chip (modulus conversion chip), utilize described ADC chip to have audio signal to enter to detect described microphone interface 10.Understandable, in the utility model, described microphone signal circuit for detecting 30 is not limited to aforesaid way, its can also be in this area commonly use other for detecting the mode of audio signal, whether to detect described microphone interface 10 have audio signal enter, these modes all can use as the described microphone signal circuit for detecting 30 in present embodiment if such as described microphone interface 10 being carried out to the modes such as signal sampling, the voltage detecting microphone interface 10 or electric current.
The described voice circuit 40 that disappears is electrically connected with described music input interface 20, carries out voice Processing for removing for the preset signals responding described microphone signal circuit for detecting 30 to the music signal inputted from described music input interface 20.
The described voice circuit 40 that disappears has signal input part 401 and signal output part 402, described signal input part 401 is electrically connected with described music input interface 20, for being received from the music signal of described music input interface 20 input, described signal output part 402 is for exporting for the audio signal after the described voice circuit 40 that disappears processes.
In the present embodiment, corresponding to described music input interface 20, described in the disappear signal input part 401 of voice circuit 40 and signal output part 402 be also at least integrated with L channel and R channel, to be used for adaptive described music input interface 20.
Pass through said structure, user is when the described audio frequency apparatus 100 using present embodiment to provide, can access by described music input interface 20 music signal sung with singer to play, when user needs to be undertaken singing or talking by microphone, the voice circuit 40 that disappears described in described audio frequency apparatus 100 utilizes to disappear people's sonication to the music signal inputted from described music input interface 20, can reach like this when user talks, can either ensure still there is pleasing background music in environment, the interference that the speak sound of performance sound to user that can well avoid again singer in music signal causes, improve the experience of user greatly.
Further, for Consumer's Experience, suddenly signal switching always brings bad impact to user, therefore, the discomfort acoustically that sudden change in order to avoid music signal causes, as shown in Figure 2, in the present embodiment, preferably, the described voice circuit 40 that disappears comprises fade in treatment circuit 41 and audio frequency of audio frequency and to fade out treatment circuit 42, the described audio frequency treatment circuit 41 that fades in comprises the people's sound module 411 that disappears, described audio frequency treatment circuit 41 and the audio frequency treatment circuit 42 that fades out that fades in is connected electrically between described signal input part 401 and signal output part 402 in parallel.By above-mentioned setting, the music signal inputted from described music input interface 20 enters fade in treatment circuit 41 and audio frequency of described audio frequency respectively by described signal input part 401 and to fade out treatment circuit 42, described audio frequency fades in treatment circuit 41 for disappearing people's sonication fading in process to the audio signal after process to described music signal, described audio frequency fades out treatment circuit 42 for process of synchronously fading out to described music signal, afterwards, respectively via described audio frequency fade in treatment circuit 41 and audio frequency fade out treatment circuit 42 process after audio signal export after described signal output part 402 carries out Signal averaging.
Understandable, in aforesaid way, described audio frequency fade in treatment circuit 41 and audio frequency fade out the fading in for the treatment of circuit 42, process of fading out all can by realizing by relevant fading in, on audio processing chip that Processing Algorithm of fading out is loaded into this areas such as FPGA, DSP and ARM commonly uses.
Above-mentionedly to fade in by arranging, fade out treatment circuit, when user uses microphone to talk, music signal through the people's sonication that disappears can produce in the mode of fading in, and original music signal can disappear in the mode of fading out, by such mode, make voice eliminate front and back can seamlessly transit, improve the experience of user greatly.
In general, the music signal for singing is roughly divided into three kinds, and namely L channel is voice, and R channel is the music signal of background sound; L channel is background sound, and R channel is the music signal of voice; L channel and R channel all contain voice and background sound, but voice in L channel and background sound are relative to the voice in R channel and the slightly differentiated music signal of background sound.
Therefore, for different genres of music signal, the voice circuit 40 that disappears described in present embodiment will arrange different processing modes, and wherein, each processing mode all has the corresponding audio data block side of execution processing mode, eliminate performance to provide powerful voice.
In one embodiment, described in the disappear people's sound module that disappears of voice circuit 40 comprise the first audio processing modules 43, as shown in Figure 3, the first audio processing modules 43 comprises anti-phase addition arithmetic element 431, filter unit 432 and compensating unit 433.
Anti-phase addition arithmetic element 431 is connected with described signal input part 401 signal of telecommunication, to export after carrying out anti-phase addition computing via the L channel of music input interface 20 and the music signal of R channel input.
Filter unit 432 be connected with described signal input part 401 signal of telecommunication carry out filtering with the music signal inputted L channel and the R channel via music input interface 20 after export.
Compensating unit 433 is connected with anti-phase addition arithmetic element 431 and filter unit 432 signal of telecommunication respectively and exports after the voice data exported by anti-phase addition arithmetic element 431 and the voice data to be exported by filter unit 432 are carried out overlap-add procedure.
By the first audio processing modules as above, to all contain voice and background sound by L channel and R channel, but voice in L channel and background sound carry out voice Processing for removing relative to the voice in R channel and the slightly differentiated music signal of background sound.
In anti-phase addition arithmetic element 431 while voice Processing for removing is carried out to music signal, filter unit 432 also carries out the extraction of music signal medium and low frequency part simultaneously according to the frequency preset and yield value to the music signal received, and export compensating unit 433 to.
Music signal due to anti-phase addition arithmetic element 431 pairs of left and right acoustic channels has carried out anti-phase addition computing and have lost background sound too while elimination voice, therefore, needs compensating unit 433 to compensate it, to ensure that it possesses comparatively good news matter.
In another embodiment, the people's sound module that disappears of voice circuit 40 of disappearing described in comprises one second audio processing modules 44.As shown in Figure 4, the second audio processing modules 44 comprises quiet unit 441 and audio reproduction unit 442.
Quiet unit 441 is electrically connected between described signal input part 401 and audio reproduction unit 442, performs quiet with the preset signals according to described microphone signal circuit for detecting 30 to the L channel in music input interface 20 or R channel.
Audio reproduction unit 442 is electrically connected between described signal input part 401 and described signal output part 402, for obtaining the voice data not being muted the quiet sound channel of unit 441 inputted by described music input interface 20, and this voice data is reappeared in quiet sound channel and exports in the sound channel of described signal output part 402 correspondence.
Export voice by the second audio processing modules 44 pairs of L channels, R channel exports the music signal of background sound, or R channel exports voice, and the music signal that L channel exports background sound carries out voice Processing for removing, and exports via described signal output part 402.
In another embodiment, the people's sound module that disappears of the described voice circuit 40 that disappears comprises one the 3rd audio processing modules, 3rd audio processing modules is electrically connected between signal input part 401 and signal output part 402,3rd audio processing modules is used for extracting according to the preset signals of described microphone signal circuit for detecting 30 voice data inputted by the L channel of music input interface 20 or R channel, and is exported via the L channel of signal output part 402 and R channel by the voice data extracted.
In the present embodiment, voice is exported to L channel, R channel exports the music signal of background sound, or, R channel exports voice, L channel exports the music signal of background sound, and carry out the extraction of voice data for the L channel or R channel that export background sound by the 3rd audio processing modules, the voice data extracted is the voice data corresponding to background sound.
After completing the voice data in music input interface 20 corresponding to background sound and extracting, the voice data extracted is exported via the L channel in signal output part 402 and R channel, now, L channel and R channel in signal output part 402 is made all to export background sound.
Further, for the voice that sound channel arbitrary in music input interface 20 exports, identify by artificial or default algorithm, then perform extraction and the output of voice data via the 3rd audio processing modules.
In addition, the people's sound module that disappears of the described voice circuit 40 that disappears further comprises one the 4th audio processing modules, disappear between the signal input part 401 of voice circuit 40 and signal output part 402 described in 4th audio processing modules is electrically connected on, to make according to the preset signals of described microphone signal circuit for detecting 30 to be exported via signal output part 402 by the music signal of input in music input interface 20.
That is, if all cannot eliminate the voice in music signal via the first audio processing modules 43, second audio processing modules 44 and the 3rd audio processing modules, then illustrate for present video equipment, voice in music signal cannot be eliminated, therefore, no longer voice Processing for removing will be carried out to it.
Based on the type of the music that described music input interface 20 inputs, in elimination voice, present embodiment provide at least above-mentioned four kinds of modes and processes the music signal inputted from described music input interface 20, ensure that the reliability of product fully.Certainly, in the art, can also change in aforesaid way for the processing mode eliminating voice, and these changes are also the described audio frequency apparatuses provided for present embodiment certainly.
Understandable, in the above-mentioned audio frequency apparatus that present embodiment provides, also comprise audio signal output interface further and/or to monitor in the audio frequency apparatus such as interface the audio interface commonly used.
Compared with prior art, the described audio frequency apparatus that present embodiment provides, its at least tool have the following advantages: (1) is by arranging microphone signal circuit for detecting and the people's sound module that disappears, and both are carried out organic connections, make user when the described audio frequency apparatus using present embodiment to provide, can access by described music input interface the music signal sung with singer to play, when user is undertaken singing or talking by microphone, in response to the testing result of described microphone signal circuit for detecting, the people's sound module that disappears described in described audio frequency apparatus utilizes to disappear people's sonication to the music signal from described music input interface input, can reach like this when user talks, can either ensure still there is pleasing background music in environment, the interference that the speak sound of performance sound to user that can well avoid again singer in music signal causes, improve the experience of user greatly, (2) by arrange fade in treatment circuit and audio frequency of audio frequency in voice circuit and to fade out treatment circuit disappearing, when making user use microphone to talk, music signal through the people's sonication that disappears can produce in the mode of fading in, and original music signal can disappear in the mode of fading out, by such mode, make voice eliminate front and back can seamlessly transit, improve the experience of user greatly, (3) for different synthesis, the transmission means of singer's sound in existing music signal and background music sound, provide at least four kinds of voice schemes that disappear, music signal from the input of described music input interface is disappeared people's sonication, ensure that the reliability of product fully.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection range that all should be included in the utility model claim.
Claims (10)
1. an audio frequency apparatus, is characterized in that, comprising:
Microphone interface, it is for supplying described audio frequency apparatus external microphone;
Music input interface, it is for supplying the external audiogenic device of described audio frequency apparatus;
Microphone signal circuit for detecting, whether it is electrically connected with described microphone interface, have audio signal to enter, and send preset signals when described microphone interface has audio signal to enter for detecting described microphone interface; And
Disappear voice circuit, and it is electrically connected with described music input interface, carries out voice Processing for removing for the preset signals responding described detecting unit to the music signal from described music input interface input.
2. audio frequency apparatus as claimed in claim 1, it is characterized in that, the described voice circuit that disappears comprises fade in treatment circuit and audio frequency of audio frequency and to fade out treatment circuit, the described audio frequency treatment circuit that fades in comprises the people's sound module that disappears, the described people's of disappearing sound module has signal input part and signal output part, described audio frequency treatment circuit and the audio frequency treatment circuit that fades out that fades in is connected electrically between described signal input part and signal output part in parallel, described signal input part is electrically connected with described music input interface, enter fade in treatment circuit and audio frequency of described audio frequency from the music signal of described music input interface input respectively by described signal input part to fade out treatment circuit, described audio frequency fades in treatment circuit for disappearing people's sonication fading in process to the audio signal after process to described music signal, described audio frequency fades out treatment circuit for process of synchronously fading out to described music signal, export after described signal output part carries out Signal averaging via described audio frequency treatment circuit and the audio frequency audio signal after processing circuit processes of fading out of fading in respectively.
3. audio frequency apparatus as claimed in claim 2, it is characterized in that, described music input interface is at least integrated with L channel and R channel.
4. audio frequency apparatus as claimed in claim 3, it is characterized in that, the described people's of disappearing sound module comprises one first audio processing modules, described first audio processing modules comprises anti-phase addition arithmetic element, filter unit and compensating unit, described anti-phase addition arithmetic element be connected with the described music input interface signal of telecommunication carry out anti-phase addition computing with the music signal inputted L channel and the R channel via described music input interface after export, described filter unit be connected with the described music input interface signal of telecommunication carry out filtering with the music signal inputted L channel and the R channel via described music input interface after export, described compensating unit is connected with described anti-phase addition arithmetic element and the filter unit signal of telecommunication respectively and exports after the voice data exported by described anti-phase addition arithmetic element and the voice data to be exported by described filter unit are carried out overlap-add procedure.
5. audio frequency apparatus as claimed in claim 3, it is characterized in that, the described people's of disappearing sound module comprises one second audio processing modules, described second audio processing modules comprises quiet unit and audio reproduction unit, described quiet unit is electrically connected between described music input interface and described audio reproduction unit and performs quiet with the preset signals according to described microphone signal circuit for detecting to the L channel in described music input interface or R channel, described audio reproduction unit is electrically connected between described signal input part and described signal output part, for obtaining the voice data not being muted the quiet sound channel of unit inputted by described music input interface, and this voice data is reappeared in quiet sound channel and exports in the sound channel that described signal output part is corresponding.
6. audio frequency apparatus as claimed in claim 3, it is characterized in that, the described people's of disappearing sound module comprises one the 3rd audio processing modules, described 3rd audio processing modules is electrically connected between signal input part and signal output part, 3rd audio processing modules is used for extracting according to the preset signals of described microphone signal circuit for detecting the voice data inputted by the L channel of music input interface or R channel, and is exported via the L channel of signal output part and R channel by the voice data extracted.
7. audio frequency apparatus as claimed in claim 3, it is characterized in that, the described people's of disappearing sound module comprises one the 4th audio processing modules, disappear between the signal input part of people's sound module and signal output part described in 4th audio processing modules is electrically connected on, to make the music signal by inputting in music input interface export via signal output part according to the preset signals of described microphone signal circuit for detecting.
8. audio frequency apparatus as claimed in claim 1, it is characterized in that, described microphone interface is cable microphone interface or wireless microphone interface, described cable microphone interface is at least one in TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, OTGUSB interface, and described wireless microphone interface is at least one in Bluetooth signal receiver module, WIFI signal receiver module, FM signal receiving module or IR signal reception module.
9. audio frequency apparatus as claimed in claim 1, it is characterized in that, described music input interface is wireline audio interface or wireless audio interface, described wireline audio interface is TRS interface, RCA interface, XLR interface, AES/EBU interface, S/PDIF interface, RCA coaxial interface, BNC coaxial interface, optical fiber interface, lightning interface, USB interface, at least one in the existing audio interface of OTGUSB interface, described wireless audio interface is Bluetooth signal receiver module, WIFI signal receiver module, at least one in FM signal receiving module or IR signal reception module.
10. the audio frequency apparatus as described in any one of claim 1 ~ 9, is characterized in that, described audio frequency apparatus is also provided with audio signal output interface and/or monitors interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520935416.2U CN205160773U (en) | 2015-11-21 | 2015-11-21 | Audio device |
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| CN201520935416.2U CN205160773U (en) | 2015-11-21 | 2015-11-21 | Audio device |
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| CN205160773U true CN205160773U (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905789A (en) * | 2017-12-10 | 2019-06-18 | 张德明 | A kind of K song microphone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109905789A (en) * | 2017-12-10 | 2019-06-18 | 张德明 | A kind of K song microphone |
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