CN204652646U - There is the audio frequency apparatus of the former sound function that disappears - Google Patents
There is the audio frequency apparatus of the former sound function that disappears Download PDFInfo
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- CN204652646U CN204652646U CN201520410458.4U CN201520410458U CN204652646U CN 204652646 U CN204652646 U CN 204652646U CN 201520410458 U CN201520410458 U CN 201520410458U CN 204652646 U CN204652646 U CN 204652646U
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Abstract
The utility model provides a kind of audio frequency apparatus with the former sound function that disappears, and it is for processing the audio signal of input, and described audio frequency apparatus comprises music signal interface, disappear former sound module and audio output interface; Music signal interface is used for inputing to described audio frequency apparatus for music signal, described music signal interface comprises at least one in first music signaling interface and the second music signal interface, described first music signaling interface is digital audio interface, and described second music signal interface is analog audio interface; Described former sound module and the described music signal interface of disappearing is electrically connected, for carrying out former sound Processing for removing to the music signal inputted by described music signal interface; Audio output interface for through described in disappear the simulation accompaniment signal output obtained after former sound resume module.Beneficial effect: former sound module carries out former sound Processing for removing to the music that music signal interface inputs by disappearing, remaining accompaniment.
Description
Technical field
The utility model relates to Audio Signal Processing field, particularly 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, the elimination in voice data Central Plains sound (i.e. original singer) such as music is a problem anxious to be resolved, such as, only be there is the voice data of accompaniment in the former sound in the voice datas such as elimination music, and then in must deducing for various specialty or the music of sparetime, and do not need to make the voice data only having accompaniment extraly.
But, the realization of existing former sound Processing for removing needs user to carry out complicated process to the voice data that music etc. contains former sound, and for a large amount of domestic consumers, the former sound Processing for removing of current broadcasting music cannot be realized because it does not have professional skill.
Summary of the invention
An object of the present utility model is to solve in prior art and is difficult to realize former sound Processing for removing for voice data domestic consumers such as music, the defect that the process eliminated of former sound is comparatively loaded down with trivial details.
The utility model is achieved in that a kind of audio frequency apparatus with the former sound function that disappears, and it is for processing the audio signal of input, and described audio frequency apparatus comprises:
Music signal interface, for inputing to described audio frequency apparatus for music signal, described music signal interface comprises at least one in first music signaling interface and the second music signal interface, described first music signaling interface is digital audio interface, and described second music signal interface is analog audio interface;
Disappear former sound module, described in disappear former sound module and described music signal interface be electrically connected, for carrying out former sound Processing for removing to the music signal inputted by described music signal interface;
Audio output interface, for through described in the simulation accompaniment signal obtained after former sound resume module that disappears export.
Further, described audio frequency apparatus also comprises microphone interface, the first mix module, simulation first audio signal that described microphone interface is used for gathering for external speaker equipment inputs to described audio frequency apparatus, described first mix module is electrically connected with the described former sound module that disappears, described microphone interface respectively, described first mix module be used for through described in disappear after simulation first audio signal that the simulation accompaniment signal obtained after former sound resume module, described microphone interface export carries out audio mixing and exported by described audio output interface.
Further, described audio frequency apparatus also comprises instrumental interface, audio effect processing module, and described audio effect processing module is electrically connected between described microphone interface and described first mix module, and described instrumental interface and described first mix module are electrically connected; Described audio effect processing module obtains simulation second audio signal after being used for that simulation first audio signal inputted by described microphone interface is carried out analog-to-digital conversion, audio effect processing, digital-to-analogue conversion successively, described first mix module of described simulation second audio signal input and the instrumental audio signal inputted by instrumental interface, through described in the disappear simulation that obtains after former sound resume module accompany after signal audio mixing and exported by described audio output interface.
Further, the former sound module that disappears described in comprises:
First audio codec, be electrically connected with described music signal interface, when described music signal interface is digital audio interface, described first audio codec is used for carrying out digital-to-analogue conversion to the digital music signal of described music signal interface input, export analog music signals, when described music signal interface is analog audio interface, described first audio codec is for receiving the analog music signals of described music signal interface input and exporting;
Second audio codec, is electrically connected with described first audio codec, carries out analog-to-digital conversion, export digital music signal for the analog music signals exported described first audio codec;
Disappear former sound unit, is electrically connected with described second audio codec, returns to described second audio codec and carry out digital-to-analogue conversion after the digital music signal for exporting the second audio codec carries out former sound Processing for removing, exports simulation accompaniment signal;
Audio processing modules, described audio processing modules respectively with described second audio codec, described in the former sound unit that disappears be electrically connected, for for described second audio codec, described in the former sound unit that disappears clock signal is provided.
Further, described audio frequency apparatus also comprises microphone interface, 3rd audio codec and the first mix module, the first audio signal that described microphone interface is used for gathering for external speaker equipment inputs to described audio frequency apparatus, described 3rd audio codec respectively with described microphone interface, described audio processing modules is electrically connected, obtain after simulation first audio signal that described 3rd audio codec is used for being exported by described microphone interface carries out analog-to-digital conversion obtaining digital second audio signal after digital first audio signal transmission carries out audio effect processing to described audio processing modules, described digital second audio signal returns to described 3rd audio codec and carries out digital-to-analogue conversion, obtain simulation second audio signal, described first mix module is electrically connected with described first audio codec, described second audio codec, described 3rd audio codec, described audio output interface respectively, is exported after simulation second audio signal that described first mix module is used for the analog music signals to described first audio codec output, the simulation accompaniment signal that described second audio codec exports, described 3rd audio codec export carries out audio mixing by described audio output interface.
Further, described audio frequency apparatus also comprises instrumental interface, the second mix module, described second mix module is electrically connected between described instrumental interface and described 3rd audio codec, described second mix module is also electrically connected with described microphone interface, described second mix module is used for carrying out audio mixing to the instrumental audio signal inputted by described instrumental interface and simulation first audio signal to be inputted by described microphone interface, and the audio signal after audio mixing inputs to described 3rd audio codec and described simulation second audio signal and carries out audio mixing and export.
Further, described 3rd audio codec and described first audio codec are electrically connected, and the audio signal that described 3rd audio codec exports and the simulation that described second audio codec exports are accompanied after signal carries out audio mixing, analog-to-digital conversion by described first audio codec and exported by first music signaling interface; Described second music signal interface is electrically connected with described 3rd audio codec, described second audio codec respectively, and the simulation that audio signal and described second audio codec that described 3rd audio codec exports export signal of accompanying passes through described second music signal interface and exports.
Further, described audio frequency apparatus also comprises the former sound switch that disappears, one end of the described former sound switch that disappears is electrically connected with described first audio codec, described second music signal interface respectively, the other end of the described former sound switch that disappears and the electrical downlink connection of described second audio codec, the simulation controlling to simulate between described first audio codec and described second audio codec between the on/off of Signal transmissions of accompanying and electrical and described second audio codec of described second music signal interface is accompanied the on/off of Signal transmissions.
Further, described audio frequency apparatus also comprises audio storehouse, audio diverter switch and single-chip microcomputer, described audio diverter switch is electrically connected by described single-chip microcomputer and audio processing modules, described single-chip microcomputer, for responding the default triggering mode of described audio diverter switch, selects one or more audios to carry out audio effect processing to numeral first audio signal inputted by described 3rd audio codec to make described audio processing modules from described audio storehouse.
Further, described audio frequency apparatus also comprises the first switch, in second switch and the 3rd switch at least one, described first switch is electrically connected between described first audio codec and the first mix module, described second switch is electrically connected between described second audio codec and the first mix module, and described 3rd switch is electrically connected between described 3rd audio codec and the first mix module.
The utility model beneficial effect: the utility model improves a kind of audio frequency apparatus with the former sound function that disappears, described audio frequency apparatus carries out former sound Processing for removing by the former sound module that disappears to the music that music signal interface inputs, remaining accompaniment.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, be briefly described to the accompanying drawing used required in execution mode below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, 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.
Fig. 1 is the structural representation that the utility model has audio frequency apparatus first embodiment of the former sound function that disappears;
Fig. 2 is the structural representation that the utility model has audio frequency apparatus second embodiment of the former sound function that disappears;
Fig. 3 is the structural representation that the utility model has audio frequency apparatus the 3rd embodiment of the former sound function that disappears;
Fig. 4 is the structural representation that the utility model has audio frequency apparatus the 4th embodiment of the former sound function that disappears.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Shown in figure 1, the described audio frequency apparatus with the former sound function that disappears is for processing the audio signal of input, described audio frequency apparatus comprises music signal interface 1, disappear former sound module 2, audio output interface 3, music signal interface 1 is for supplying outer audio equipment (such as mobile phone, panel computer or computer) music signal with former sound that exports inputs to described audio frequency apparatus, described music signal interface 1 comprises at least one in first music signaling interface 111 and the second music signal interface 112, described first music signaling interface 111 is digital audio interface, comprise USB interface, pci interface, 1394 interfaces, ISA interface, thunder and lightning interface etc., but be not limited thereto, every can the interface of transmission of digital audio signal can, first music signaling interface 111 for computer, panel computer is electrically connected, described second music signal interface 112 is analog audio interface, for being electrically connected with mobile phone, and transportation simulator audio signal mutual to mobile phone.The described former sound module 2 that disappears is electrically connected with described music signal interface 1, for carrying out former sound Processing for removing remaining accompaniment signal to the music signal inputted by described music signal interface 1, described audio output interface 3 for being connected with outside audiomonitor (such as earphone etc.) etc., for through described in disappear and obtain simulation accompaniment signal after the process of former sound module 2 and export to outside audiomonitor and monitor.The beneficial effect of the technical program: the music that described audio frequency apparatus is inputted by the former sound module 2 pairs of music signal interfaces 1 that disappear carries out former sound Processing for removing, remaining accompaniment.
In general, the original audio data for singing is roughly divided into three kinds, and namely L channel is former sound, and R channel is the original audio data of accompaniment; L channel is accompaniment, and R channel is the original audio data of former sound; L channel and R channel all contain former sound and accompaniment, but former sound in L channel and accompaniment are relative to the former sound in R channel and the slightly differentiated original audio data of accompaniment.Can eliminate former sound according to following three kinds of modes:
The first former sound mode that disappears: the former sound module 2 that disappears comprises anti-phase addition arithmetic element, filter unit and compensating unit.Anti-phase addition arithmetic element is connected with music signal interface 1 signal of telecommunication, to export after carrying out anti-phase addition computing via the L channel of music signal interface 1 and the original audio data of R channel input.Filter unit be connected with music signal interface 1 signal of telecommunication carry out filtering with the original audio data inputted L channel and the R channel via music signal interface 1 after export.Compensating unit is connected with anti-phase addition arithmetic element and the filter unit signal of telecommunication respectively and exports after the voice data exported by anti-phase addition arithmetic element and the voice data to be exported by filter unit are carried out overlap-add procedure.By the former sound module 2 that disappears as above, will all contain former sound and accompaniment by L channel and R channel, but the former sound in L channel carries out former sound Processing for removing with accompaniment relative to the former sound in R channel and the slightly differentiated original audio data of accompaniment.In anti-phase addition arithmetic element while former sound Processing for removing is carried out to original audio data, filter unit also carries out the extraction of original audio data medium and low frequency part simultaneously according to the frequency preset and yield value to the original audio data received, and export compensating unit to.Due to anti-phase addition arithmetic element, anti-phase addition computing is carried out to the original audio data of left and right acoustic channels and have lost accompaniment too while the former sound of elimination, therefore, needed compensating unit to compensate it, to ensure that it possesses comparatively good news matter.
The second disappears former sound mode: the former sound module 2 that disappears comprises quiet unit and audio reproduction unit.Quiet unit is electrically connected between music signal interface 1 and audio reproduction unit, for performing quiet to the L channel in music signal interface 1 or R channel under the effect of former sound elimination order.Audio reproduction unit is electrically connected between quiet unit and audio output interface 3, for obtaining the voice data not being muted the quiet sound channel of unit that inputted by music signal interface 1, and this voice data is exported via the L channel of audio output interface 3 and R channel.By disappearing, former sound module 2 pairs of L channels export former sound, and R channel exports the original audio data of accompaniment, or R channel exports former sound, and the original audio data that L channel exports accompaniment carries out former sound Processing for removing, and exports in audio output interface 3.
The third former sound mode that disappears: the former sound module 2 that disappears is connected between music signal interface 1 and audio output interface 3, this disappear former sound module 2 for eliminate order at voice effect under extract the voice data inputted by the L channel of music signal interface 1 or R channel, and the voice data extracted to be exported via the L channel of audio output interface 3 and R channel.In the present embodiment, voice is exported to L channel, R channel exports the original audio data of background sound, or, R channel exports voice, L channel exports the original audio data of background sound, and carry out the extraction of voice data for the L channel or R channel that export background sound by the former sound module 2 that disappears, the voice data extracted is the voice data corresponding to background sound.After completing the voice data in music signal interface 1 corresponding to background sound and extracting, the voice data extracted is exported via the L channel in audio output interface 3 and R channel, now, L channel and R channel in audio output interface 3 is made all to export background sound.
Shown in figure 2, described audio frequency apparatus also comprises microphone interface 4, first mix module 5, described microphone interface 4 inputs to described audio frequency apparatus for simulation first audio signal gathered for external speaker equipment, described first mix module 5 is electrically connected with the described former sound module 2 that disappears, described microphone interface 4 respectively, described first mix module 5 for through described in disappear former sound module 2 process after obtain simulation accompaniment signal, described microphone interface 4 export simulation first audio signal carry out audio mixing after exported by described audio output interface 3.The beneficial effect of the technical program: the first audio signal that the accompaniment obtained after the former sound Processing for removing of former sound module 2 that disappears and microphone interface 4 input carries out stereo process, reaches the object of K song.
Shown in figure 3, described audio frequency apparatus also comprises instrumental interface 6, audio effect processing module 7, described audio effect processing module 7 is electrically connected between described microphone interface 4 and described first mix module 5, and described instrumental interface 6 is electrically connected with described first mix module 5; Described audio effect processing module 7 obtains simulation second audio signal after the simulation first inputted by described microphone interface 4 audio signal is carried out analog-to-digital conversion, audio effect processing, digital-to-analogue conversion successively, described first mix module 5 of described simulation second audio signal input and the instrumental audio signal inputted by instrumental interface 6, through described in the disappear simulation that obtains after former sound module 2 processes accompany after signal audio mixing and exported by described audio output interface 3.The beneficial effect of the technical program: provide instrumental interface 6, can inputting described audio frequency apparatus for the instrumental audio signal of musical instrument, reaching the object from playing from singing; Audio effect processing module 7 microphone interface 4 inputs the first audio signal and carries out audio effect processing, meets the pursuit of user to audio.
Shown in figure 4, the described former sound module 2 that disappears comprises the first audio codec 21, second audio codec 22, the former sound unit 23 that disappears, audio processing modules 24, first audio codec 21, second audio codec 22 all have digital-to-analogue conversion and analog-to-digital function.Described first audio codec 21 is electrically connected with described music signal interface 1, when described music signal interface 1 is digital audio interface (described audio frequency apparatus being provided with the first music signaling interface 111 be electrically connected with computer, panel computer), described first audio codec 21 carries out digital-to-analogue conversion for the digital music signal inputted first music signaling interface 111, exports analog music signals; When described music signal interface 1 is analog audio interface (described audio frequency apparatus being provided with the second music signal interface 112 be electrically connected with mobile phone), described first audio codec 21 is for receiving the analog music signals of described second music signal interface 112 input and exporting; Described second audio codec 22 is electrically connected with described first audio codec 21, carries out analog-to-digital conversion, export digital music signal for the analog music signals exported described first audio codec 21; The described former sound unit 23 that disappears is electrically connected with described second audio codec 22, after the digital music signal with former sound for exporting the second audio codec 22 carries out former sound Processing for removing, remaining numeral accompaniment signal return carries out digital-to-analogue conversion to described second audio codec 22, exports simulation accompaniment signal; Described audio processing modules 24 respectively with described second audio codec 22, described in the former sound unit 23 that disappears be electrically connected, for for described second audio codec 22, described in the former sound unit 23 that disappears clock signal is provided.Adopt the framework of the technical program, beneficial effect is: described first audio codec 21 converts digital music signal to analog music signals, described second audio codec 22 analog music signals is changed into digital music signal be transferred to again described in the former sound unit 23 that disappears carry out former sound Processing for removing, audio processing modules 24 described in first provides stable clock signal for the second audio codec 22 and the described former sound unit 23 that disappears, avoid the numeral accompaniment signal generation confusion that following situation causes exporting, there is the problem of noise or confusion in the accompaniment listened to: disappear former sound unit 23 directly and first music signaling interface 111 be electrically connected, to computer, the digital music signal that panel computer exports carries out former sound Processing for removing, disappear the clock signal of former sound unit 23 by computer, the CPU of panel computer provides, when clock signal changes (such as changing a piece of music), due to the defect of the program of former sound unit 23 that disappears own, need a period of time stabilizing clock, the numeral accompaniment signal now exported occurs chaotic.And the technical solution of the utility model overcomes this problem completely.
Described audio frequency apparatus also comprises microphone interface 4, 3rd audio codec 8 and the first mix module 5, described microphone interface 4 inputs to described audio frequency apparatus for the first audio signal gathered for external speaker equipment, described 3rd audio codec 8 respectively with described microphone interface 4, described audio processing modules 24 is electrically connected, 3rd audio codec 8 has analog-to-digital conversion and analog-to-digital function, obtain after simulation first audio signal that described microphone interface 4 exports by described 3rd audio codec 8 carries out analog-to-digital conversion digital first audio signal transmission to described audio processing modules 24 (have provide clock and audio effect processing difunctional) carry out audio effect processing after obtain digital second audio signal (i.e. wet tone signal), described digital second audio signal returns to described 3rd audio codec 8 and carries out digital-to-analogue conversion, obtain simulation second audio signal, described first mix module 5 is electrically connected with described first audio codec 21, described second audio codec 22, described 3rd audio codec 8, described audio output interface 3 respectively, exports to outside audiomonitor monitor after simulation second audio signal that the simulation accompaniment signal that described first mix module 5 exports for the analog music signals exported described first audio codec 21, described second audio codec 22, described 3rd audio codec 8 export carries out audio mixing by described audio output interface 3.The beneficial effect of the technical program: during external outside audiomonitor, can listen to music, accompaniment, wet sound.
Described audio frequency apparatus comprises instrumental interface 6, second mix module 9, described second mix module 9 is electrically connected between described instrumental interface 6 and described 3rd audio codec 8, described second mix module 9 is also electrically connected with described microphone interface 4, described second mix module 9 is for carrying out audio mixing to the instrumental audio signal inputted by described instrumental interface 6 and simulation first audio signal inputted by described microphone interface 4 (simulating dry tone signal), audio signal after audio mixing inputs to described 3rd audio codec 8 and carries out audio mixing with described simulation second audio signal (simulate the tone signal that wets) and export.The technical program beneficial effect is: can input described audio frequency apparatus for the instrumental audio signal of musical instrument, reach the object from playing from singing, just do not need computer, mobile phone etc. to provide to have accompanied, in the technical program, first audio signal (dry tone signal) point two-way exports, and a road is to the 3rd audio codec 8, and another road is to described second mix module 9, by the psychrometric ratio (dry sound and wet signal to noise ratio example) preset, make the sound of output more melodized.
Described 3rd audio codec 8 is electrically connected with described first audio codec 21, and the simulation that audio signal (analog instruments audio signal+dry sound+wet sound) and described second audio codec 22 that described 3rd audio codec 8 exports export is accompanied and exported to outside audiomonitor (such as computer, panel computer etc.) by first music signaling interface 111 again after signal carries out audio mixing, analog-to-digital conversion by described first audio codec 21 and record.Described second music signal interface 112 is electrically connected with described 3rd audio codec 8, described second audio codec 22 respectively, and the audio signal that described 3rd audio codec 8 exports and the simulation that exports of described second audio codec 22 signal of accompanying is exported to outside audiomonitor (such as mobile phone etc.) by described second music signal interface 112 and recorded.The beneficial effect of the technical program: the recording that computer, panel computer, mobile phone carry out audio frequency can be supplied.
Described audio frequency apparatus also comprises the former sound switch 10 that disappears, one end of the described former sound switch 10 that disappears respectively with described first audio codec 21, described second music signal interface 112 is electrically connected, the other end of the described former sound switch 10 that disappears and described second audio codec 22 electrically downlink connection, the on/off controlling to simulate between described first audio codec 21 and described second audio codec 22 Signal transmissions of accompanying (namely controls computer, panel computer records accompaniment) and electrical and described second audio codec 22 of described second music signal interface 112 between simulation to accompany the on/off (namely control mobile phone and record accompaniment) of Signal transmissions.
Described audio frequency apparatus also comprises audio storehouse 11, audio diverter switch 12 and single-chip microcomputer 13, described audio diverter switch 12 is electrically connected with audio processing modules 24 by described single-chip microcomputer 13, described single-chip microcomputer 13, for responding the default triggering mode of described audio diverter switch 12, selects one or more audios to carry out audio effect processing to numeral first audio signal inputted by described 3rd audio codec 8 (dry tone signal) to make described audio processing modules 24 from described audio storehouse 11.
Described audio frequency apparatus also comprises the first switch 14, in second switch 15 and the 3rd switch 16 at least one, described first switch 14 is electrically connected between described first audio codec 21 and the first mix module 5, controls the break-make that the audio signal (analog music signals) between described first audio codec 21 and the first mix module 5 is transmitted; Described second switch 15 is electrically connected between described second audio codec 22 and the first mix module 5, controls the break-make that the audio signal (simulating signal of accompanying) between described second audio codec 22 and the first mix module 5 is transmitted; Described 3rd switch 16 is electrically connected between described 3rd audio codec 8 and the first mix module 5, controls the break-make that the audio signal (analog instruments audio frequency+dry sound+wet tone signal) between described 3rd audio codec 8 and the first mix module 5 is transmitted.By three switches, user can be made optionally to monitor which kind of sound.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.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 any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection range that all should be included in the claims in the present invention.
Claims (10)
1. have an audio frequency apparatus for the former sound function that disappears, it is for processing the audio signal of input, and it is characterized in that, described audio frequency apparatus comprises:
Music signal interface, for inputing to described audio frequency apparatus for music signal, described music signal interface comprises at least one in first music signaling interface and the second music signal interface, described first music signaling interface is digital audio interface, and described second music signal interface is analog audio interface;
Disappear former sound module, described in disappear former sound module and described music signal interface be electrically connected, for carrying out former sound Processing for removing to the music signal inputted by described music signal interface;
Audio output interface, for through described in the simulation accompaniment signal obtained after former sound resume module that disappears export.
2. audio frequency apparatus according to claim 1, it is characterized in that, described audio frequency apparatus also comprises microphone interface, first mix module, simulation first audio signal that described microphone interface is used for gathering for external speaker equipment inputs to described audio frequency apparatus, described first mix module respectively with the described former sound module that disappears, described microphone interface is electrically connected, described first mix module be used for through described in disappear the simulation accompaniment signal obtained after former sound resume module, exported by described audio output interface after simulation first audio signal that described microphone interface exports carries out audio mixing.
3. audio frequency apparatus according to claim 2, it is characterized in that, described audio frequency apparatus also comprises instrumental interface and audio effect processing module, described audio effect processing module is electrically connected between described microphone interface and described first mix module, and described instrumental interface and described first mix module are electrically connected; Described audio effect processing module obtains simulation second audio signal after being used for that simulation first audio signal inputted by described microphone interface is carried out analog-to-digital conversion, audio effect processing, digital-to-analogue conversion successively, described first mix module of described simulation second audio signal input and the instrumental audio signal inputted by instrumental interface, through described in the disappear simulation that obtains after former sound resume module accompany after signal audio mixing and exported by described audio output interface.
4. audio frequency apparatus according to claim 1, is characterized in that, described in the former sound module that disappears comprise:
First audio codec, be electrically connected with described music signal interface, when described music signal interface is digital audio interface, described first audio codec is used for carrying out digital-to-analogue conversion to the digital music signal of described music signal interface input, export analog music signals, when described music signal interface is analog audio interface, described first audio codec is for receiving the analog music signals of described music signal interface input and exporting;
Second audio codec, is electrically connected with described first audio codec, carries out analog-to-digital conversion, export digital music signal for the analog music signals exported described first audio codec;
Disappear former sound unit, is electrically connected with described second audio codec, returns to described second audio codec and carry out digital-to-analogue conversion after the digital music signal for exporting the second audio codec carries out former sound Processing for removing, exports simulation accompaniment signal;
Audio processing modules, described audio processing modules respectively with described second audio codec, described in the former sound unit that disappears be electrically connected, for for described second audio codec, described in the former sound unit that disappears clock signal is provided.
5. audio frequency apparatus according to claim 4, it is characterized in that, described audio frequency apparatus also comprises microphone interface, 3rd audio codec and the first mix module, the first audio signal that described microphone interface is used for gathering for external speaker equipment inputs to described audio frequency apparatus, described 3rd audio codec respectively with described microphone interface, described audio processing modules is electrically connected, obtain after simulation first audio signal that described 3rd audio codec is used for being exported by described microphone interface carries out analog-to-digital conversion obtaining digital second audio signal after digital first audio signal transmission carries out audio effect processing to described audio processing modules, described digital second audio signal returns to described 3rd audio codec and carries out digital-to-analogue conversion, obtain simulation second audio signal, described first mix module is electrically connected with described first audio codec, described second audio codec, described 3rd audio codec, described audio output interface respectively, is exported after simulation second audio signal that described first mix module is used for the analog music signals to described first audio codec output, the simulation accompaniment signal that described second audio codec exports, described 3rd audio codec export carries out audio mixing by described audio output interface.
6. audio frequency apparatus according to claim 5, it is characterized in that, described audio frequency apparatus also comprises instrumental interface, second mix module, described second mix module is electrically connected between described instrumental interface and described 3rd audio codec, described second mix module is also electrically connected with described microphone interface, described second mix module is used for carrying out audio mixing to the instrumental audio signal inputted by described instrumental interface and simulation first audio signal inputted by described microphone interface, audio signal after audio mixing inputs to described 3rd audio codec and described simulation second audio signal and carries out audio mixing and export.
7. the audio frequency apparatus according to claim 5-6 any one, it is characterized in that, described 3rd audio codec and described first audio codec are electrically connected, and the audio signal that described 3rd audio codec exports and the simulation that described second audio codec exports are accompanied after signal carries out audio mixing, analog-to-digital conversion by described first audio codec and exported by first music signaling interface; Described second music signal interface is electrically connected with described 3rd audio codec, described second audio codec respectively, and the simulation that audio signal and described second audio codec that described 3rd audio codec exports export signal of accompanying passes through described second music signal interface and exports.
8. the audio frequency apparatus according to claim 4-6 any one, it is characterized in that, described audio frequency apparatus also comprises the former sound switch that disappears, one end of the described former sound switch that disappears respectively with described first audio codec, described second music signal interface is electrically connected, the other end of the described former sound switch that disappears and the electrical downlink connection of described second audio codec, the simulation controlling to simulate between described first audio codec and described second audio codec between the on/off of Signal transmissions of accompanying and electrical and described second audio codec of described second music signal interface is accompanied the on/off of Signal transmissions.
9. the audio frequency apparatus according to claim 5-6 any one, it is characterized in that, described audio frequency apparatus also comprises audio storehouse, audio diverter switch and single-chip microcomputer, described audio diverter switch is electrically connected by described single-chip microcomputer and audio processing modules, described single-chip microcomputer, for responding the default triggering mode of described audio diverter switch, selects one or more audios to carry out audio effect processing to numeral first audio signal inputted by described 3rd audio codec to make described audio processing modules from described audio storehouse.
10. the audio frequency apparatus according to claim 5-6 any one, it is characterized in that, described audio frequency apparatus also comprises the first switch, in second switch and the 3rd switch at least one, described first switch is electrically connected between described first audio codec and the first mix module, described second switch is electrically connected between described second audio codec and the first mix module, and described 3rd switch is electrically connected between described 3rd audio codec and the first mix module.
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