CN110211597A - Audio remote interaction method and system - Google Patents
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/08—Speech classification or search
- G10L2015/088—Word spotting
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/223—Execution procedure of a spoken command
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Abstract
The present invention relates to audio remote interaction method and system, including three-stage audio acquisition and level Four audio collection；Three-stage audio acquisition, the audio-frequency information that acquisition distal end is sent is sent to level Four audio collection, to carry out local broadcasting；The level Four audio collection, on the one hand, receive the audio-frequency information that the transmitted distal end of three-stage audio acquisition is sent；On the other hand, it receives third audio-frequency information and is sent to the broadcasting of local audio playing module；The third audio-frequency information is the audio-frequency information of local intelligent interactive terminal；Level Four audio collection includes at least two level Four audio transmission channels, is sent to local audio playing module by one of channel from the received audio-frequency information in distal end and plays；Further include, from third audio-frequency information described in another channel back production, for being sent to distal end.Compared with prior art, it can effectively ensure that the audio quality in remote audio interactive process, reach better audio result of broadcast.
Description
Technical field
The present invention relates to audio remote interaction method and system, are applicable to teaching, the meeting etc. of remote audio interaction
Audio remote interaction method and system.
Background technique
Traditional mode of giving lessons on the spot, since student can also be easiest to be taught directly facing teacher, classroom atmosphere
Learn teacher to be driven, and can have more interactions, therefore, traditional mode of giving lessons on the spot always be it is most popular,
The best mode of giving lessons of teaching efficiency.It is in short supply with the development of information age, the development of internet and Teaching Effectively resource, by
The limitation of room and time, the mode that only tradition is given lessons, is no longer satisfied the learning demand of people, a large portion
Habit person is learnt by internet, and the mode of study can be record class video, is also possible to remote online education, but no matter
It is the interactive teaching defect that record class video or remote online education all have mode of giving lessons on the spot, has no idea preferably to interact
In contrast teaching, learning effect, are still wanted far short of what is expected.
According to the proposition of the above problem, the Mutual Promoted of remote teaching is developed, can be suitable for can not be in teacher
Place classroom is listened to the teacher, while being listened to the teacher the teaching affairs of student in other classrooms, during interactive teaching, is acquired using far field wheat
The sound of learner answering questions problem uses the sound of near field wheat acquisition teacher.But in remote interaction, generally require local
Audio file (audio file or local intelligent interactive terminal in such as PPT of smart-interactive terminal (such as computer, mobile phone)
Other audio files of upper storage) it is transferred to distal end, if using the audio remote interaction Structure and Process of the prior art, due to this
The audio file of ground smart-interactive terminal can play after locally output, then be inconvenient to extract exclusively local audio file transmission
It is played to distal end, the effect that audio plays out is poor, and interactive audio frequency Experience Degree is poor.
Summary of the invention
The present invention provides a kind of audio remote interaction method and system, during having convenient for making remote interaction, audio
The more preferable feature of result of broadcast.
The audio remote interaction method provided according to the present invention, including three-stage audio acquisition and level Four audio collection；
The three-stage audio acquisition, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection, to carry out local broadcast
It puts；The level Four audio collection, on the one hand, receive the audio-frequency information that the transmitted distal end of three-stage audio acquisition is sent；Another party
Face receives third audio-frequency information and is sent to the broadcasting of local audio playing module；The third audio-frequency information is that local intelligent is whole
The audio-frequency information at end；
The level Four audio collection includes at least two level Four audio collection channels, from the received audio-frequency information in distal end by wherein
One channel is sent to the broadcasting of local audio playing module；It further include, from third audio-frequency information described in another channel back production, using
In be sent to distal end.
Based on above-mentioned audio remote interaction scheme, the audio-frequency information that output distal end is sent is acquired using one of channel,
The third audio-frequency information that will be transmitted to level Four audio collection is acquired by the channel different from one of channel, can be adopted
Collect pure third audio-frequency information, so that collected third audio-frequency information be avoided to have the defects that audio mixing, raising is output to
The quality of the third audio-frequency information of distal end, improves the experience sense of user.
Level Four audio collection channel includes L channel and right channel, is that the sound card of smart machine exports, using one of them
Sound channel output is used to be sent to the third audio letter of distal end from the received audio-frequency information in distal end from another sound channel back production
Breath.
It further include level-one audio collection and secondary audio acquisition；The level-one audio collection includes adopting for the first audio-frequency information
The acquisition of collection and the second audio-frequency information；The secondary audio acquisition includes acquisition level-one audio collection audio-frequency information collected,
For local audio information.
The secondary audio acquires the first audio-frequency information and the second audio-frequency information collected and plays without local audio.
The secondary audio acquisition carries out mutual exclusion acquisition to the first audio-frequency information and the second audio-frequency information in synchronization.
After first carrying out echo cancellation to secondary audio acquisition part or all of level-one audio-frequency information collected, then Xiang Yuanduan
It sends.
First audio-frequency information is near field wheat audio collection information, and second audio-frequency information is far field wheat audio collection
Information first acquires after far field wheat audio-frequency information collected carries out echo cancellation secondary audio, then sends to distal end.
First audio-frequency information acquires audio-frequency information collected and carries out local broadcast before entering secondary audio acquisition
It puts.
Method before secondary audio acquisition further includes judging that secondary audio acquisition audio-frequency information collected is the first sound
Frequency information or the second audio-frequency information then cut off the second audio-frequency information acquisition link, if it is the if it is the first audio-frequency information
Two audio-frequency informations then cut off the first audio-frequency information acquisition link；The first audio-frequency information acquisition link is the first audio-frequency information
It is sent to the acquisition link of secondary audio acquisition；The second audio-frequency information acquisition link is that the second audio-frequency information is sent to second level
The acquisition link of audio collection.
The method also includes the secondary audio acquisition is acquired the first audio-frequency information and the second audio-frequency information
When, it is acquired using different sound channels；It cuts off the first audio-frequency information acquisition link and/or the second audio-frequency information acquires link
Method includes the transmission sound channel of the first audio-frequency information and/or the second audio-frequency information in corresponding cutting secondary audio acquisition.
Judge that secondary audio acquires the method that audio-frequency information collected is the first audio-frequency information or the second audio-frequency information
Including acquiring phonetic order information, being judged according to phonetic order information.
Judge that secondary audio acquires the method that audio-frequency information collected is the first audio-frequency information or the second audio-frequency information
Including setting acquisition selection switch judges according to the switching signal of acquisition selection switch.
The audio remote interaction system provided according to the present invention, including three-stage audio acquisition module and level Four audio collection mould
Block；
The three-stage audio acquisition module, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection module, thus into
Row is local to be played；The level Four audio collection module, on the one hand, communicated with three-stage audio acquisition module, receive three-stage audio and adopt
Collect the audio-frequency information that distal end transmitted by module is sent；On the other hand, it receives third audio-frequency information and is sent to local audio and broadcast
Amplification module plays；The third audio-frequency information is the audio-frequency information of local intelligent terminal；
The level Four audio collection module includes at least two level Four audio transmission channels, and from distal end, received audio-frequency information passes through
One of channel is sent to the broadcasting of local audio playing module；It further include believing from third audio described in another channel back production
Breath, for being sent to distal end.
In conclusion the present invention in contrast to the prior art, can effectively ensure that the audio matter in remote audio interactive process
Amount, reaches better audio result of broadcast.
Detailed description of the invention
Fig. 1 is the Structure and Process schematic diagram of a wherein embodiment of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Any feature disclosed in this specification (including abstract and attached drawing) unless specifically stated can be equivalent by other
Or the alternative features with similar purpose are replaced.That is, unless specifically stated, each feature is a series of equivalent or class
Like an example in feature.
Audio remote interaction method and system of the invention can be used in the various occasions including remote audio interaction, including
Teleconference, remote teaching etc..
Embodiment of the present invention is described in detail by taking remote teaching as an example below.
A kind of audio remote interaction method, including three-stage audio acquisition and level Four audio collection；
The three-stage audio acquisition, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection, to carry out local broadcast
It puts；The level Four audio collection, on the one hand, receive the audio-frequency information that the transmitted distal end of three-stage audio acquisition is sent；Another party
Face receives third audio-frequency information and is sent to the broadcasting of local audio playing module；The third audio-frequency information is local intelligent friendship
The audio-frequency information of mutual terminal；
The level Four audio collection includes at least two level Four audio collection channels, from the received audio-frequency information in distal end by wherein
One channel is sent to the broadcasting of local audio playing module；It further include, from third audio-frequency information described in another channel back production, using
In be sent to distal end.
Based on above-mentioned audio remote interaction scheme, the audio-frequency information that distal end is sent is exported using one of channel, from another
Third audio-frequency information described in one channel back production can collect pure third audio-frequency information, to avoid collected
Three audio-frequency informations have the defects that audio mixing, improve the quality for being output to the third audio-frequency information of distal end, enhance the experience sense of user.
As shown in Figure 1, in this embodiment, on the one hand level Four audio collection receives the audio-frequency information of local computing
(i.e. the audio-frequency information of local intelligent terminal) arrives local audio player plays, on the other hand receives the audio-frequency information of distal end, uses
In output in local broadcasting；If used without channel point, be used to send to distal end by the back production of level Four audio collection the
When three audio-frequency informations, then there are audio mixings for the third audio-frequency information that back production is returned.In the present invention program, using one of channel
The audio-frequency information that output distal end is sent can collect pure third from third audio-frequency information described in another channel back production
Audio-frequency information improves the third audio for being output to distal end so that collected third audio-frequency information be avoided to have the defects that audio mixing
The quality of information improves the experience sense of user.
As one embodiment of the present invention, as shown in Figure 1, level Four audio collection channel includes L channel and right sound
Road is that the sound card output of smart machine (such as computer, mobile phone are in this embodiment computer) is (as shown in Figure 1
The earphone of sound card exports), using the output of one of sound channel from the received audio-frequency information in distal end, it is used for from another sound channel back production
It is sent to the third audio-frequency information of distal end.Wherein, the effect of L channel and right channel can be interchanged.
It further include level-one audio collection and secondary audio acquisition as one embodiment of the present invention；The level-one sound
Frequency acquisition includes the acquisition of the first audio-frequency information and the acquisition of the second audio-frequency information；The secondary audio acquisition includes acquisition level-one
Audio collection audio-frequency information collected is local audio information.
Embodiment as shown in Figure 1, level-one audio collection include the audio collection of near field wheat and the audio collection of far field wheat,
It is not limited only to the embodiment of Fig. 1 as level-one audio collection, can also be the acquisition of far field wheat, or be that near field wheat is adopted
Collection, or be unidirectional wheat acquisition, or be the acquisition of omnidirectional wheat or combination of various acquisition modes etc..As reality of the invention
Example is applied, due to being to be applied to remote teaching, the acquisition of near field wheat is mainly used for acquiring the audio-frequency information of teacher apart from short, as the
The acquisition of one audio-frequency information；Far field wheat acquisition distance is remote, is mainly used for acquiring the audio-frequency information of student, believe as the second audio
The acquisition of breath.Level-one audio collection at least acquires two audio-frequency informations, that is to say, that at least there are two audio collecting devices.
As one embodiment of the present invention, the secondary audio acquires the first audio-frequency information and the second sound collected
Frequency information is played without local audio.
In the embodiment shown in fig. 1, secondary audio capture setting is used at intelligent terminal (such as computer, mobile phone)
Level-one audio collection audio-frequency information collected is acquired, it is (i.e. remote that the secondary audio information of acquisition will be sent to teleclass terminal
End), it amplifies broadcastings since secondary audio acquires acquire frequency information without local audio, will not generate and locally acquire again originally
Ground amplify after local original audio, therefore not will lead to caused by the local original audio after secondary acquisition locally amplifies return
Sound defect.
As one embodiment of the present invention, secondary audio acquisition is in synchronization to the first audio-frequency information and the
Two audio-frequency informations carry out mutual exclusion acquisition.
In the embodiment shown in fig. 1, secondary audio acquisition believes the first audio-frequency information and the second audio in synchronization
Breath carries out mutual exclusion acquisition, can only acquire one audio-frequency information of transmission in synchronization or not acquire or only acquire transmission
One, the mode of this mutual exclusion acquisition can be real by the way of pure software on the basis of not changing existing hardware structure
It is existing, it can also be by hardware realization.As one embodiment of the present invention, as shown in Figure 1, as an implementation of the invention
Example, in intelligent terminal, two sound channels (L channel and right channel) of corresponding sound card line input, one is used as the first audio-frequency information
Acquisition channel, another acquisition channel as the second audio-frequency information, as shown in Figure 1, L channel is as the first audio-frequency information
Acquisition channel, acquisition channel of the right channel as the second audio-frequency information correspond, and two channels can be interchanged.In existing skill
In art, there are two the above audio-frequency information, there is no mutual exclusion acquisition is carried out, cause, the first audio-frequency information of acquisition
With the second audio-frequency information, there are secondary acquisition, (the far field wheat for being mainly used for acquiring student's sound can be adopted each audio-frequency information
The sound for collecting teacher, the near field wheat for being mainly used for acquisition teacher's sound can collect the sound of teacher；Therefore the sound of teacher
All collected by far field wheat and near field wheat with the sound of student), in interactive process, audio result of broadcast is poor, poor user experience.?
In the present invention program, mutual exclusion acquisition is carried out to the first audio-frequency information and the second audio-frequency information, solves audio-frequency information secondary acquisition
Brought defect.
As one embodiment of the present invention, first secondary audio acquisition part or all of level-one audio collected is believed
It ceases after carrying out echo cancellation, then is sent to distal end.
Although secondary audio acquires the first audio-frequency information and the second audio-frequency information collected and amplifies without local audio
It plays, avoids echo defect caused by the local original audio after secondary acquisition locally amplifies, but distal end is sent
Audio-frequency information locally amplifying after broadcasting, it is local when acquiring audio-frequency information, the distal end transmission of the local broadcasting that amplifies can be collected
Audio, can by the distal end of pickup transmit audio be again sent to distal end, formed echo.As shown in Figure 1, as of the invention
Embodiment first carries out echo cancellation (as shown in Figure 1 to secondary audio acquisition part or all of level-one audio-frequency information collected
Distal reference), that is, eliminate pickup distal end transmission audio after, then to distal end send.It herein, can be to second level sound
Frequency information part primary audio-frequency information collected carries out echo cancellation, such as the first audio-frequency information or the second audio-frequency information,
Can also be after whole echo cancellation, then send to distal end, thus the echo defect for the audio-frequency information for avoiding distal end from receiving.
As one embodiment of the present invention, first audio-frequency information is near field wheat audio collection information, described the
Two audio-frequency informations are far field wheat audio collection information, first acquire far field wheat audio-frequency information collected to secondary audio and carry out echo
After elimination, then to distal end send.
As one embodiment of the present invention, as shown in Figure 1, first audio-frequency information is near field wheat audio collection letter
Breath, second audio-frequency information are far field wheat audio collection information, first acquire far field wheat audio collected to secondary audio and believe
It ceases after carrying out echo cancellation, then is sent to distal end.
As one embodiment of the present invention, the method for using echo cancellation can be art methods, such as
Acoustic Echo。
As one embodiment of the present invention, as shown in Figure 1, first audio-frequency information acquires audio letter collected
Breath (sound for the teacher that near field wheat is picked up) carries out local broadcasting before entering secondary audio acquisition.
As one embodiment of the present invention, the method before secondary audio acquisition further includes judging that secondary audio is adopted
Collecting audio-frequency information collected is the first audio-frequency information or the second audio-frequency information, if it is the first audio-frequency information, then cuts off
Two audio-frequency informations acquire link, if it is the second audio-frequency information, then cut off the first audio-frequency information acquisition link；First audio
Information collection link is the acquisition link that the first audio-frequency information is sent to secondary audio acquisition；The second audio-frequency information acquisition link
Road is the acquisition link that the second audio-frequency information is sent to secondary audio acquisition.
In embodiment as shown in Figure 1, the first audio-frequency information acquisition link includes the left side that near field wheat inputs to sound card line
Sound channel, the second audio-frequency information acquisition link include the right channel that far field wheat inputs to sound card line.For both links, same
Moment at least cuts off a link, then can guarantee to carry out mutual exclusion to the first audio-frequency information and the second audio-frequency information in synchronization
Acquisition.Any point for cutting off link can then cut off corresponding link if the acquisition of microphone is cut off.
As one embodiment of the present invention, the method also includes as shown in Figure 1, secondary audio acquisition pair
When first audio-frequency information and the second audio-frequency information are acquired, it is acquired using different sound channels；Cut off the first audio-frequency information
The method of acquisition link and/or the second audio-frequency information acquisition link includes the first audio letter in corresponding cutting secondary audio acquisition
The transmission sound channel (i.e. L channel and right channel in Fig. 1) of breath and/or the second audio-frequency information.
As one embodiment of the present invention, judging that secondary audio acquires audio-frequency information collected is the first audio letter
The method of breath or the second audio-frequency information includes acquiring phonetic order information, being judged according to phonetic order information.The voice refers to
Order can be direct phonetic order, can also be judged according to the voice keyword identified in interactive process, such as work as teacher
When saying the suchlike words and phrases of " certain classmate is asked to answer a question " etc., then judge next secondary audio acquisition needs to acquire the
Two audio-frequency informations (i.e. the sound of the student of far field wheat acquisition), then need only to open at this time the second audio letter of secondary audio acquisition
The acquisition of breath.When the suchlike sentence that teacher says " answer fine, please sit down " etc., then judge that secondary audio acquisition connects
Get off to need to acquire the first audio-frequency information (i.e. the sound of the teacher of near field wheat acquisition), then needs only to open secondary audio at this time and adopt
The acquisition of first audio-frequency information of collection.
As one embodiment of the present invention, judging that secondary audio acquires audio-frequency information collected is the first audio letter
The method of breath or the second audio-frequency information includes that setting acquisition selection switch judges according to the switching signal of acquisition selection switch.
For example, respective switch can be arranged on desk or portable remote control device of teacher etc., consequently facilitating control, passes through choosing
Switch is selected, selection currently needs only to open the acquisition of the first audio-frequency information of secondary audio acquisition, or currently needs only to open
Secondary audio acquisition the second audio-frequency information acquisition, the selection set-up mode of switch can be it is a variety of, thus convenient, flexible control
System.
As one embodiment of the present invention, judging that secondary audio acquires audio-frequency information collected is the first audio letter
The method of breath or the second audio-frequency information includes being judged by the way of image recognition, for example, if recognizing in classroom
There is student's standing, then can tentatively judge to need to acquire the second audio-frequency information, if stood without student, can tentatively judge
Currently only need to acquire the first audio-frequency information.
The audio remote interaction system provided according to the present invention, in embodiment as shown in Figure 1, including three-stage audio acquisition
Module (distal information transceiver interface) and level Four audio collection module (earphone of sound card exports)；
The three-stage audio acquisition module, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection module, thus into
Row is local to be played；The level Four audio collection module, on the one hand, communicated with three-stage audio acquisition module, receive three-stage audio and adopt
Collect the audio-frequency information that distal end transmitted by module is sent；On the other hand, it receives third audio-frequency information and is sent to local audio and broadcast
Amplification module plays；The third audio-frequency information is the audio-frequency information of local intelligent terminal；
The level Four audio collection module includes at least two level Four audio transmission channels, and from distal end, received audio-frequency information passes through
One of channel is sent to the broadcasting of local audio playing module；It further include believing from third audio described in another channel back production
Breath, for being sent to distal end.
The audio remote interaction system further includes level-one audio collection module (near field wheat and far field wheat), secondary audio
Acquisition module (input of sound card line) and three-stage audio acquisition module (the local acquisition to far-end audio information)；
The level-one audio-frequency module includes the first audio collection unit (near field wheat) and the second audio collection unit (far field wheat)；Institute
Stating secondary audio acquisition module includes acquisition level-one audio collection audio-frequency information collected, is local audio information；Described three
Grade audio collection module includes the audio-frequency information that acquisition distal end is sent；Secondary audio acquisition module first audio collected
Information and the second audio-frequency information are played without local audio；The three-stage audio acquisition module and local audio playing module are logical
Letter；The secondary audio acquisition module carries out mutual exclusion acquisition to the first audio-frequency information and the second audio-frequency information in synchronization；Also
Including echo cancellation module, part or all of level-one audio-frequency information collected to secondary audio acquisition module carries out echo cancellation
Afterwards, it retransmits to distal end.
In present invention embodiment shown in FIG. 1, local device includes local computing, and local computing includes sound card line defeated
Enter, the output of sound card earphone, intelligent interaction module and distal information transceiver interface；Local device further includes for picking up teacher's sound
Near field wheat, for picking up the far field wheat of student's sound, the first power amplifier communicated near field wheat, the second function communicated with far field wheat
It puts, the right channel that the audio-frequency information that far field wheat is picked up is inputted by being transmitted to sound card line after the second power amplifier, what near field wheat was picked up
Audio-frequency information is transmitted to the L channel that sound card line is inputted after passing through the first power amplifier, and sound card line input L channel and right channel are adopted
The audio-frequency information of collection is retransmited to distal information transceiver interface to distal end by intelligent interaction module and is sent.Sound card earphone output packet
L channel and right channel are included, as a kind of embodiment, right channel is used to acquire the audio-frequency information that distal end sends over, L channel
For back production third audio-frequency information (i.e. local computing sound).
Local device further includes audio-frequence player device, receives the audio-frequency information of the first power amplifier output and plays out.Intelligence
Interactive module receives the audio-frequency information that distal end sends over by distal information transceiver interface, and is sent to the earphone output of sound card
Right channel, retransmit to the first power amplifier, to be sent to audio-frequence player device in local broadcasting.On the one hand, local computing
The first power amplifier is sent to after the earphone output that audio-frequency information passes through sound card；On the other hand, earphone of the intelligent interaction module from sound card
After the audio-frequency information for exporting back production local computing, distal end is sent to by distal information transceiver interface and is played.
Wherein, as embodiment of the present invention, intelligent interaction module by received sound card line input L channel and/or
After the audio-frequency information echo cancellation of right channel acquisition, then it is sent to distal information transceiver interface and is sent to distal end.
Audio remote interaction method and system of the invention are not limited in the case where embodiment medium-long range is imparted knowledge to students, equally
It can be suitable for the situation that teleconference etc. needs remote audio interaction.Using embodiment of the present invention, can effectively ensure that
Audio quality in remote audio interactive process, reaches better audio result of broadcast at the defects of effectivelying prevent echo, audio mixing.
Claims (10)
1. audio remote interaction method, including three-stage audio acquisition and level Four audio collection；
The three-stage audio acquisition, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection, to carry out local broadcast
It puts；The level Four audio collection, on the one hand, receive the audio-frequency information that the transmitted distal end of three-stage audio acquisition is sent；Another party
Face receives third audio-frequency information and is sent to the broadcasting of local audio playing module；The third audio-frequency information is that local intelligent is whole
The audio-frequency information at end；
The level Four audio collection includes at least two level Four audio collection channels, from the received audio-frequency information in distal end by wherein
One channel is sent to the broadcasting of local audio playing module；It further include, from third audio-frequency information described in another channel back production, using
In be sent to distal end.
2. audio remote interaction method according to claim 1, level Four audio collection channel includes L channel and right channel,
It exports for the sound card of smart machine, using the output of one of sound channel from the received audio-frequency information in distal end, is returned from another sound channel
It is used in the third audio-frequency information for being sent to distal end.
3. audio remote interaction method according to claim 1 or 2 further includes that level-one audio collection and secondary audio are adopted
Collection；The level-one audio collection includes the acquisition of the first audio-frequency information and the acquisition of the second audio-frequency information；The secondary audio is adopted
Collection includes acquisition level-one audio collection audio-frequency information collected, is local audio information.
4. audio remote interaction method according to claim 3, the secondary audio acquires the first audio letter collected
Breath and the second audio-frequency information are played without local audio.
5. audio remote interaction method according to claim 3, the secondary audio acquisition is in synchronization to the first sound
Frequency information and the second audio-frequency information carry out mutual exclusion acquisition.
6. audio remote interaction method according to claim 3, first collected to secondary audio acquisition part or all of
Level-one audio-frequency information carry out echo cancellation after, then to distal end send.
7. audio remote interaction method according to claim 5, the method before secondary audio acquisition further includes judging two
Grade audio collection audio-frequency information collected is the first audio-frequency information or the second audio-frequency information, if it is the first audio-frequency information,
The second audio-frequency information acquisition link is then cut off, if it is the second audio-frequency information, then cuts off the first audio-frequency information acquisition link；It is described
First audio-frequency information acquisition link is the acquisition link that the first audio-frequency information is sent to secondary audio acquisition；The second audio letter
Breath acquisition link is the acquisition link that the second audio-frequency information is sent to secondary audio acquisition.
8. audio remote interaction method according to claim 7, the method also includes, the secondary audio acquisitions to the
When one audio-frequency information and the second audio-frequency information are acquired, it is acquired using different sound channels；The first audio-frequency information is cut off to adopt
The method of collection link and/or the second audio-frequency information acquisition link includes the first audio-frequency information in corresponding cutting secondary audio acquisition
And/or second audio-frequency information transmission sound channel.
9. audio remote interaction method according to claim 5 judges that secondary audio acquires audio-frequency information collected and is
The method of first audio-frequency information or the second audio-frequency information includes acquiring phonetic order information, is judged according to phonetic order information.
10. audio remote interaction system, which is characterized in that including three-stage audio acquisition module and level Four audio collection module；
The three-stage audio acquisition module, the audio-frequency information that acquisition distal end is sent are sent to level Four audio collection module, thus into
Row is local to be played；The level Four audio collection module, on the one hand, communicated with three-stage audio acquisition module, receive three-stage audio and adopt
Collect the audio-frequency information that distal end transmitted by module is sent；On the other hand, it receives third audio-frequency information and is sent to local audio and broadcast
Amplification module plays；The third audio-frequency information is the audio-frequency information of local intelligent terminal；
The level Four audio collection module includes at least two level Four audio transmission channels, and from distal end, received audio-frequency information passes through
One of channel is sent to the broadcasting of local audio playing module；It further include believing from third audio described in another channel back production
Breath, for being sent to distal end.
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