CN102523356A - Method and device for detecting sound of meeting passages - Google Patents
Method and device for detecting sound of meeting passages Download PDFInfo
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- CN102523356A CN102523356A CN2011104342362A CN201110434236A CN102523356A CN 102523356 A CN102523356 A CN 102523356A CN 2011104342362 A CN2011104342362 A CN 2011104342362A CN 201110434236 A CN201110434236 A CN 201110434236A CN 102523356 A CN102523356 A CN 102523356A
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Abstract
The invention discloses a method and a device for detecting sound of meeting passages. The method for detecting sound of the meeting passages includes steps of detecting time of silence of the meeting passages, judging whether the time of silence is longer than the first preset time, defining that no sound exists in the meeting passage if the time of silence is larger than the first preset time, while defining that sound exists in the meeting passages if the time of silence is shorter than or equal to the first preset time. By the aid of the method and the device for detecting sound of the meeting passages, the meeting passages with sound can be defined, the range of the meeting passages with problems can also be defined, and time consumption for defining the meeting passages with problems in the range by the method is short.
Description
Technical field
The present invention relates to detection range, in particular to a kind of method and apparatus that detects the meeting channel sound.
Background technology
In the telecommunication voice business, the circuit path in the meeting needs only two-way entering meeting, just can carry out the hearsay of meeting.As shown in Figure 1, circuit A, B, C represent 3 telephone subscribers, and circuit is two-way connection, and each circuit is divided into calling and outgoing from the exchange angle, also promptly succeeds in reaching an agreement and auditory pathway.The exchange principle of videoconference is: after succeeding in reaching an agreement of circuit carried out audio mixing, be connected to the auditory pathway of circuit, realization is given the function that all circuit are listened with all callings.
In videoconference, the sound that in circuit path, exists noise or influential meeting to carry out needs this passage is removed.
At present; To need to confirm in the meeting method of the circuit path removed to be: earlier all passages in the meeting all to be made as audience's state (promptly cut off succeed in reaching an agreement meeting); Meeting is quiet at once, and then one by one it is made as hearsay state (it is said that promptly passage arrives meeting), and meeting has sound gradually; Wherein which passage has abnormal sound, confirms that this passage has problem dismountable.
But more in the meeting number, promptly under the more situation of meeting passage, the method for this problem identificatioin circuit path needs the long period, can't judge immediately which passage is the problem passage in the meeting.
To the problem of length consuming time during problem identificatioin meeting passage in the correlation technique, effective solution is not proposed as yet at present.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and apparatus that detects the meeting channel sound, the problem of length consuming time during with solution problem identificatioin circuit path.
To achieve these goals, according to an aspect of the present invention, a kind of method that detects the meeting channel sound is provided.
Method according to detection meeting channel sound of the present invention comprises: detect the time that the maintenance of meeting passage is mourned in silence; Judge and keep the silence period whether greater than first Preset Time; When keeping the silence period, confirm that there is not sound in the meeting passage greater than first Preset Time; And, confirm that there is sound in the meeting passage when keeping the silence period to be less than or equal to first Preset Time.
Further, detecting the times prior that the maintenance of meeting passage is mourned in silence, this method also comprises: calculate the energy of signal in the interior meeting passage of second Preset Time, wherein, second Preset Time is less than first Preset Time; Whether the energy of judging signal in the meeting passage is less than preset energy; And when the energy of signal is less than preset energy in the meeting passage, confirm that the meeting passage keeps mourning in silence.
Further, calculate in second Preset Time that the energy of signal comprises in the meeting passage: the frequecy characteristic that extracts signal in the meeting passage; Whether the frequecy characteristic of judging signal in the meeting passage comprises the frequency preset characteristic; And when the frequecy characteristic of signal in the meeting passage does not comprise the frequency preset characteristic, calculate the energy of signal in the meeting passage.
Further, when the frequecy characteristic of signal in the meeting passage comprises the frequency preset characteristic, break off succeeding in reaching an agreement of meeting passage.
Further, frequency preset is characterized as the frequecy characteristic of the dtmf signal of user key-press generation.
Further, after there was sound in definite meeting passage, this method also comprised: the display channel icon, wherein, the passage icon is used to represent that the user of meeting passage makes a speech.
To achieve these goals, according to a further aspect in the invention, a kind of device that detects the meeting channel sound is provided, this device is used to carry out provided by the invention any one and detects the method for meeting channel sound.
To achieve these goals, according to a further aspect in the invention, a kind of device that detects the meeting channel sound is provided.Device according to detection meeting channel sound of the present invention comprises: detection module is used to detect the time that the maintenance of meeting passage is mourned in silence; Whether first judge module is used for judging keeping the silence period greater than first Preset Time; First determination module is used for confirming that when keeping the silence period greater than first Preset Time there is not sound in the meeting passage; And second determination module, be used for confirming that when keeping the silence period be less than or equal to first Preset Time there is sound in the meeting passage.
Further, also comprise according to the device of detection meeting channel sound of the present invention: computing module, be used for calculating the energy of meeting passage signal in second Preset Time, wherein, said second Preset Time is less than said first Preset Time; Second judge module, whether the energy that is used for judging meeting passage signal is less than preset energy; And the 3rd determination module, be used for during less than preset energy, confirming that the meeting passage keeps mourning in silence at the energy of meeting passage signal.
Further, computing module comprises: extract submodule, be used for extracting the frequecy characteristic of meeting passage signal; Judge submodule, be used for judging whether the frequecy characteristic of meeting passage signal comprises the frequency preset characteristic; And calculating sub module, be used for when the frequecy characteristic of meeting passage signal does not comprise the frequency preset characteristic, calculate the energy of signal in the meeting passage.
Further, computing module also comprises: the control submodule, be used for when the frequecy characteristic of meeting passage signal comprises the frequency preset characteristic, and break off succeeding in reaching an agreement of meeting passage.
Further, frequency preset is characterized as the frequecy characteristic of the dtmf signal of user key-press generation.
Further, also comprise according to the device of detection meeting channel sound of the present invention: display module, be used for the display channel icon, wherein, the passage icon is used to represent that the user of meeting passage makes a speech.
Through the present invention, adopt the method for the detection meeting channel sound that may further comprise the steps: detect the time that the maintenance of meeting passage is mourned in silence; Judge the size that keeps the silence period and first Preset Time; When keeping the silence period, confirm that there is not sound in the meeting passage greater than first Preset Time; And when keeping the silence period to be less than or equal to first Preset Time; Confirm that there is sound in the meeting passage; Also promptly can confirm the to have problems scope of meeting passage; In this scope, adopt existing method problem identificatioin meeting passage weak point consuming time, thus the problem of length consuming time when having solved problem identificatioin meeting passage, and then reached the effect that shortens problem conference circuit passage query time.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the exchange principle sketch map according to the videoconference of correlation technique;
Fig. 2 is the block diagram according to the detection meeting channel sound device of the embodiment of the invention;
Fig. 3 is the flow chart according to the detection meeting channel sound of the embodiment of the invention; And
Fig. 4 is the flow chart according to the detection meeting channel sound method of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Fig. 2 is that as shown in Figure 2, this device comprises according to the block diagram of the detection meeting channel sound device of the embodiment of the invention: detection module 20, the first judge modules, 40, the first determination modules 60 and second determination module 80.
Whether 40 judgements of first judge module keep the silence period greater than first Preset Time, also promptly, read the time in the timer and judge this time and the magnitude relationship of first Preset Time.
Through hardware driving, be less than or equal to first Preset Time if find the time that keeps mourning in silence, just explain that this passage has speech activity at this time point; Do not have sound in lasting several seconds if the time of finding to keep mourning in silence, is just explained this passage greater than first Preset Time, represented that the current participant of not having uses this passage speech; Wherein, First Preset Time can adopt suitable value according to the characteristics of hardware condition and meeting itself, and alternatively, (concrete numerical value will be according to the performance requirement of hardware when the time that the maintenance of calling signal is mourned in silence surpasses 1000ms; Probably in this scope, float), export the incident of mourning in silence.
With the implementation that is equal to of this embodiment be: the speech activity retention time on the detection module 20 sense channel circuits; First judge module 40 judges that whether the retention time of speech activity is greater than the 3rd Preset Time; First determination module 60 confirms that in retention time of speech activity during greater than the 3rd Preset Time there is sound in the meeting passage; Second determination module 80 confirms that there is not sound in the meeting passage when the retention time of speech activity is less than or equal to the 3rd Preset Time.Preferably, in the calling signal, detected speech activity, and retention time when surpassing 32ms (concrete numerical value will probably float in this scope according to the performance requirement of hardware), speech events just exported.
In this embodiment; Through judging whether definite meeting passage of time that meeting is mourned in silence has sound; Confirm that there is sound in the meeting passage, also promptly can in all meeting passages, confirm the scope of in-problem meeting passage, in this scope, adopt existing method problem identificatioin meeting passage weak point consuming time; Thereby the problem of length consuming time when having solved problem identificatioin meeting passage, and then reached the effect that shortens problem conference circuit passage query time.
In the meeting passage; The energy of line channel noise is lower than the real speech signal, in order to distinguish line channel noise and real voice signal, preferably; This device also comprises: computing module calculates the energy of signal in the meeting passage in second Preset Time; Whether second judge module judges the energy of signal in the meeting passage less than preset energy, and the energy of the 3rd determination module signal in the meeting passage confirms that the meeting passage keeps mourning in silence during less than preset energy; When the energy of signal is more than or equal to preset energy in the meeting passage, confirm that there are voice in the meeting passage.
Adopt this preferred implementation, confirm through judging signal energy whether the meeting passage has speech activity, also promptly utilize noise filtering to distinguish line channel noise and real voice signal.Noise gate (promptly preset energy) through noise filtering is set when the intensity of calling signal or outgoing signal is lower than the setting thresholding, can be judged as circuit noise, and noise gate is relevant with the phonetic algorithm of hardware DSP.Through the sensitivity of noise filtering is set, can improve the processing speed of noise filtering, being provided with the performance requirement of hardware of sensitivity is higher, can determine according to actual conditions.
In the meeting passage, possibly exist signal energy greater than noise signal energy but the signal of non-speech audio, the dtmf signal that produces when for example using button on the phone.The existence of these signals has influence on the accuracy of signal calculated energy, thereby the accuracy of meeting passage maintenance silence period size is judged in influence, and preferably, computing module comprises: extract submodule, be used for extracting the frequecy characteristic of meeting passage signal; Judge submodule, be used for judging whether the frequecy characteristic of meeting passage signal comprises the frequency preset characteristic, wherein, the actual behaviour in service of frequency preset feature meeting passage is definite, for example the frequecy characteristic of dtmf signal; And calculating sub module, be used for when the frequecy characteristic of meeting passage signal does not comprise the frequency preset characteristic, calculate the energy of signal in the meeting passage.
Adopt this preferred implementation; In calculating the meeting passage, during the energy of signal, when the frequecy characteristic of signal does not comprise the frequency preset characteristic in the meeting passage, calculate the energy of signal in the meeting passage; The mode that makes definite meeting passage maintenance mourn in silence is more accurate; When the meeting passage goes wrong, can in all meeting passages, confirm the scope of the in-problem meeting passage of possibility accurately; In this scope, seek problem meeting passage, shorten the query time of problem conference circuit passage.
Common, the preset characteristic that is characterized as dtmf signal.Dtmf signal is meant the 0-9 on the substation, and buttons such as * #, some application function in the meeting are need pass through the user to trigger button and could realize, begin function like the recording in the meeting, receive that exactly the * 940# of passage is inchoate.When the people of conference participation carried out button operation on phone, the dtmf signal sound on the circuit can get into the meeting audio mixing, is heard by other passage, influences the judgement of meeting sound, needed to filter the dtmf signal that button produces.
Can provide in the frequecy characteristic of checking input signal whether comprise dtmf signal, be because the DTMF character has particular frequencies, can prevent the dtmf signal erroneous judgement is voice signal through frequecy characteristic.When the DTMF detector on the passage detected dtmf signal on the meeting passage, the control submodule in the computing module broke off succeeding in reaching an agreement of meeting passage immediately, also promptly broke off the calling signal of this passage; After dtmf signal disappears, recover the calling signal automatically.So both receive dtmf signal, and can not send it to meeting again.
The conference administrator judges the passage at the abnormal sound place in the meeting for ease; Preferably, when the time that the maintenance of meeting passage is mourned in silence is less than or equal to first preset value, also promptly there is voice signal in this meeting passage; The user makes a speech; Through display module (like man-machine interface) display channel icon (be the voice signal image, for example in corresponding conference users, show the loudspeaker image), when time that the meeting passage keeps mourning in silence during greater than first preset value; When promptly not having voice signal in this meeting passage yet, display word tone signal image not on man-machine interface.Like this conference administrator just can the real-time judge active conference in which passage sound is arranged, thereby the speech situation in the quick check meeting and is judged and is removed the passage at the place of the abnormal sound in the meeting.
Through this preferred implementation; The conference administrator can operate like this: can see that through display module the image that shows loudspeaker is arranged in the conference users; This just represents, and this subscriber channel is current makes a speech, and can not all users speak simultaneously during meeting, general maximum 2 to 3 people that have.If abnormal sound is arranged in the meeting; Just must be to show among the user of loudspeaker image, can this several users be made as audience's state (promptly cut off succeed in reaching an agreement meeting) one by one, meeting be if there has been abnormal sound at once; Just explain that this passage has abnormal sound, can it be made as audience's state or dismounting.
Fig. 3 is that as shown in Figure 3, meeting begins: meeting presider and participant get into meeting successively according to the flow chart of the detection meeting channel sound of the embodiment of the invention.The meeting presider requires to judge which user is speaking in the meeting.Systems soft ware is regularly retrieved the time that the maintenance of each passage of meeting is mourned in silence.The time that the maintenance of each passage that system software analysis obtains is mourned in silence,, just these channel number packings are sent to interface processing software if the time that discovery has the maintenance of passage to mourn in silence is less than or equal to first Preset Time.Interface processing software is according to channel number, and the conference users with correspondence in the meeting interface shows the loudspeaker image, and other not corresponding conference users reverts to normal picture.Whether also have other user in the system software checks for meeting,, regularly retrieve the time that the maintenance of each passage of meeting is mourned in silence if also have other user.If there is not other user, just meeting adjourned for meaning, finishes retrieval.
Fig. 4 is the flow chart according to the detection meeting channel sound method of the embodiment of the invention.As shown in Figure 4, this method comprises that following step S102 is to step S108:
Step S102: detect the time that the maintenance of meeting passage is mourned in silence, this step can realize through the detection module in the above-mentioned detection meeting channel sound device.
Lead to the times prior that maintenance is mourned in silence in the detection meeting, will confirm at first whether the meeting passage mourns in silence.Alternatively, can pass through the size of signal energy and judge whether the meeting passage mourns in silence, or judge directly the signal power judges whether the meeting passage mourns in silence in the meeting passage, the alternate manner that also can pass through in the signal processing method judges whether the meeting announcement mourns in silence.Can adopt the mode of timer, after meeting began, when confirming that the meeting passage keeps mourning in silence, the timer timing increased, when definite meeting passage is not silent status, and timer timing zero clearing.Regularly (be chosen as 1 second) and read the time in the timer, the time (unit second) that the maintenance of each passage of retrieval meeting is mourned in silence.
Step S104: judge to keep the silence period whether greater than first Preset Time, when keeping the silence period greater than first Preset Time, execution in step S106, otherwise execution in step S108.This step can realize through first judge module in the above-mentioned detection meeting channel sound device.
Step S106: confirm that there is not sound in the meeting passage; When keeping the silence period greater than first Preset Time; Confirm that there is not sound in the meeting passage, the sound that do not exist here only representes that the current participant of not having uses the speech of this passage, is not meant definitely noiseless in this meeting passage.
Step S108: confirm that there is sound in the meeting passage, keeping the silence period to be less than or equal to first Preset Time, confirm that there is sound in the meeting passage, correspondingly, the sound that exists here representes to have the participant using this passage speech.
Through hardware driving, be less than or equal to first Preset Time if find the time that keeps mourning in silence, just explain that there is speech activity in this passage at this time point; Do not have sound in lasting several seconds if the time of finding to keep mourning in silence, is just explained this passage greater than first Preset Time, represented that the current participant of not having uses this passage speech; Wherein, First Preset Time can adopt suitable value according to the characteristics of hardware condition and meeting itself, and alternatively, (concrete numerical value will be according to the performance requirement of hardware when the time that the maintenance of calling signal is mourned in silence surpasses 1000ms; Probably in this scope, float), export the incident of mourning in silence.
With the implementation that is equal to of this embodiment be: the speech activity retention time on the sense channel circuit; Whether the retention time of judging speech activity is greater than the 3rd Preset Time; In retention time of speech activity during, confirm that there is sound in the meeting passage greater than the 3rd Preset Time; When the retention time of speech activity is less than or equal to the 3rd Preset Time, confirm that there is not sound in the meeting passage.Preferably, in the calling signal, detected speech activity, and retention time when surpassing 32ms (concrete numerical value will probably float in this scope according to the performance requirement of hardware), speech events just exported.
In this embodiment; Through judging whether definite meeting passage of time that meeting is mourned in silence has sound; Confirm that there is sound in the meeting passage, also promptly can in all meeting passages, confirm the scope of in-problem meeting passage, in this scope, adopt existing method problem identificatioin meeting passage weak point consuming time; Thereby the problem of length consuming time when having solved problem identificatioin meeting passage, and then reached the effect that shortens problem conference circuit passage query time.
In the meeting passage, the energy of line channel noise is lower than the real speech signal, in order to distinguish line channel noise and real voice signal; Preferably; Before step S102, this method also comprises: in second Preset Time, calculate the energy of signal in the meeting passage; Whether the energy of judging signal in the meeting passage is less than preset energy; And when the energy of signal is less than preset energy in the meeting passage, confirm that the meeting passage keeps mourning in silence.
Adopt this preferred implementation, confirm through judging signal energy whether the meeting passage has speech activity, also promptly utilize noise filtering to distinguish line channel noise and real voice signal.Noise gate (promptly preset energy) through noise filtering is set when the intensity of calling signal or outgoing signal is lower than the setting thresholding, can be judged as circuit noise, and noise gate is relevant with the phonetic algorithm of hardware DSP.Through the sensitivity of noise filtering is set, can improve the processing speed of noise filtering, being provided with the performance requirement of hardware of sensitivity is higher, can determine according to actual conditions.
In the meeting passage, possibly exist signal energy greater than noise signal energy but the signal of non-speech audio, the dtmf signal that produces when for example using button on the phone.The existence of these signals has influence on the accuracy of signal calculated energy, thereby the accuracy of meeting passage maintenance silence period size is judged in influence, and preferably, the energy that calculates signal in the meeting passage comprises: the frequecy characteristic that extracts signal in the meeting passage; Whether the frequecy characteristic of judging signal in the meeting passage comprises the frequency preset characteristic, and wherein, the actual behaviour in service of frequency preset feature meeting passage is definite, for example the frequecy characteristic of dtmf signal; And when the frequecy characteristic of signal in the meeting passage does not comprise the frequency preset characteristic, calculate the energy of signal in the meeting passage.
Adopt this preferred implementation; In calculating the meeting passage, during the energy of signal, when the frequecy characteristic of signal does not comprise the frequency preset characteristic in the meeting passage, calculate the energy of signal in the meeting passage; The mode that makes definite meeting passage maintenance mourn in silence is more accurate; When the meeting passage goes wrong, can in all meeting passages, confirm the scope of the in-problem meeting passage of possibility accurately; In this scope, seek problem meeting passage, shorten the query time of problem conference circuit passage.
Common, the preset characteristic that is characterized as dtmf signal.Dtmf signal is meant the 0-9 on the substation, and buttons such as * #, some application function in the meeting are need pass through the user to trigger button and could realize, begin function like the recording in the meeting, receive that exactly the * 940# of passage is inchoate.When the people of conference participation carried out button operation on phone, the dtmf signal sound on the circuit can get into the meeting audio mixing, is heard by other passage, influences the judgement of meeting sound, needed to filter the dtmf signal that button produces.
Can provide in the frequecy characteristic of checking input signal whether comprise dtmf signal, be because the DTMF character has particular frequencies, can prevent the dtmf signal erroneous judgement is voice signal through frequecy characteristic.When the DTMF detector on the passage detects dtmf signal on the meeting passage, break off succeeding in reaching an agreement of meeting passage immediately, also promptly break off the calling signal of this passage; After dtmf signal disappears, recover the calling signal automatically.So both receive dtmf signal, and can not send it to meeting again.
The conference administrator judges the passage at the abnormal sound place in the meeting for ease; Preferably, when the time that the maintenance of meeting passage is mourned in silence is less than or equal to first preset value, also promptly there is voice signal in this meeting passage; The user makes a speech; Man-machine interface display channel icon (be the voice signal image, for example in corresponding conference users, show the loudspeaker image) is when time that the meeting passage keeps mourning in silence during greater than first preset value; When promptly not having voice signal in this meeting passage yet, display word tone signal image not on man-machine interface.Like this conference administrator just can the real-time judge active conference in which passage sound is arranged, thereby the speech situation in the quick check meeting and is judged and is removed the passage at the place of the abnormal sound in the meeting.
From above description; Can find out; The embodiment of the invention has realized following technique effect: pass through regularly to retrieve the time that the maintenance of each passage of meeting is mourned in silence, which passage really has sound in the real-time judge active conference, the scope of the meeting passage of also promptly can confirming to have problems; In this scope, adopt existing method problem identificatioin meeting passage weak point consuming time, can investigate problem meeting passage fast.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a method that detects the meeting channel sound is characterized in that, comprising:
Detect the time that said meeting passage maintenance is mourned in silence;
Judge that whether the said maintenance silence period is greater than first Preset Time;
When the said maintenance silence period greater than said first Preset Time, confirm that there is not sound in said meeting passage;
And
Be less than or equal to said second Preset Time when the said maintenance silence period, confirm that there is sound in said meeting passage.
2. the method for detection meeting channel sound according to claim 1 is characterized in that, is detecting the times prior that said meeting passage maintenance is mourned in silence, and said method also comprises:
Calculate in second Preset Time energy of signal in the said meeting passage, wherein, said second Preset Time is less than said first Preset Time;
Whether the energy of judging signal in the said meeting passage is less than preset energy; And
When the energy of signal is less than said preset energy in said meeting passage, confirm that said meeting passage keeps mourning in silence.
3. the method for detection meeting channel sound according to claim 2 is characterized in that, calculates in second Preset Time energy of signal in the said meeting passage:
Extract the frequecy characteristic of signal in the said meeting passage;
Whether the frequecy characteristic of judging signal in the said meeting passage comprises the frequency preset characteristic; And
When the frequecy characteristic of signal in the said meeting passage does not comprise said frequency preset characteristic, calculate the energy of signal in the said meeting passage.
4. the method for detection meeting channel sound according to claim 3 is characterized in that, when the frequecy characteristic of signal in the said meeting passage comprises said frequency preset characteristic, breaks off succeeding in reaching an agreement of said meeting passage.
5. according to the method for claim 2 or 3 described detection meeting channel sound, it is characterized in that said frequency preset is characterized as the frequecy characteristic of the dtmf signal of user key-press generation.
6. the method for detection meeting channel sound according to claim 1; It is characterized in that after there was sound in definite said meeting passage, said method also comprised: the display channel icon; Wherein, said passage icon is used to represent that the user of said meeting passage makes a speech.
7. a device that detects the meeting channel sound is characterized in that, comprising:
Detection module is used to detect the time that said meeting passage maintenance is mourned in silence;
First judge module is used to judge that whether the said maintenance silence period is greater than first Preset Time;
First determination module is used for working as the said maintenance silence period greater than said first Preset Time, confirms that there is not sound in said meeting passage; And
Second determination module is used for being less than or equal to said first Preset Time when the said maintenance silence period, confirms that there is sound in said meeting passage.
8. the device of detection meeting channel sound according to claim 7 is characterized in that, also comprises:
Computing module is used for calculating the energy of said meeting passage signal in second Preset Time, and wherein, said second Preset Time is less than said first Preset Time;
Second judge module, whether the energy that is used for judging said meeting passage signal is less than preset energy; And
The 3rd determination module is used for during less than said preset energy, confirming that said meeting passage keeps mourning in silence at the energy of said meeting passage signal.
9. the device of detection meeting channel sound according to claim 8 is characterized in that, said computing module comprises:
Extract submodule, be used for extracting the frequecy characteristic of said meeting passage signal;
Judge submodule, be used for judging whether the frequecy characteristic of said meeting passage signal comprises the frequency preset characteristic; And
Calculating sub module when being used for frequecy characteristic when said meeting passage signal and not comprising said frequency preset characteristic, is calculated the energy of signal in the said meeting passage.
10. the device of detection meeting channel sound according to claim 9 is characterized in that, said computing module also comprises:
The control submodule when being used for frequecy characteristic when said meeting passage signal and comprising said frequency preset characteristic, breaks off succeeding in reaching an agreement of said meeting passage.
11. according to Claim 8 or the device of 9 described detection meeting channel sound, it is characterized in that said frequency preset is characterized as the frequecy characteristic of the dtmf signal that user key-press produces.
12. the device of detection meeting channel sound according to claim 7 is characterized in that, also comprises:
Display module is used for the display channel icon, and wherein, said passage icon is used to represent that the user of said meeting passage makes a speech.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105529038A (en) * | 2014-10-21 | 2016-04-27 | 阿里巴巴集团控股有限公司 | Method and system for processing users' speech signals |
| CN111050265A (en) * | 2019-11-27 | 2020-04-21 | 深圳易科声光科技股份有限公司 | Automatic audio link detection method and device |
| CN111899726A (en) * | 2020-07-28 | 2020-11-06 | 上海喜日电子科技有限公司 | Audio processing method and device, electronic equipment and storage medium |
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| CN102523356B (en) | 2015-04-15 |
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