CN102523356B - 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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- CN102523356B CN102523356B CN201110434236.2A CN201110434236A CN102523356B CN 102523356 B CN102523356 B CN 102523356B CN 201110434236 A CN201110434236 A CN 201110434236A CN 102523356 B CN102523356 B CN 102523356B
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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 field, in particular to a kind of method and apparatus detecting sound of meeting passages.
Background technology
In telecommunication voice business, as long as the circuit path mutual entry meeting in meeting, just hearing of meeting can be carried out.As shown in Figure 1, circuit A, B, C represent 3 telephone subscribers, and circuit is bi-directionally connected, and each circuit is divided into calling and outgoing from exchange angle, also namely succeeds in reaching an agreement and auditory pathway.The exchange principle of videoconference is: by after the succeeding in reaching an agreement and carry out audio mixing of circuit, be connected to the auditory pathway of circuit, realizes all callings to give the function that all circuit are listened.
In videoconference, when there is noise in circuit path or having the sound affecting meeting and carry out, need this passage to remove.
At present, determine to need in meeting the method for the circuit path removed be: first passages all in meeting to be all set to audience's state (namely cut off succeed in reaching an agreement meeting), meeting is quiet at once, and then be set to the state of hearing (namely hearing that passage arrives meeting) one by one, meeting has sound gradually, wherein which passage has abnormal sound, determines that this passage has problem dismountable.
But more in meeting number, when namely meeting passage is more, the method for this problem identificatioin circuit path needs the long period, cannot judge in meeting, which passage is problem passage immediately.
For the problem of length consuming time during problem identificatioin meeting passage in correlation technique, at present effective solution is not yet proposed.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and apparatus detecting sound of meeting passages, the problem of length consuming time during to solve problem identificatioin circuit path.
To achieve these goals, according to an aspect of the present invention, a kind of method detecting sound of meeting passages is provided.
Method according to detection sound of meeting passages of the present invention comprises: detect the time that meeting passage keeps mourning in silence; Judge to keep the silence period whether to be greater than the first Preset Time; Be greater than the first Preset Time when the maintenance silence period, determine that meeting passage does not exist sound; And when keeping the silence period to be less than or equal to the first Preset Time, determine that meeting passage exists sound.
Further, before detection meeting passage keeps the time of mourning in silence, the method also comprises: the energy calculating signal in meeting passage in the second Preset Time, and wherein, the second Preset Time is less than the first Preset Time; Judge whether the energy of signal in meeting passage is less than preset energy; And when the energy of signal is less than preset energy in meeting passage, determine that meeting passage keeps mourning in silence.
Further, the energy calculating signal in meeting passage in the second Preset Time comprises: the frequecy characteristic extracting signal in meeting passage; Judge whether the frequecy characteristic of signal in meeting passage comprises default frequecy characteristic; And when the frequecy characteristic of signal does not comprise default frequecy characteristic in meeting passage, calculate the energy of signal in meeting passage.
Further, when the frequecy characteristic of signal comprises default frequecy characteristic in meeting passage, disconnect succeeding in reaching an agreement of meeting passage.
Further, the frequecy characteristic preset is the frequecy characteristic of the dtmf signal that user key-press produces.
Further, after determining that meeting passage exists sound, the method also comprises: display channel icon, and wherein, passage icon is for representing that the user of meeting passage makes a speech.
To achieve these goals, according to a further aspect in the invention, provide a kind of device detecting sound of meeting passages, this device is for performing the method for any one detection sound of meeting passages provided by the invention.
To achieve these goals, according to a further aspect in the invention, a kind of device detecting sound of meeting passages is provided.Device according to detection sound of meeting passages of the present invention comprises: detection module, for detecting the time that meeting passage keeps mourning in silence; First judge module, keeps the silence period whether to be greater than the first Preset Time for judging; First determination module, for when keeping the silence period to be greater than the first Preset Time, determines that meeting passage does not exist sound; And second determination module, for when keeping the silence period be less than or equal to the first Preset Time, determine that meeting passage exists sound.
Further, the device according to detection sound of meeting passages of the present invention also comprises: computing module, and for calculating the energy of signal in meeting passage in the second Preset Time, wherein, described second Preset Time is less than described first Preset Time; Second judge module, for judging whether the energy of signal in meeting passage is less than preset energy; And the 3rd determination module, when the energy for signal in meeting passage is less than preset energy, determine that meeting passage keeps mourning in silence.
Further, computing module comprises: extract submodule, for extracting the frequecy characteristic of signal in meeting passage; Judge submodule, for judging whether the frequecy characteristic of signal in meeting passage comprises default frequecy characteristic; And calculating sub module, for when the frequecy characteristic of signal does not comprise default frequecy characteristic in meeting passage, calculate the energy of signal in meeting passage.
Further, computing module also comprises: control submodule, for when the frequecy characteristic of signal comprises default frequecy characteristic in meeting passage, disconnects succeeding in reaching an agreement of meeting passage.
Further, the frequecy characteristic preset is the frequecy characteristic of the dtmf signal that user key-press produces.
Further, the device according to detection sound of meeting passages of the present invention also comprises: display module, and for display channel icon, wherein, passage icon is for representing that the user of meeting passage makes a speech.
By the present invention, adopt the method for the detection sound of meeting passages comprised the following steps: detect the time that meeting passage keeps mourning in silence; Judge the size keeping silence period and the first Preset Time; Be greater than the first Preset Time when the maintenance silence period, determine that meeting passage does not exist sound; And when keeping the silence period to be less than or equal to the first Preset Time, determine that meeting passage exists sound, also the scope of existing problems meeting passage can namely be determined, within the scope of this, adopt existing method problem identificatioin meeting passage consuming time short, thus the problem of length consuming time when solving problem identificatioin meeting passage, and then reach the effect of shortening problem conference circuit passage query time.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the exchange principle schematic diagram of the videoconference according to correlation technique;
Fig. 2 is the block diagram of the detection sound of meeting passages device according to the embodiment of the present invention;
Fig. 3 is the flow chart of the detection sound of meeting passages according to the embodiment of the present invention; And
Fig. 4 is the flow chart of the detection sound of meeting passages method according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 2 is the block diagram of the detection sound of meeting passages device according to the embodiment of the present invention, and as shown in Figure 2, this device comprises: detection module 20, the first judge module 40, first determination module 60 and the second determination module 80.
Detection module 20 detects the time that meeting passage keeps mourning in silence, wherein, the size passing through signal energy judges whether meeting passage mourns in silence, or directly judge that in meeting passage, signal power is to judge whether meeting passage mourns in silence, also judge that meeting is noticed by the alternate manner in signal processing method and whether mourn in silence.The mode of timer can be adopted, after meeting starts, when determining that meeting passage keeps mourning in silence, increasing during timer, when determining that meeting passage is not silent status, resetting during timer.Regularly (be chosen as 1 second) and read the time in timer, the time (unit second) that the maintenance of each passage of retrieval meeting is mourned in silence.
First judge module 40 judges to keep the silence period whether to be greater than the first Preset Time, also, reads the time in timer and judges the magnitude relationship of this time and the first Preset Time.
First determination module 60 is when keeping the silence period to be greater than the first Preset Time, and determine that meeting passage does not exist sound, the sound that do not exist herein only represents that the current participant of not having uses this passage to make a speech, and what do not refer in this meeting passage is definitely noiseless.
Second determination module 80 is less than or equal to the first Preset Time in the maintenance silence period, and determine that meeting passage exists sound, correspondingly, the sound that exists herein indicates that participant is using this passage to make a speech.
Pass through hardware driving, the time of mourning in silence is kept to be less than or equal to the first Preset Time if find, just illustrate that this passage has speech activity at this time point, the time of mourning in silence is kept to be greater than the first Preset Time if find, just illustrate that this passage has continued not have sound in several seconds, represent that the current participant of not having uses this passage to make a speech, wherein, first Preset Time can adopt suitable value according to the feature of hardware condition and meeting itself, alternatively, when calling signal keeps time of mourning in silence, more than during 1000ms, (concrete numerical value will according to the performance requirement of hardware, general floating within the scope of this), output is mourned in silence event.
With the equivalent implementations of this embodiment be: the speech activity retention time on detection module 20 sense channel circuit; First judge module 40 judges whether the retention time of speech activity is greater than the 3rd Preset Time; First determination module 60, when the retention time of speech activity is greater than the 3rd Preset Time, determines that meeting passage exists sound; Second determination module 80, when the retention time of speech activity is less than or equal to the 3rd Preset Time, determines that meeting passage does not exist sound.Preferably, when detecting speech activity in calling signal, and the retention time is more than (concrete numerical value according to the performance requirement of hardware, probably will float within the scope of this) during 32ms, just exports speech events.
In this embodiment, by judging that the time that meeting is mourned in silence determines whether meeting passage has sound, determine that meeting passage exists sound, also the scope of in-problem meeting passage namely can be determined in all meeting passages, within the scope of this, adopt existing method problem identificatioin meeting passage consuming time short, thus the problem of length consuming time when solving problem identificatioin meeting passage, and then reach the effect of shortening problem conference circuit passage query time.
In meeting passage, the energy of line channel noise is lower than actual 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 meeting passage in the second Preset Time, second judge module judges whether the energy of signal in meeting passage is less than preset energy, when the energy of the 3rd determination module signal in meeting passage is less than preset energy, determines that meeting passage keeps mourning in silence; When the energy of signal is more than or equal to preset energy in meeting passage, determine that meeting passage exists voice.
Adopting this preferred implementation, by judging that signal energy determines whether meeting passage has speech activity, also namely utilizing noise filtering to distinguish line channel noise and real voice signal.By arranging the noise gate (i.e. preset energy) of noise filtering, when the intensity of calling signal or outgoing signal is lower than setting thresholding, can be judged as circuit noise, noise gate is relevant to the phonetic algorithm of hardware DSP.By arranging the sensitivity of noise filtering, can improve the processing speed of noise filtering, arranging the performance requirement of hardware of sensitivity is higher, can determine according to actual conditions.
In meeting passage, signal energy may be there is and be greater than noise signal energy but the signal of non-speech audio, such as, use the dtmf signal produced during button on phone.The existence of these signals has influence on the accuracy calculating signal energy, thus impact judges that meeting passage keeps the accuracy of silence period size, and preferably, computing module comprises: extract submodule, for extracting the frequecy characteristic of signal in meeting passage; Judge submodule, for judging whether the frequecy characteristic of signal in meeting passage comprises default frequecy characteristic, wherein, the frequecy characteristic preset is determined according to the actual behaviour in service of meeting passage, the frequecy characteristic of such as dtmf signal; And calculating sub module, for when the frequecy characteristic of signal does not comprise default frequecy characteristic in meeting passage, calculate the energy of signal in meeting passage.
Adopt this preferred implementation, when calculating the energy of signal in meeting passage, when in meeting passage, the frequecy characteristic of signal does not comprise default frequecy characteristic, calculate the energy of signal in meeting passage, make to determine that the mode that meeting passage keeps mourning in silence is more accurate, when meeting passage goes wrong, can in all meeting passages, determine the scope of the in-problem meeting passage of possibility accurately, within the scope of this, find problem meeting passage, shorten the query time of problem conference circuit passage.
Common, preset the feature being characterized as dtmf signal.The buttons such as dtmf signal refers to the 0-9 on substation, * #, some application function in meeting needs to pass through user's trigger key could realize, and as the recording in meeting starts function, the * 940# receiving passage is exactly inchoate.When the people of conference participation carries out button operation on phone, the dtmf signal sound on circuit can enter meeting audio mixing, is heard by other passage, affects the judgement of meeting sound, needs the dtmf signal filtering button generation.
Can provide in the frequecy characteristic checking input signal and whether comprise dtmf signal, be because DTMF character has particular frequencies, dtmf signal can be prevented to be mistaken for voice signal by frequecy characteristic.When the DTMF detector on passage detects dtmf signal on meeting passage, the control submodule in computing module disconnects succeeding in reaching an agreement of meeting passage immediately, also namely disconnects the calling signal of this passage; After dtmf signal disappears, automatically recover calling signal.Both receive dtmf signal like this, can not meeting be sent it to again.
Conveniently conference administrator judges the passage at the abnormal sound place in meeting, preferably, when meeting passage keeps the time of mourning in silence to be less than or equal to the first preset value, also namely there is voice signal in this meeting passage, user makes a speech, by display module (as man-machine interface) display channel icon (i.e. voice signal image, such as in corresponding conference users, show loudspeaker image), when meeting passage keeps the time of mourning in silence to be greater than the first preset value, when namely there is not voice signal in this meeting passage yet, not display word tone signal image in man-machine interface.Which passage such conference administrator just can have sound in real-time judge active conference, thus checks the speech situation in meeting fast, and judges the passage at the abnormal sound place in meeting and remove.
By this preferred implementation, conference administrator can operate like this: can be seen in conference users the image having display loudspeaker by display module, this just represents, and this subscriber channel is current makes a speech, and can not all users speak during meeting simultaneously, and generally maximum have 2 to 3 people.If have abnormal sound in meeting, must be just in the user of display loudspeaker image, these users can be set to one by one audience's state (namely cut off succeed in reaching an agreement meeting), if meeting is at once without abnormal sound, just illustrate that this passage has abnormal sound, audience's state or dismounting can be set to.
Fig. 3 is the flow chart of the detection sound of meeting passages according to the embodiment of the present invention, and as shown in Figure 3, meeting starts: meeting presider and participant enter meeting successively.Meeting presider requires to judge in meeting, which user is speaking.The time that the maintenance that each passage of meeting is retrieved in systems soft ware timing is mourned in silence.The time that the maintenance of each passage that system software analysis obtains is mourned in silence, if the time that the maintenance finding that there is passage is mourned in silence is less than or equal to the first Preset Time, just these channel number being packed is sent to interface processing software.Interface processing software is according to channel number, and by the conference users of correspondence display loudspeaker image in meeting interface, and other not corresponding conference users reverts to normal picture.Whether other user is also had in system software checks meeting, if also have other user, the time that the maintenance that each passage of meeting is retrieved in timing is mourned in silence.If do not have other user, just meeting adjourned for meaning, terminates retrieval.
Fig. 4 is the flow chart of the detection sound of meeting passages method according to the embodiment of the present invention.As shown in Figure 4, the method comprises following step S102 to step S108:
Step S102: detect the time that meeting passage keeps mourning in silence, this step realizes by the detection module in above-mentioned detection sound of meeting passages device.
Before leading in detection meeting the time keeping mourning in silence, first to determine whether meeting passage mourns in silence.Whether alternatively, the size by signal energy judges whether meeting passage mourns in silence, or directly judges that in meeting passage, signal power is to judge whether meeting passage mourns in silence, also judge that meeting is noticed by the alternate manner in signal processing method and mourn in silence.The mode of timer can be adopted, after meeting starts, when determining that meeting passage keeps mourning in silence, increasing during timer, when determining that meeting passage is not silent status, resetting during timer.Regularly (be chosen as 1 second) and read the time in 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 to be greater than the first Preset Time, be greater than the first Preset Time when the maintenance silence period, perform step S106, otherwise perform step S108.This step realizes by the first judge module in above-mentioned detection sound of meeting passages device.
Step S106: determine that meeting passage does not exist sound, when keeping the silence period to be greater than the first Preset Time, determine that meeting passage does not exist sound, the sound that do not exist herein only represents that the current participant of not having uses this passage to make a speech, and what do not refer in this meeting passage is definitely noiseless.
Step S108: determine that meeting passage exists sound, be less than or equal to the first Preset Time in the maintenance silence period, determine that meeting passage exists sound, correspondingly, the sound that exists herein indicates that participant is using this passage to make a speech.
Pass through hardware driving, the time of mourning in silence is kept to be less than or equal to the first Preset Time if find, just illustrate that this passage exists speech activity at this time point, the time of mourning in silence is kept to be greater than the first Preset Time if find, just illustrate that this passage has continued not have sound in several seconds, represent that the current participant of not having uses this passage to make a speech, wherein, first Preset Time can adopt suitable value according to the feature of hardware condition and meeting itself, alternatively, when calling signal keeps time of mourning in silence, more than during 1000ms, (concrete numerical value will according to the performance requirement of hardware, general floating within the scope of this), output is mourned in silence event.
With the equivalent implementations of this embodiment be: the speech activity retention time on sense channel circuit; Judge whether the retention time of speech activity is greater than the 3rd Preset Time; When the retention time of speech activity is greater than the 3rd Preset Time, determine that meeting passage exists sound; When the retention time of speech activity is less than or equal to the 3rd Preset Time, determine that meeting passage does not exist sound.Preferably, when detecting speech activity in calling signal, and the retention time is more than (concrete numerical value according to the performance requirement of hardware, probably will float within the scope of this) during 32ms, just exports speech events.
In this embodiment, by judging that the time that meeting is mourned in silence determines whether meeting passage has sound, determine that meeting passage exists sound, also the scope of in-problem meeting passage namely can be determined in all meeting passages, within the scope of this, adopt existing method problem identificatioin meeting passage consuming time short, thus the problem of length consuming time when solving problem identificatioin meeting passage, and then reach the effect of shortening problem conference circuit passage query time.
In meeting passage, the energy of line channel noise lower than actual speech signal, in order to distinguish line channel noise and real voice signal, preferably, before step S102, the method also comprises: in the second Preset Time, calculates the energy of signal in meeting passage; Judge whether the energy of signal in meeting passage is less than preset energy; And when the energy of signal is less than preset energy in meeting passage, determine that meeting passage keeps mourning in silence.
Adopting this preferred implementation, by judging that signal energy determines whether meeting passage has speech activity, also namely utilizing noise filtering to distinguish line channel noise and real voice signal.By arranging the noise gate (i.e. preset energy) of noise filtering, when the intensity of calling signal or outgoing signal is lower than setting thresholding, can be judged as circuit noise, noise gate is relevant to the phonetic algorithm of hardware DSP.By arranging the sensitivity of noise filtering, can improve the processing speed of noise filtering, arranging the performance requirement of hardware of sensitivity is higher, can determine according to actual conditions.
In meeting passage, signal energy may be there is and be greater than noise signal energy but the signal of non-speech audio, such as, use the dtmf signal produced during button on phone.The existence of these signals has influence on the accuracy calculating signal energy, thus impact judges that meeting passage keeps the accuracy of silence period size, and preferably, the energy calculating signal in meeting passage comprises: the frequecy characteristic extracting signal in meeting passage; Judge whether the frequecy characteristic of signal in meeting passage comprises default frequecy characteristic, wherein, the frequecy characteristic preset is determined according to the actual behaviour in service of meeting passage, the frequecy characteristic of such as dtmf signal; And when the frequecy characteristic of signal does not comprise default frequecy characteristic in meeting passage, calculate the energy of signal in meeting passage.
Adopt this preferred implementation, when calculating the energy of signal in meeting passage, when in meeting passage, the frequecy characteristic of signal does not comprise default frequecy characteristic, calculate the energy of signal in meeting passage, make to determine that the mode that meeting passage keeps mourning in silence is more accurate, when meeting passage goes wrong, can in all meeting passages, determine the scope of the in-problem meeting passage of possibility accurately, within the scope of this, find problem meeting passage, shorten the query time of problem conference circuit passage.
Common, preset the feature being characterized as dtmf signal.The buttons such as dtmf signal refers to the 0-9 on substation, * #, some application function in meeting needs to pass through user's trigger key could realize, and as the recording in meeting starts function, the * 940# receiving passage is exactly inchoate.When the people of conference participation carries out button operation on phone, the dtmf signal sound on circuit can enter meeting audio mixing, is heard by other passage, affects the judgement of meeting sound, needs the dtmf signal filtering button generation.
Can provide in the frequecy characteristic checking input signal and whether comprise dtmf signal, be because DTMF character has particular frequencies, dtmf signal can be prevented to be mistaken for voice signal by frequecy characteristic.When the DTMF detector on passage detects dtmf signal on meeting passage, disconnect succeeding in reaching an agreement of meeting passage immediately, also namely disconnect the calling signal of this passage; After dtmf signal disappears, automatically recover calling signal.Both receive dtmf signal like this, can not meeting be sent it to again.
Conveniently conference administrator judges the passage at the abnormal sound place in meeting, preferably, when meeting passage keeps the time of mourning in silence to be less than or equal to the first preset value, also namely there is voice signal in this meeting passage, user makes a speech, man-machine interface display channel icon (i.e. voice signal image, such as in corresponding conference users, show loudspeaker image), when meeting passage keeps the time of mourning in silence to be greater than the first preset value, when namely there is not voice signal in this meeting passage yet, not display word tone signal image in man-machine interface.Which passage such conference administrator just can have sound in real-time judge active conference, thus checks the speech situation in meeting fast, and judges the passage at the abnormal sound place in meeting and remove.
From above description, can find out, the embodiment of the present invention achieves following technique effect: the time of being mourned in silence by the maintenance of each passage of timing retrieval meeting, in real-time judge active conference, which passage really has sound, also the scope of existing problems meeting passage can namely be determined, within the scope of this, adopt existing method problem identificatioin meeting passage consuming time short, problem meeting passage can be investigated fast.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. detect a method for sound of meeting passages, it is characterized in that, comprising:
Detect the time that described meeting passage keeps mourning in silence;
Judge whether the described maintenance silence period is greater than the first Preset Time;
Be greater than described first Preset Time when the described maintenance silence period, determine that described meeting passage does not exist sound; And
Be less than or equal to described first Preset Time when the described maintenance silence period, determine that described meeting passage exists sound,
Wherein, before the described meeting passage of detection keeps the time of mourning in silence, described method also comprises:
Calculate the energy of signal in described meeting passage in the second Preset Time, wherein, described second Preset Time is less than described first Preset Time;
Judge whether the energy of signal in described meeting passage is less than preset energy; And
When the energy of signal is less than described preset energy in described meeting passage, determine that described meeting passage keeps mourning in silence,
Wherein, before calculating the energy of signal in described meeting passage in the second Preset Time, described method also comprises:
Extract the frequecy characteristic of signal in described meeting passage;
Judge whether the frequecy characteristic of signal in described meeting passage comprises default frequecy characteristic, wherein, described default frequecy characteristic is dtmf signal feature; And
When the frequecy characteristic of signal does not comprise described default frequecy characteristic in described meeting passage, calculate the energy of signal in described meeting passage.
2. the method for detection sound of meeting passages according to claim 1, is characterized in that, when the frequecy characteristic of signal comprises described default frequecy characteristic in described meeting passage, disconnects succeeding in reaching an agreement of described meeting passage.
3. the method for detection sound of meeting passages according to claim 1, is characterized in that, described default frequecy characteristic is the frequecy characteristic of the dtmf signal that user key-press produces.
4. the method for detection sound of meeting passages according to claim 1, it is characterized in that, after determining that described meeting passage exists sound, described method also comprises: display channel icon, wherein, described passage icon is for representing that the user of described meeting passage makes a speech.
5. detect a device for sound of meeting passages, it is characterized in that, comprising:
Detection module, for detecting the time that described meeting passage keeps mourning in silence;
First judge module, for judging whether the described maintenance silence period is greater than the first Preset Time;
First determination module, for being greater than described first Preset Time when the described maintenance silence period, determines that described meeting passage does not exist sound;
Second determination module, for being less than or equal to described first Preset Time when the described maintenance silence period, determines that described meeting passage exists sound;
Computing module, for calculating the energy of signal in described meeting passage in the second Preset Time, wherein, described second Preset Time is less than described first Preset Time;
Second judge module, for judging whether the energy of signal in described meeting passage is less than preset energy; And
3rd determination module, when the energy for signal in described meeting passage is less than described preset energy, determines that described meeting passage keeps mourning in silence,
Wherein, described computing module comprises:
Extract submodule, for extracting the frequecy characteristic of signal in described meeting passage;
Judge submodule, for judging whether the frequecy characteristic of signal in described meeting passage comprises default frequecy characteristic, wherein, described default frequecy characteristic is dtmf signal feature; And
Calculating sub module, for when the frequecy characteristic of signal does not comprise described default frequecy characteristic in described meeting passage, calculates the energy of signal in described meeting passage.
6. the device of detection sound of meeting passages according to claim 5, is characterized in that, described computing module also comprises:
Control submodule, for when the frequecy characteristic of signal comprises described default frequecy characteristic in described meeting passage, disconnect succeeding in reaching an agreement of described meeting passage.
7. the device of detection sound of meeting passages according to claim 5, is characterized in that, described default frequecy characteristic is the frequecy characteristic of the dtmf signal that user key-press produces.
8. the device of detection sound of meeting passages according to claim 5, is characterized in that, also comprise:
Display module, for display channel icon, wherein, described passage icon is for representing that the user of described meeting passage makes a speech.
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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 |
| CN111050265B (en) * | 2019-11-27 | 2021-09-14 | 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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| CN102523356A (en) | 2012-06-27 |
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