CN103825993A - Method and device for treating environment sound during conversation - Google Patents
Method and device for treating environment sound during conversation Download PDFInfo
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- CN103825993A CN103825993A CN201410086695.XA CN201410086695A CN103825993A CN 103825993 A CN103825993 A CN 103825993A CN 201410086695 A CN201410086695 A CN 201410086695A CN 103825993 A CN103825993 A CN 103825993A
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Abstract
The invention provides a method and a device for treating environment sound during conversation. The method comprises the steps of acquiring an environment sound signal under the condition that a user makes a call through headsets inserted to a mobile terminal; and reducing the sound volume of the other calling party and playing a key sound signal in a superposed manner through the headsets when the key sound signal meeting a set condition exists in the environment sound signal. The device comprises an acquiring module and a processing module. The method and the device can be used for effectively avoiding unexpected situations generated because key voice information in an ambient environment is missed when the user answers or makes a call in a way of wearing the headsets.
Description
Technical field
The present invention relates to communication technical field, the processing method of ambient sound and device while relating in particular to a kind of call.
Background technology
Mobile terminal is inserting earphone for user while playing phone, and the sound that people's ear is heard is the sound in earphone sound channel.Some crucial voice messagings to surrounding environment are not understood, and easily occur: 1) at traffic intersection generation traffic accident in the time that outdoor band earphone is listened to the music or made a phone call etc.; 2) personnel emergency around or while calling my name etc., does not hear.3) miss the critical alarm information etc. of broadcast playback.
How, in the time using earphone to play phone, effectively preventing the generation of above-mentioned situation, is this area problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is that the processing method of ambient sound and device when a kind of call is provided, effectively prevent that mobile phone users from missing the crucial voice messaging in surrounding environment while playing phone by earphone.
The technical solution used in the present invention is that the processing method of ambient sound when described call, comprising:
By being inserted into the earphone of mobile terminal converses, gather environmental sound signal in the case of user;
In the time there is the satisfied critical sound signals imposing a condition in environmental sound signal, reduce the wave volume of partner, and superpose and play described critical sound signals by earphone.
Further, in the situation that user converses by earphone, gather environmental sound signal, specifically comprise:
When described earphone is when singly listening earphone, use the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, use the Mike on mobile terminal to gather environmental sound signal or use the Mike of earphone to gather environmental sound signal;
The in the situation that of thering is main Mike and auxiliary Mike on mobile terminal, use main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
Further, in described environmental sound signal, exist the deterministic process that meets the critical sound signals imposing a condition to comprise:
From ambient sound, filter out noise extracts useful signal;
When described useful signal meets while imposing a condition, described useful signal is judged to be to critical sound signals.
Further, described satisfied imposing a condition refers to:
Described useful signal and default audio signal match and the loudness of described useful signal reaches the threshold value of setting.
Further, described default audio signal comprises: the audio-frequency information of non-voice class and the audio-frequency information of voice class.
Further, the audio-frequency information of described non-voice class at least comprises tone and the tone color of one of the following: tucket, railway crossing police whistle sound, bicycle the tinkle of bells, collision of motor-driven vehicles sound and the alarm song of motor vehicle;
The audio-frequency information of described voice class at least comprises tone and the tone color of one of the following: voice and animal sound.
Further, described useful signal and default audio signal match, and specifically comprise:
In default audio signal, find tone and all same or analogous audio-frequency informations of tone color with described useful signal.
Further, described method also comprises: before gathering environmental sound signal, obtain the residing position of described mobile terminal, and in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, triggering collection environmental sound signal.
The processing unit of ambient sound when the present invention also provides a kind of call, comprising:
Acquisition module, in the case of user by being inserted into the earphone of mobile terminal converses, gather environmental sound signal;
Processing module, while meeting the critical sound signals imposing a condition, reduces the wave volume of partner, and is superposeed and play described critical sound signals by earphone for existing when environmental sound signal.
Further, described acquisition module, specifically for:
When described earphone is when singly listening earphone, use the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, use the Mike on mobile terminal to gather environmental sound signal or use the Mike of earphone to gather environmental sound signal;
The in the situation that of thering is main Mike and auxiliary Mike on mobile terminal, use main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
Further, described processing module, specifically for:
From ambient sound, filter out noise extracts useful signal;
When described useful signal meets while imposing a condition, described useful signal is judged to be to critical sound signals.
Further, described satisfied imposing a condition refers to:
Described useful signal and default audio signal match and the loudness of described useful signal reaches the threshold value of setting.
Further, described default audio signal comprises: the audio-frequency information of non-voice class and the audio-frequency information of voice class.
Further, the audio-frequency information of described non-voice class at least comprises tone and the tone color of one of the following: tucket, railway crossing police whistle sound, bicycle the tinkle of bells, collision of motor-driven vehicles sound and the alarm song of motor vehicle;
The audio-frequency information of described voice class at least comprises tone and the tone color of one of the following: voice and animal sound.
Further, described when call ambient sound processing unit also comprise:
Position information acquisition module, for before gathering environmental sound signal, obtains the residing position of described mobile terminal, and in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, triggering collection module gathers environmental sound signal.
Adopt technique scheme, the present invention at least has following advantages:
Processing method and the device of ambient sound when call of the present invention, in the time playing phone with earphone, by detecting the acoustic information of surrounding environment, extract critical sound signals, reduce the wave volume of partner, critical sound signals is added in communication process, while effectively preventing from playing phone with earphone because the crucial voice messaging missing in surrounding environment causes the situation meeting accident.
Accompanying drawing explanation
The process flow figure of ambient sound when Fig. 1 is the call of first embodiment of the invention;
The process flow figure of ambient sound when Fig. 2 is the call of second embodiment of the invention;
The composition structural representation of the processing unit of ambient sound when Fig. 3 is the call of third embodiment of the invention;
The composition structural representation of the processing unit of ambient sound when Fig. 4 is the call of fourth embodiment of the invention;
Fig. 5 be application example one of the present invention on mobile terminal, design call time ambient sound processing unit composition structural representation;
The schematic flow sheet that when Fig. 6 is the call of application example one of the present invention, the processing unit of ambient sound is carried out;
Fig. 7 be application example two of the present invention on mobile terminal, design call time ambient sound processing unit composition structural representation;
The schematic flow sheet that when Fig. 8 is the call of application example two of the present invention, the processing unit of ambient sound is carried out.
Embodiment
Technological means and effect of taking for reaching predetermined object for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in detail as after.
First embodiment of the invention, the processing method of ambient sound when a kind of call, as shown in Figure 1, comprises following concrete steps:
Step S101, by being inserted into the earphone of mobile terminal converses, gathers environmental sound signal in the case of user.
Concrete, step S101 divides following three kinds of situations to realize:
When described earphone is when singly listening earphone, use the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, use the Mike on mobile terminal to gather environmental sound signal or use the Mike of earphone to gather environmental sound signal;
The in the situation that of thering is main Mike and auxiliary Mike on mobile terminal, use main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
Step S102, in the time there is the satisfied critical sound signals imposing a condition in environmental sound signal, reduces the wave volume of partner, and is superposeed and play this critical sound signals by earphone.
Concrete, in environmental sound signal, exist the deterministic process that meets the critical sound signals imposing a condition to comprise:
A1: filter out noise extracts useful signal from ambient sound;
A2: impose a condition when the useful signal proposing meets, this useful signal is judged to be to critical sound signals.
Further, meet and impose a condition and refer to: this useful signal and default audio signal match and the loudness of this useful signal reaches the threshold value of setting.
Default audio signal comprises: the audio-frequency information of non-voice class and the audio-frequency information of voice class.The audio-frequency information of non-voice class at least comprises tone and the tone color of one of the following: tucket, railway crossing police whistle sound, bicycle the tinkle of bells, collision of motor-driven vehicles sound and the alarm song of motor vehicle; The audio-frequency information of voice class at least comprises tone and the tone color of one of the following: voice and animal sound.
This useful signal and default audio signal match, and specifically comprise: in default audio signal, find tone and all same or analogous audio-frequency informations of tone color with described useful signal.
Second embodiment of the invention, a processing method for ambient sound while call, the step S201～S202 of the present embodiment is identical with first embodiment step S101～S102, and difference is, as shown in Figure 2, the described method of the present embodiment is further comprising the steps of before step S201:
Step S200, before gathering environmental sound signal, obtains the residing position of mobile terminal, in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, and execution step S201.
Concrete, can obtain the residing position of described mobile terminal by GPS locate mode or architecture mode.Because when mobile phone users is when outdoor, probably in road or public place, user can arrange the place that the crossing that certain public gathering place with loudspeaker, railway crossing, traffic accident take place frequently etc. is set as user, when applying technical scheme of the present invention can effectively prevent from being with earphone to play phone under these occasions, at traffic intersection generation traffic accident, or miss the crucial voice messaging in surrounding environment.
Third embodiment of the invention, the processing unit of ambient sound when a kind of call, is positioned on mobile terminal, and this device as shown in Figure 3, comprises following part:
1) acquisition module 100, in the case of user by being inserted into the earphone of mobile terminal converses, gather environmental sound signal;
Concrete, 100 points of following three kinds of situations of acquisition module realize:
When described earphone is when singly listening earphone, acquisition module 100 uses the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, acquisition module 100 uses the Mike on mobile terminal to gather environmental sound signal or uses the Mike of earphone to gather environmental sound signal;
The in the situation that of having main Mike and auxiliary Mike on mobile terminal, acquisition module 100 uses main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
2) processing module 200, while meeting the critical sound signals imposing a condition, reduces the wave volume of partner, and is superposeed and play this critical sound signals by earphone for existing when environmental sound signal.
Concrete, processing module 200 filter out noise from ambient sound extracts useful signal; Impose a condition when described useful signal meets, this useful signal is judged to be to critical sound signals.
Here, meet and impose a condition and refer to: this useful signal and default audio signal match and the loudness of this useful signal reaches the threshold value of setting.
This default audio signal comprises: the audio-frequency information of non-voice class and the audio-frequency information of voice class.The audio-frequency information of non-voice class at least comprises tone and the tone color of one of the following: tucket, railway crossing police whistle sound, bicycle the tinkle of bells, collision of motor-driven vehicles sound and the alarm song of motor vehicle; The audio-frequency information of voice class at least comprises tone and the tone color of one of the following: voice and animal sound.
Fourth embodiment of the invention, the processing unit of ambient sound when a kind of call, the composition of this mobile terminal of the present embodiment and the 3rd embodiment are roughly the same, include acquisition module 100 and processing module 200, difference is, as shown in Figure 4, the processing unit of ambient sound also comprises when this call of the present embodiment:
Position information acquisition module 300, for before gathering environmental sound signal, obtains the residing position of described mobile terminal, in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, calls acquisition module 100.
Introduce two application examples of the present invention based on above-described embodiment below.
Application example one:
The processing unit of ambient sound when the use earphone that this application example designs on mobile terminal is conversed, as shown in Figure 5, this device is mainly made up of MIC recording unit, CPU controlled processing unit, audio treatment unit, speech data library unit and five unit of earphone broadcast unit of mobile terminal, wherein, MIC recording unit class is similar to the function that the acquisition module in the 3rd embodiment completes, and CPU controlled processing unit, audio treatment unit, speech data library unit and earphone broadcast unit are similar to the function that the processing module in the 3rd embodiment completes.Audio treatment unit extracts useful signal after gathering user surrounding environment sound, is transferred to CPU controlled processing unit and carries out speech recognition, and audio signal default in the useful signal extracting and speech data library unit is carried out to comparative evaluation.When the critical data of useful signal of contrast is when to be tone all consistent with the tone of a certain default audio signal and tone color with tone color, CPU controlled processing unit sends a command to audio treatment unit and carries out the control of audio frequency, useful signal is added in the sound of conversing, playing to user by earphone broadcast unit listens, effectively prevent that band earphone from playing phone at traffic intersection generation traffic accident, and do not affected the carrying out of normal talking.
In this device, the functional description of each unit is as follows:
The MIC unit of recording: in the time that user uses the earphone that is inserted into mobile terminal to converse, Real-time Collection ambient sound, and be transferred to audio treatment unit;
CPU controlled processing unit: the useful signal in the ambient sound that monitoring audio treatment unit transmits, default audio signal in useful signal and speech data library unit is contrasted identification by CPU control unit, judge that whether the next useful signal of collection is consistent with audio signal default in speech data library unit, thereby determine whether useful signal is outputed to earphone broadcast unit;
Speech data library unit: the audio signal of storage user preset, for carrying out comparative evaluation with the useful signal of ambient sound, has determined whether crucial voice signal.Data in speech database can be upgraded processing by CPU controlled processing unit;
Audio treatment unit: extract useful signal the ambient sound transmitting from MIC recording unit, send to CPU controlled processing unit; Under the control of CPU controlled processing unit, carry out audio frequency control, the Key Words tone signal of determining based on useful signal is sent to earphone broadcast unit, reduce the sound of call simultaneously.
Earphone broadcast unit: the Key Words tone signal that audio treatment unit is transmitted is superimposed upon in the sound of call and plays back, mutual between completing user and mobile terminal.
The flow process that in this application example, the processing unit of ambient sound is carried out when this call as shown in Figure 6.
Application example two:
The processing unit of ambient sound when call that this application example designs on mobile terminal, as shown in Figure 7, this device is mainly by the MIC recording unit of mobile terminal, CPU controlled processing unit, speech data library unit, audio treatment unit, six unit compositions of GPS positioning unit and earphone broadcast unit, wherein, MIC recording unit class is similar to the function that the acquisition module in the 4th embodiment completes, CPU controlled processing unit, audio treatment unit, speech data library unit and earphone broadcast unit are similar to the function that the processing module in the 4th embodiment completes, GPS positioning unit is similar to the position information acquisition module in the 4th embodiment.
GPS positioning unit is collected the position data of mobile terminal, and give CPU controlled processing unit and process, thus the position of definite mobile terminal.Then the now residing position of mobile terminal of basis, CPU controlled processing unit determines whether to open MIC recording unit, thereby the information that audio treatment unit transmits according to CPU controlled processing unit determines that the sound source that earphone broadcast unit is play is the sound that keeps former call, or the sound of call is play and reduced to the useful signal superposeing in playing environment sound in the sound of call.
In this device, the functional description of each unit is as follows:
CPU controlled processing unit: in the time that user uses the earphone that is inserted into mobile terminal to converse, the position signalling transmitting up by GPS positioning unit, CPU controlled processing unit, by this positional information being judged after processing, carries out the sound collection of ambient sound to determining whether need to open MIC recording unit; CPU control unit will have the audio signal with default in signal and speech data library unit that audio treatment unit extracts to contrast identification, judge that whether useful signal is consistent with audio signal default in speech data library unit, and whether the loudness of useful signal exceedes the threshold value of setting, thereby determine whether useful signal is outputed to earphone broadcast unit by audio treatment unit;
Speech data library unit: the audio signal of storage user preset, for carrying out comparative evaluation with the useful signal of ambient sound.Data in speech database can be upgraded processing by CPU controlled processing unit;
GPS positioning unit: the particular location of localisation of mobile terminals, when GPS positioning unit is checked through after location information of mobile terminal, communication is processed to CPU controlled processing unit;
Audio treatment unit: extract useful signal the ambient sound transmitting from MIC recording unit, send to CPU controlled processing unit; Under the control of CPU controlled processing unit, carry out audio frequency control, the Key Words tone signal of determining is sent to earphone broadcast unit, reduce the sound of call simultaneously.
The MIC unit of recording: for the main MIC(on mobile terminal is if any auxiliary MIC, can open together recording), for being transferred to audio treatment unit after ambient sound collection;
Earphone broadcast unit: the Key Words tone signal that audio treatment unit is transmitted is superimposed upon in the sound of call and plays back, mutual between completing user and mobile terminal.
The flow process that in this application example, the processing unit of ambient sound is carried out when this call as shown in Figure 8.
This application example is by detecting user's positional information, in the time that outdoor use earphone plays phone, open MIC recording, automatic volume of music or the call sound size of reducing when automobile or voice exceed certain threshold value detected, and ambient sound is around added in music or call, for reminding user, effectively prevent from being with earphone to listen to the music at traffic intersection generation traffic accident, and do not affect normal voice call.
By the explanation of embodiment, should be able to more deeply and concrete understanding for technological means and effect of reaching predetermined object and taking the present invention, but appended diagram be only to provide with reference to the use of explanation, be not used for the present invention to be limited.
Claims (10)
1. while call, a processing method for ambient sound, is characterized in that, comprising:
By being inserted into the earphone of mobile terminal converses, gather environmental sound signal in the case of user;
In the time there is the satisfied critical sound signals imposing a condition in environmental sound signal, reduce the wave volume of partner, and superpose and play described critical sound signals by earphone.
When call according to claim 1 ambient sound processing method, it is characterized in that, in the situation that user converses by earphone, gather environmental sound signal, specifically comprise:
When described earphone is when singly listening earphone, use the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, use the Mike on mobile terminal to gather environmental sound signal or use the Mike of earphone to gather environmental sound signal;
The in the situation that of thering is main Mike and auxiliary Mike on mobile terminal, use main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
When call according to claim 1 ambient sound processing method, it is characterized in that, in described environmental sound signal, exist the deterministic process that meets the critical sound signals imposing a condition to comprise:
From ambient sound, filter out noise extracts useful signal;
When described useful signal meets while imposing a condition, described useful signal is judged to be to critical sound signals.
When call according to claim 3 ambient sound processing method, it is characterized in that, described meet to impose a condition refer to:
In default audio signal, find with the tone of described useful signal and tone color all the loudness of same or analogous audio-frequency information and described useful signal reach the threshold value of setting.
5. the processing method of ambient sound during according to call described in any one in claim 1～4, it is characterized in that, described method also comprises: before gathering environmental sound signal, obtain the residing position of described mobile terminal, in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, triggering collection environmental sound signal.
6. while call, a processing unit for ambient sound, is characterized in that, comprising:
Acquisition module, in the case of user by being inserted into the earphone of mobile terminal converses, gather environmental sound signal;
Processing module, while meeting the critical sound signals imposing a condition, reduces the wave volume of partner, and is superposeed and play described critical sound signals by earphone for existing when environmental sound signal.
When call according to claim 6 ambient sound processing unit, it is characterized in that, described acquisition module, specifically for:
When described earphone is when singly listening earphone, use the Mike on mobile terminal to gather environmental sound signal;
In the time that described earphone is the earphone with Mike, use the Mike on mobile terminal to gather environmental sound signal or use the Mike of earphone to gather environmental sound signal;
The in the situation that of thering is main Mike and auxiliary Mike on mobile terminal, use main Mike and/or auxiliary Mike to gather environmental sound signal simultaneously.
When call according to claim 6 ambient sound processing unit, it is characterized in that, described processing module, specifically for:
From ambient sound, filter out noise extracts useful signal;
When described useful signal meets while imposing a condition, described useful signal is judged to be to critical sound signals.
When call according to claim 8 ambient sound processing unit, it is characterized in that, described meet to impose a condition refer to:
In default audio signal, find with the tone of described useful signal and tone color all the loudness of same or analogous audio-frequency information and described useful signal reach the threshold value of setting.
10. during according to call described in any one in claim 6～9, the processing unit of ambient sound, is characterized in that, described mobile terminal also comprises:
Position information acquisition module, for before gathering environmental sound signal, obtains the residing position of described mobile terminal, and in the time that the residing position of mobile terminal is outdoor or belongs to the place of user's setting, triggering collection module gathers environmental sound signal.
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