CN104202321A - Method and device for voice recording - Google Patents
Method and device for voice recording Download PDFInfo
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- CN104202321A CN104202321A CN201410443068.7A CN201410443068A CN104202321A CN 104202321 A CN104202321 A CN 104202321A CN 201410443068 A CN201410443068 A CN 201410443068A CN 104202321 A CN104202321 A CN 104202321A
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Abstract
The invention discloses a method and a device for voice recording in order to reduce blank and voiceless fragments in an audio file and improve effectiveness of the audio file and network transmission efficiency. The method includes: performing real-time data collection to obtain a current voice fragment file; judging whether or not voice exists in the current voice fragment file; judging whether or not an opened audio file exists if the voice exists, writing in the current voice fragment file in the opened audio file if the opened audio file exists, establishing a new audio file if the opened audio file doesn't exist, and regarding the new audio file as the opened audio file and writing in the current voice fragment file; judging whether or not the opened audio file exists if the voice doesn't exist, and if the opened audio file exists, closing the opened audio file and storing the opened audio file as an audio file to be transmitted, and discarding the current audio fragment file; directly discarding the current audio fragment file if the opened audio file doesn't exist.
Description
Technical field
The present invention relates to audio signal processing technique field, particularly a kind of method of sound recording and device.
Background technology
An important step of voice collecting is that the voice signal that user is sent is recorded, and then adopts relevant speech data algorithm to carry out speech analysis to the audio signal of recording generation by speech collecting system.In the prior art, user starts after voice collecting function, and system can start recording by microphone, but in actual use procedure, microphone is whether to have sound in the middle of can not considering in the time of recording, be all generally from the beginning to record tail, generate a voice document.In addition, in recording process, also can not consider the impact of background noise.
The sound of recording like this, a lot of blank in the inside do not have the fragment of sound, can cause effective content few, and file are larger, are unfavorable for transmitting by network.
Summary of the invention
The invention provides a kind of method and device of sound recording, there is no the fragment of sound in order to reduce audio file empty, improve the validity of audio file, and then improve network transmission efficiency.
A kind of method that the invention provides sound recording, comprising:
Carry out real time data acquisition, obtain current sound clip file;
Analyze described current sound clip file, judge in described current sound clip file whether have sound;
If described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
If there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
Preferably, in above-mentioned method, in the step of the new audio file of described foundation: with 32 id and the described new audio file of current time stamp name.
Preferably, in above-mentioned method, also comprise:
Described audio file to be transmitted is sent to far-end, and determine by described timestamp the sequencing that file is play.
Preferably, in above-mentioned method, analyze described current sound clip file, judge in described current sound clip file and whether exist the step of sound specifically to comprise:
Described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit;
Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
Preferably, in above-mentioned method, whether the described current sound clip file of described analysis, judge in described current sound clip file and exist the step of sound specifically to comprise:
Described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit;
Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
The present invention also provides a kind of device of sound recording, comprising:
Collecting unit, for: carry out real time data acquisition, obtain current sound clip file;
Analytic unit, for: analyze described current sound clip file, judge in described current sound clip file whether have sound;
Memory cell, be used for: if described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
Discarding unit, be used for: if there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
Preferably, in above-mentioned device, described memory cell, also for: with the described new audio file of 32 id and current time stamp name.
Preferably, in above-mentioned device, also comprise:
Transmission unit, for: described audio file to be transmitted sent;
Far-end, receives described audio file to be transmitted, and determines by described timestamp the sequencing that file is play.
Preferably, in above-mentioned device, described analytic unit, specifically for:
Described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit;
Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
Preferably, in above-mentioned device, described analytic unit, specifically for:
Described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit;
Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
The present invention has following technique effect:
1) in the embodiment of the present invention, by judging whether there is sound in sound clip file, thereby in audio file, only remain with the sound clip file of sound, discard and there is no the sound clip of sound file, there is no the fragment of sound so greatly reduced audio file empty, improve the validity of audio file, and then improved network transmission efficiency.
2) in the embodiment of the present invention, by sound clip file is carried out to dividing elements, and by asking for the mode of mean value of each unit absolute value, determine whether sound clip file has sound, this method is more accurate, has taken into full account the impact of background noise, can not cause erroneous judgement.
3) in the embodiment of the present invention, be divided into a unit by every four bytes, and only ask for the mode of the first two byte of each unit, greatly improved treatment effeciency, and kept the accuracy rate of speech recognition.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in write specification, claims and accompanying drawing.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, for explaining the present invention, is not construed as limiting the invention together with embodiments of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of embodiment of the present invention sound recording method;
Fig. 2 is the schematic diagram of embodiment of the present invention sound recording device;
Fig. 3 is the flow chart of the sound recording method of another embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein, only for description and interpretation the present invention, is not intended to limit the present invention.
Fig. 1 is the flow chart of embodiment of the present invention sound recording method, and as shown in Figure 1, the method for a kind of sound recording of inventive embodiments, comprising:
Carry out real time data acquisition, obtain current sound clip file;
Analyze described current sound clip file, judge in described current sound clip file whether have sound;
If described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
If there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
Visible, in the embodiment of the present invention, by judging whether there is sound in sound clip file, thereby in audio file, only remain with the sound clip file of sound, discard and there is no the sound clip of sound file, there is no the fragment of sound so greatly reduced audio file empty, improved the validity of audio file, and then improved network transmission efficiency.
In one embodiment of the invention, in the step of the new audio file of described foundation: with 32 id and the described new audio file of current time stamp name.Also comprise: described audio file to be transmitted is sent to far-end, and determine by described timestamp the sequencing that file is play.By the mode of this timestamp, be easy to determine the playing sequence of file.
In one embodiment of the invention, analyze described current sound clip file, judge in described current sound clip file and whether exist the step of sound specifically to comprise:
Described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit;
Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
Visible, in the embodiment of the present invention, by sound clip file is carried out to dividing elements, and by asking for the mode of mean value of each unit absolute value, determine whether sound clip file has sound, and this method is more accurate, take into full account the impact of background noise, can not cause erroneous judgement.
In another embodiment of the present invention, the described current sound clip file of described analysis, whether exist the step of sound specifically comprise: described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit if judging in described current sound clip file; Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer; Ask for the mean value of all described absolute values; Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
Visible, be divided into a unit by every four bytes, and only ask for the mode of the first two byte of each unit, greatly improve treatment effeciency, and kept the accuracy rate of speech recognition, can not miss voice.
Fig. 2 is the schematic diagram of embodiment of the present invention sound recording device, and as shown in Figure 2, a kind of device of sound recording, comprising:
Collecting unit 201, for: carry out real time data acquisition, obtain current sound clip file;
Analytic unit 202, for: analyze described current sound clip file, judge in described current sound clip file whether have sound;
Memory cell 203, be used for: if described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
Discarding unit 204, be used for: if there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
In one embodiment of the invention, described memory cell, also for: with the described new audio file of 32 id and current time stamp name.Also comprise: transmission unit, for: send described audio file to be transmitted; Far-end, receives described audio file to be transmitted, and determines by described timestamp the sequencing that file is play.
In one embodiment of the invention, described analytic unit, specifically for: described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit; Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer; Ask for the mean value of all described absolute values; Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
In another embodiment of the present invention, described analytic unit, specifically for: described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit; Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer; Ask for the mean value of all described absolute values; Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
Fig. 3 is the flow chart of the sound recording method of another embodiment of the present invention, this embodiment is voice fragmentation method for recording and transmission method, when it is recorded by directshow (be Microsoft provide be enclosed within the kit that carries out Streaming Media processing on windows platform), can recording limit, limit be analyzed by sound, the part that has sound is recorded, do not have the part of sound not record, can form so a series of and comprise substantial sound fragment file, each file can be according to No. ID, time sequencing tab file and time tag, passing through after Internet Transmission, carry out sound fragment restructuring according to file ID number with time tag at receiving terminal.The embodiment of the present invention can be used for teleconference, teaching etc. various scenes, has very strong application prospect.
As shown in Figure 3, the embodiment of the present invention is after user's specified voice input equipment or default sound input equipment, utilize directshow to carry out sound collection, in the process of Real-time Collection, can continually from audio input device, obtain the voice data of WAV form (the WINDOWS file format of the standard of using while being recording), get after one section of voice data at every turn, this section of voice data is converted to 16 integers that have symbol according to unit of every two bytes, calculate average to obtaining after the absolute value of integer is sued for peace, the threshold value of specifying in advance according to this method judges, if be more than or equal to this threshold value, represent that this section of voice data exists sound, if be less than this threshold value, represent that this section of voice data do not exist sound, the embodiment of the present invention is for raising the efficiency, to get the first two byte according to every four bytes to change, on whole structure without impact,
While there is sound in judgement, if there is no sound before, generate the new audio file with unique 32 id and the name of current time stamp, preserve this id and timestamp, in new audio file, write this voice data, if just there is sound, write this voice data to EOF in the audio file of opening before; When judgement does not exist sound, if there is no before sound, abandon this voice data and do not do other processing, if there is sound before, abandon this voice data, after the audio files when front opening is preserved, close stream, and preserve the duration of this file taking millisecond as unit;
After audio file stream, can open a new thread this file is uploaded to far-end when closing, after uploading, the details of this file (comprising timestamp, id, the duration of filename, time started) are sent to far-end, far-end can find the file at far-end according to file name, determine the sequencing of file according to the timestamp of time started, and can determine according to the timestamp of time started the reproduction time of file.While no longer needing to gather, stop gathering, no longer obtain voice data.
As from the foregoing, the embodiment of the present invention has following advantage:
1) in the embodiment of the present invention, by judging whether there is sound in sound clip file, thereby in audio file, only remain with the sound clip file of sound, discard and there is no the sound clip of sound file, there is no the fragment of sound so greatly reduced audio file empty, improve the validity of audio file, and then improved network transmission efficiency.
2) in the embodiment of the present invention, by sound clip file is carried out to dividing elements, and by asking for the mode of mean value of each unit absolute value, determine whether sound clip file has sound, this method is more accurate, has taken into full account the impact of background noise, can not cause erroneous judgement.
3) in the embodiment of the present invention, be divided into a unit by every four bytes, and only ask for the mode of the first two byte of each unit, greatly improved treatment effeciency, and kept the accuracy rate of speech recognition.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) that wherein include computer usable program code.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a method for sound recording, is characterized in that, comprising:
Carry out real time data acquisition, obtain current sound clip file;
Analyze described current sound clip file, judge in described current sound clip file whether have sound;
If described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
If there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
2. the method for claim 1, is characterized in that, in the step of the new audio file of described foundation: with 32 id and the described new audio file of current time stamp name.
3. method as claimed in claim 2, is characterized in that, also comprises:
Described audio file to be transmitted is sent to far-end, and determine by described timestamp the sequencing that file is play.
4. whether the method as described in claim 1,2 or 3, is characterized in that, analyzes described current sound clip file, judge in described current sound clip file and exist the step of sound specifically to comprise:
Described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit;
Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
5. the method as described in claim 1,2 or 3, is characterized in that, whether the described current sound clip file of described analysis, judge in described current sound clip file and exist the step of sound specifically to comprise:
Described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit;
Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
6. a device for sound recording, is characterized in that, comprising:
Collecting unit, for: carry out real time data acquisition, obtain current sound clip file;
Analytic unit, for: analyze described current sound clip file, judge in described current sound clip file whether have sound;
Memory cell, be used for: if described current sound clip document memory is at sound, judge whether to exist the audio file of opening, in the described audio file of opening, to write described current sound clip file, otherwise set up new audio file, and the audio file of opening described in writing using described new audio file as the audio file of opening and by described current sound clip file;
Discarding unit, be used for: if there is not sound in described current sound clip file, the audio file opened described in judging whether to exist is the audio file of opening described in closing and preserve as audio file to be transmitted, and abandons described current sound clip file; Otherwise directly abandon described current sound clip file.
7. device as claimed in claim 6, is characterized in that, described memory cell, also for: with the described new audio file of 32 id and current time stamp name.
8. device as claimed in claim 7, is characterized in that, also comprises:
Transmission unit, for: described audio file to be transmitted sent;
Far-end, receives described audio file to be transmitted, and determines by described timestamp the sequencing that file is play.
9. the device as described in claim 6,7 or 8, is characterized in that, described analytic unit, specifically for:
Described current sound clip file is carried out to dividing elements, and every two bytes are divided into a unit;
Be 16 integers that have symbol by described two byte conversion in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
10. the device as described in claim 6,7 or 8, is characterized in that, described analytic unit, specifically for:
Described current sound clip file is carried out to dividing elements, and every four bytes are divided into a unit;
Be 16 integers that have symbol by the first two byte conversion in described four bytes in each unit, and get the absolute value of described integer;
Ask for the mean value of all described absolute values;
Judging whether described mean value is greater than predetermined threshold, is that described current sound clip document memory, at sound, otherwise does not exist sound in described current sound clip file.
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| CN201410443068.7A CN104202321B (en) | 2014-09-02 | 2014-09-02 | A kind of method and device of sound recording |
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| CN201410443068.7A CN104202321B (en) | 2014-09-02 | 2014-09-02 | A kind of method and device of sound recording |
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| CN104202321A true CN104202321A (en) | 2014-12-10 |
| CN104202321B CN104202321B (en) | 2017-10-03 |
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| CN109285563A (en) * | 2018-10-15 | 2019-01-29 | 华为技术有限公司 | Voice data processing method and device during translation on line |
| CN111933176A (en) * | 2020-09-22 | 2020-11-13 | 成都启英泰伦科技有限公司 | Method and device for positioning voice contents in batches |
| CN112601153A (en) * | 2021-03-01 | 2021-04-02 | 成都大熊猫繁育研究基地 | Automatic sound acquisition and transmission device and use method thereof |
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| CN109285563A (en) * | 2018-10-15 | 2019-01-29 | 华为技术有限公司 | Voice data processing method and device during translation on line |
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| CN112601153A (en) * | 2021-03-01 | 2021-04-02 | 成都大熊猫繁育研究基地 | Automatic sound acquisition and transmission device and use method thereof |
Also Published As
| Publication number | Publication date |
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| CN104202321B (en) | 2017-10-03 |
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