CN112788263A - Method and equipment for controlling multifunctional recorder to record voice - Google Patents
Method and equipment for controlling multifunctional recorder to record voice Download PDFInfo
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- CN112788263A CN112788263A CN201911064337.8A CN201911064337A CN112788263A CN 112788263 A CN112788263 A CN 112788263A CN 201911064337 A CN201911064337 A CN 201911064337A CN 112788263 A CN112788263 A CN 112788263A
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- voice
- switch
- recorder
- multifunctional
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
Abstract
The application discloses a method for controlling a multifunctional recorder to record voice, which comprises the following steps: detecting the state of a preset switch when the multifunctional recorder records sound or video; the switch is used for controlling the multimedia recorder to record or not to record the voice from the opposite end of the interphone; and if the switch is in a closed state, carrying out voice elimination processing on the voice from the opposite end of the interphone. Corresponding to the method, the application also provides a multifunctional recorder. By the technical scheme, the voice effect of the sound recording and video recording of the multifunctional recorder can be improved.
Description
Technical Field
The application relates to the technical field of voice processing, in particular to a method and equipment for controlling a multifunctional recorder to record voice.
Background
The existing multifunctional recorder often has the function of an interphone, and the multifunctional recorder can be used as the interphone to call or monitor while recording sound or video.
However, if the multifunctional recorder performs the talk-back service while recording or recording, the voice of the other party emitted from the speaker in the talk-back service is recorded in the recording or recording recorded by the recorder. This is because: the multi-functional record appearance is designed to record the pronunciation of several meters when the record video recording, and at this moment, the multi-functional record appearance is by when talkbacking as intercom (the speaker is very near apart from the microphone), and the pronunciation of the other side can be followed the speaker and sent, then gathers through the microphone to by the recording or record video to the record appearance in, thereby cause very big interference and influence to the recording or the video effect of record appearance.
In addition, in practical applications, in most cases, users of the multifunctional recorder may not want the recorder to record the voice of the opposite end while talking.
Disclosure of Invention
The application provides a method and equipment for controlling a multifunctional recorder to record voice so as to improve the voice effect of the recording and videotaping of the multifunctional recorder.
The application discloses a method for controlling a multifunctional recorder to record voice, which comprises the following steps:
detecting the state of a preset switch when the multifunctional recorder records sound or video; the switch is used for controlling the multimedia recorder to record or not to record the voice from the opposite end of the interphone;
and if the switch is in a closed state, carrying out voice elimination processing on the voice from the opposite end of the interphone.
Preferably, the switch is a software-implemented switch or a hardware switch.
Preferably, the voice elimination processing on the voice from the opposite end of the interphone includes:
and a data processor DSP is adopted to perform voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder.
Preferably, the processing of speech elimination for the speech signal sent by the speaker of the multifunctional recorder by using the DSP specifically includes:
inputting two paths of voice signals to the DSP; the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by the loudspeaker; the second path of voice signal is the voice signal input to the loudspeaker;
and the DSP eliminates the second path of voice signals from the first path of voice signals and outputs a voice elimination processing result.
The application also discloses multi-functional record appearance includes: switch, detection module, pronunciation elimination module, wherein:
the switch is used for controlling the multimedia recorder to record or not record the voice from the opposite end of the interphone;
the detection module is used for detecting the state of the switch when the multifunctional recorder records sound or videos and informing the voice elimination module when the switch is in a closed state;
and the voice elimination module is used for eliminating the voice from the opposite end of the interphone.
Preferably, the switch is a software-implemented switch or a hardware switch.
Preferably, the voice elimination module is specifically configured to:
and carrying out voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder by adopting the DSP.
Preferably, the voice elimination module specifically performs the following operations:
inputting two paths of voice signals to the DSP; the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by the loudspeaker; the second path of voice signal is the voice signal input to the loudspeaker;
and the DSP is used for eliminating the second path of voice signals from the first path of voice signals and outputting voice elimination processing results.
According to the technical scheme, the method and the device for controlling the multifunctional recorder to record the voice are characterized in that a software switch or a hardware switch for controlling whether the multimedia recorder records the voice from the opposite end of the interphone is arranged, and when the switch is detected to be in a closed state, the voice elimination processing is carried out on the voice from the opposite end of the interphone in the current recording or video recording of the multifunctional recorder, so that the purpose of eliminating the voice of the opposite end of the interphone contained in the recording or video recording file recorded by the multifunctional recorder is achieved, and the voice recording effect of the multifunctional recorder is improved.
In addition, the above-mentioned technical scheme that this application provided makes the user of multi-functional record appearance can control whether receive and record the pronunciation of intercom opposite terminal, has improved multi-functional record appearance's use convenience.
Drawings
FIG. 1 is a schematic flow chart of a method for controlling a multifunctional recorder to record voice according to the present application;
fig. 2 is a schematic view of the structure of the multifunctional recorder.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by referring to the accompanying drawings and examples.
In order to solve the problems in the prior art, the method controls whether the multimedia recorder receives and records the voice from the opposite end of the interphone by setting a switch option on software or setting a switch on hardware. When recording or video recording, if the switch is detected to be in a closed state, the voice from the opposite end of the interphone is not expected to be recorded by the multimedia recorder, so that the voice from the opposite end of the interphone is eliminated.
Fig. 1 is a schematic flowchart of a method for controlling a multifunctional recorder to record voice according to the present application, and referring to fig. 1, the method includes:
step 101: detecting the state of a preset switch when the multifunctional recorder records sound or video; the switch is used for controlling the multimedia recorder to record or not to record the voice from the opposite end of the interphone.
As mentioned above, the switch may be a software-implemented switch or a hardware switch.
Step 102: if the switch is off, then step 103 is continued.
When the switch is in the off state, it indicates that the user currently using the multifunctional recorder does not want the voice from the opposite end of the interphone to be recorded by the multimedia recorder, and therefore, the voice from the opposite end of the interphone needs to be eliminated.
Step 103: and carrying out voice elimination processing on the voice from the opposite end of the interphone.
Specific speech cancellation processing methods may include the following two types:
the first method is as follows: the loudspeaker is closed, so that the voice emitted by the loudspeaker cannot be recorded during recording or video recording. The advantages of this approach are: the realization is simpler; the disadvantages are that: in this case, the user cannot hear the voice of the user at the opposite end of the interphone.
The second method comprises the following steps: and a data processor (DSP) is adopted to carry out voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder. Specifically, the present application proposes the following speech cancellation processing method:
firstly, two paths of voice signals are input to the DSP:
the first path is a normal voice signal, and the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by a loudspeaker. If the multifunctional recorder is currently used as both a recorder and an interphone, the voice signal sent by the loudspeaker is the voice signal of the opposite end of the interphone.
The second path is a reference signal, and the source of the signal is a voice signal input to a loudspeaker. If the current multifunctional recorder is simultaneously used as a recorder and an interphone, the voice signal input to the loudspeaker is the voice signal of the opposite end of the interphone, and the voice signal is input to the loudspeaker and then played by the loudspeaker, namely the voice signal sent by the loudspeaker.
Then, the DSP processes the two paths of signals through a proper algorithm, and eliminates the voice signal emitted by the speaker recorded in the first path of signal according to the second path of reference signal, that is: and the DSP eliminates the second path of voice signals from the first path of voice signals and outputs a voice elimination processing result, thereby achieving the purpose of eliminating the voice. For example: the second path of signal can be eliminated from the first path of signal by using an exclusive-or operation method of the two paths of signals.
The advantages of this approach are: the user can hear the speech of the opposite end of the interphone, and meanwhile, the speech of the opposite end of the interphone is not recorded in the recording or video recording file recorded by the multifunctional recorder; the disadvantages are that: the realization is more complex, and the speech elimination processing in the DSP has higher requirements on the algorithm, and the problems of incomplete speech elimination and occasional speech omission exist.
By adopting the method provided by the application, the voice of the opposite end of the interphone contained in the recording or video file recorded by the multifunctional recorder can be eliminated to a greater extent, so that the voice effect of the recording and video of the multifunctional recorder is improved, a user of the multifunctional recorder can control whether the voice of the opposite end of the interphone is recorded or not, and the use convenience of the multifunctional recorder is improved.
Corresponding to the above method, the present application also discloses a multifunctional recorder, whose composition structure is shown in fig. 2, including: switch, detection module, pronunciation elimination module, wherein:
the switch is used for controlling the multimedia recorder to record or not record the voice from the opposite end of the interphone;
the detection module is used for detecting the state of the switch when the multifunctional recorder records sound or videos and informing the voice elimination module when the switch is in a closed state;
and the voice elimination module is used for eliminating the voice from the opposite end of the interphone.
Preferably, the switch may be a software-implemented switch, or may be a hardware switch.
The voice elimination module in the multifunctional recorder shown in fig. 2 is specifically configured to: and carrying out voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder by adopting the DSP.
Preferably, the voice elimination module specifically performs the following operations:
inputting two paths of voice signals to the DSP; the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by the loudspeaker; the second path of voice signal is the voice signal input to the loudspeaker;
and the DSP is used for eliminating the second path of voice signals from the first path of voice signals and outputting voice elimination processing results.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (8)
1. A method for controlling a multifunctional recorder to record voice is characterized by comprising the following steps:
detecting the state of a preset switch when the multifunctional recorder records sound or video; the switch is used for controlling the multimedia recorder to record or not to record the voice from the opposite end of the interphone;
and if the switch is in a closed state, carrying out voice elimination processing on the voice from the opposite end of the interphone.
2. The method of claim 1, wherein:
the switch is a software implemented switch or a hardware switch.
3. The method according to claim 1 or 2, wherein the performing speech cancellation processing on the speech from the opposite end of the interphone comprises:
and a data processor DSP is adopted to perform voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder.
4. The method according to claim 3, wherein the performing the voice elimination processing on the voice signal emitted from the speaker of the multifunctional recorder by using the DSP specifically comprises:
inputting two paths of voice signals to the DSP; the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by the loudspeaker; the second path of voice signal is the voice signal input to the loudspeaker;
and the DSP eliminates the second path of voice signals from the first path of voice signals and outputs a voice elimination processing result.
5. A multi-function recorder, comprising: switch, detection module, pronunciation elimination module, wherein:
the switch is used for controlling the multimedia recorder to record or not record the voice from the opposite end of the interphone;
the detection module is used for detecting the state of the switch when the multifunctional recorder records sound or videos and informing the voice elimination module when the switch is in a closed state;
and the voice elimination module is used for eliminating the voice from the opposite end of the interphone.
6. The multifunctional recorder of claim 5, wherein:
the switch is a software implemented switch or a hardware switch.
7. The multifunctional recorder according to claim 5 or 6, wherein the voice elimination module is specifically configured to:
and carrying out voice elimination processing on voice signals sent by a loudspeaker of the multifunctional recorder by adopting the DSP.
8. The multifunctional recorder of claim 7, wherein the voice elimination module performs the following operations:
inputting two paths of voice signals to the DSP; the first path of voice signal comprises a voice signal in the recording or video recording of the multifunctional recorder and a voice signal sent by the loudspeaker; the second path of voice signal is the voice signal input to the loudspeaker;
and the DSP is used for eliminating the second path of voice signals from the first path of voice signals and outputting voice elimination processing results.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911064337.8A CN112788263B (en) | 2019-11-04 | 2019-11-04 | Method and equipment for controlling multifunctional recorder to record voice |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911064337.8A CN112788263B (en) | 2019-11-04 | 2019-11-04 | Method and equipment for controlling multifunctional recorder to record voice |
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| CN112788263A true CN112788263A (en) | 2021-05-11 |
| CN112788263B CN112788263B (en) | 2023-06-23 |
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| CN201911064337.8A Active CN112788263B (en) | 2019-11-04 | 2019-11-04 | Method and equipment for controlling multifunctional recorder to record voice |
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| US20090273438A1 (en) * | 2008-05-01 | 2009-11-05 | Delphi Technologies, Inc. | Remote monitoring, interrogation and control apparatus for stationary and mobile systems |
| JP2011030120A (en) * | 2009-07-29 | 2011-02-10 | Aiphone Co Ltd | Interphone system |
| CN202721729U (en) * | 2012-07-30 | 2013-02-06 | 泉州市铁通电子设备有限公司 | Wireless mobile station voice recording instrument for railway track maintenance and electric service |
| CN103905928A (en) * | 2012-12-25 | 2014-07-02 | 安科智慧城市技术（中国）有限公司 | Network voice intercom method, device and system |
| CN105516524A (en) * | 2015-12-18 | 2016-04-20 | 合肥寰景信息技术有限公司 | Network voice synchronous de-noising communication method |
| CN105657366A (en) * | 2016-01-04 | 2016-06-08 | 深圳中盈创展科技有限公司 | Single-policeman law enforcement video and audio recorder with independent recording function |
| CN110316113A (en) * | 2018-03-29 | 2019-10-11 | 比亚迪股份有限公司 | Vehicle-mounted multimedia terminal and its call method, vehicle mounted multimedia phone system and vehicle |
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2019
- 2019-11-04 CN CN201911064337.8A patent/CN112788263B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007096537A (en) * | 2005-09-27 | 2007-04-12 | Victor Co Of Japan Ltd | Speech repeater |
| US20090273438A1 (en) * | 2008-05-01 | 2009-11-05 | Delphi Technologies, Inc. | Remote monitoring, interrogation and control apparatus for stationary and mobile systems |
| JP2011030120A (en) * | 2009-07-29 | 2011-02-10 | Aiphone Co Ltd | Interphone system |
| CN202721729U (en) * | 2012-07-30 | 2013-02-06 | 泉州市铁通电子设备有限公司 | Wireless mobile station voice recording instrument for railway track maintenance and electric service |
| CN103905928A (en) * | 2012-12-25 | 2014-07-02 | 安科智慧城市技术（中国）有限公司 | Network voice intercom method, device and system |
| CN105516524A (en) * | 2015-12-18 | 2016-04-20 | 合肥寰景信息技术有限公司 | Network voice synchronous de-noising communication method |
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| CN112788263B (en) | 2023-06-23 |
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