CN106531144A - Noise reduction method and device - Google Patents
Noise reduction method and device Download PDFInfo
- Publication number
- CN106531144A CN106531144A CN201610957070.5A CN201610957070A CN106531144A CN 106531144 A CN106531144 A CN 106531144A CN 201610957070 A CN201610957070 A CN 201610957070A CN 106531144 A CN106531144 A CN 106531144A
- Authority
- CN
- China
- Prior art keywords
- acoustic signals
- backward
- wave signal
- terminal device
- noise reduction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/105—Appliances, e.g. washing machines or dishwashers
- G10K2210/1053—Hi-fi, i.e. anything involving music, radios or loudspeakers
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/128—Vehicles
- G10K2210/1281—Aircraft, e.g. spacecraft, airplane or helicopter
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3051—Sampling, e.g. variable rate, synchronous, decimated or interpolated
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
- Noise Elimination (AREA)
Abstract
The present invention relates to a noise reduction method and device, wherein the method comprises the steps of using at least one receiver built in a terminal device to receive a sound signal, and generating a sound wave signal according to the sound signal; calculating and sending a backward wave signal according to the sound wave signal; executing an operation of offsetting the sound wave signal by the vibration propagation of the backward wave signal. The above method can solve the problem that the sound is not outputted loudly, and enables the noise reduction high efficiency and usability to be improved effectively.
Description
Technical field
The present invention relates to terminal device noise elimination communication technical field, more particularly to a kind of noise reduction method and device.
Background technology
With the development of science and technology, attention degree of the noise elimination technique in industrial environment with living environment is constantly lifted, tradition
Noise reduction method carry out simple noise reduction process simply by terminal device, the not high efficiency with noise reduction and ease for use.
The content of the invention
In consideration of it, being necessary the problem existed for conventional art, there is provided a kind of noise reduction method and device, can solve the problem that
The not outer problem put of sound, and there is high efficiency to noise reduction.
To reach goal of the invention, there is provided a kind of noise reduction method, methods described include：Terminal device is built-in at least one to be connect
Receive device and receive voice signal, acoustic signals are generated according to the voice signal；Calculated according to the acoustic signals and sent reversely
Ripple signal；The operation for offsetting the acoustic signals is performed by the Vibration propagation of the backward-wave signal.
It is wherein in one embodiment, described to wrap the step of calculated according to the acoustic signals and send backward-wave signal
Include：The average acoustic signals sampled in preset time period in the terminal device preset range；Obtain the average sound wave
The frequency of signal is with amplitude as training sample；By the described average sound wave in preset range described in the terminal device of record
The frequency of signal is matched in the training sample with amplitude, to obtain the backward-wave signal.
Wherein in one embodiment, described execution by the Vibration propagation of the backward-wave signal offsets the sound wave letter
Number operation the step of include：Counteracting is performed by the Vibration propagation of the backward-wave signal in the way of quiet or reduction volume
The operation of the acoustic signals.
Wherein in one embodiment, the terminal device is intelligent television, sound equipment, internet game machine, PC, shifting
One or more in dynamic terminal, mobile phone, small aircraft and personal digital assistant.
Based on a kind of silencing means of same inventive concept, described device includes：Receive and generation module, set for terminal
Standby at least one built-in receiver receives voice signal, generates acoustic signals according to the voice signal；Computing module, is used for
Backward-wave signal is calculated and is sent according to the acoustic signals；Cancellation module, passes for the vibration by the backward-wave signal
Broadcast and perform the operation for offsetting the acoustic signals.
Wherein in one embodiment, the computing module includes：Sampling module, for sampling in preset time period
Average acoustic signals in the terminal device preset range；Acquisition module, for obtaining the frequency of the average acoustic signals
With amplitude as training sample；Record and matching module, for institute that will be described in the terminal device of record in preset range
The frequency for stating average acoustic signals is matched in the training sample with amplitude, to obtain the backward-wave signal.
Wherein in one embodiment, the cancellation module is additionally operable in the way of quiet or reduction volume by described anti-
The operation for offsetting the acoustic signals is performed to the Vibration propagation of ripple signal.
Wherein in one embodiment, the terminal device is intelligent television, sound equipment, internet game machine, PC, shifting
One or more in dynamic terminal, mobile phone, small aircraft and personal digital assistant.
Beneficial effects of the present invention include：Above-mentioned noise reduction method and device, at least one built-in receiver of terminal device
Voice signal is received, acoustic signals are generated according to voice signal；Backward-wave signal is calculated and is sent according to acoustic signals；By anti-
The operation for offsetting acoustic signals is performed to the Vibration propagation of ripple signal.Said method can solve the problem that the not outer problem put of sound, have
The high efficiency and ease for use that improve noise reduction of effect.
Description of the drawings
Fig. 1 be one embodiment of the invention in a kind of noise reduction method the step of flow chart；And
Structural representations of the Fig. 2 for a kind of silencing means in one embodiment of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples to this
Invention noise reduction method and device are further elaborated.It should be appreciated that specific embodiment described herein is only to solve
The present invention is released, is not intended to limit the present invention.
As shown in figure 1, flow chart the step of a kind of noise reduction method in for one embodiment.Specifically include following steps：
Step 102, at least one built-in receiver of terminal device receive voice signal, generate sound wave according to voice signal
Signal.Wherein, terminal device is intelligent television, sound equipment, internet game machine, PC, mobile terminal, mobile phone, small-sized
One or more in aircraft and personal digital assistant.Thus, the equipment of noise reduction is solved the problems, such as in improve the present embodiment
Diversity.
Step 104, calculates and sends backward-wave signal according to acoustic signals.
In the present embodiment, include the step of backward-wave signal is calculated and sent according to acoustic signals：In preset time period
Average acoustic signals in interior sampling terminal device preset range；The frequency and amplitude of average acoustic signals are obtained as training sample
This；The frequency of the average acoustic signals in the terminal device preset range of record is matched in training sample with amplitude,
To obtain backward-wave signal.
Step 106, performs the operation for offsetting acoustic signals by the Vibration propagation of backward-wave signal.
In the present embodiment, performing the step of offsetting the operation of acoustic signals by the Vibration propagation of backward-wave signal includes：
The operation for offsetting acoustic signals is performed by the Vibration propagation of backward-wave signal in the way of quiet or reduction volume.
A kind of noise reduction method that the present invention is provided, at least one built-in receiver of terminal device receive voice signal, root
Acoustic signals are generated according to voice signal；Backward-wave signal is calculated and is sent according to acoustic signals；By the vibration of backward-wave signal
Propagate and perform the operation for offsetting acoustic signals.Said method can solve the problem that the not outer problem put of sound, effectively raise noise reduction
High efficiency and ease for use.
Based on same inventive concept, additionally provide a kind of silencing means, due to this device solve problem principle with it is aforementioned
A kind of noise reduction method is similar, therefore, implementing for the device can be according to the realization of the concrete steps of preceding method, and repetition part is no longer
Repeat.
As shown in Fig. 2 a kind of structural representation of the silencing means in for one embodiment.The silencing means 10 includes：
Receive and generation module 200, computing module 400 and cancellation module 600.
Wherein, receiving is used for the built-in at least one receiver reception voice signal of terminal device, root with generation module 200
Acoustic signals are generated according to voice signal；Computing module 400 for calculating and send backward-wave signal according to acoustic signals；Offset mould
Block 600 is used to perform the operation for offsetting acoustic signals by the Vibration propagation of backward-wave signal.Wherein, terminal device is intelligence electricity
Depending on, in sound equipment, internet game machine, PC, mobile terminal, mobile phone, small aircraft and personal digital assistant one
It is individual or multiple.Thus, the diversity of the equipment of noise reduction is solved the problems, such as in improve the present embodiment.
In the present embodiment, computing module 400 includes 410 (not shown) of sampling module in preset time period
Average acoustic signals in sampling terminal device preset range；420 (not shown) of acquisition module is used to obtain average sound wave
The frequency of signal is with amplitude as training sample；Record with 430 (not shown) of matching module for the terminal of record is set
The frequency of the average acoustic signals in standby preset range is matched in training sample with amplitude, to obtain backward-wave signal.
Additionally, cancellation module 600 is additionally operable in the way of quiet or reduction volume by the Vibration propagation of backward-wave signal
Perform the operation for offsetting acoustic signals.Thus, improve the multi-selection that cancellation module is applied under different scenes.
A kind of silencing means that the present invention is provided, causes terminal device built-in at least with generation module 200 by receiving
One receiver receives voice signal, generates acoustic signals according to voice signal；Again by computing module 400 according to acoustic signals
Calculate and send backward-wave signal；Performed by the Vibration propagation of backward-wave signal eventually through cancellation module 600 and offset sound wave
The operation of signal.Said apparatus can solve the problem that the not outer problem put of sound, effectively raise the high efficiency and ease for use of noise reduction.
One of ordinary skill in the art will appreciate that all or part of flow process in realizing above-described embodiment method, can be
Instruct related hardware to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Each technical characteristic of embodiment described above arbitrarily can be combined, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (8)
1. a kind of noise reduction method, it is characterised in that methods described includes：
At least one built-in receiver of terminal device receives voice signal, generates acoustic signals according to the voice signal；
Backward-wave signal is calculated and is sent according to the acoustic signals；
The operation for offsetting the acoustic signals is performed by the Vibration propagation of the backward-wave signal.
2. noise reduction method according to claim 1, it is characterised in that described to be calculated according to the acoustic signals and send anti-
The step of to ripple signal, includes：The average acoustic signals sampled in preset time period in the terminal device preset range；
The frequency and amplitude of the average acoustic signals are obtained as training sample；
By the frequency of the described average acoustic signals in preset range described in the terminal device of record with amplitude in the instruction
Matched in practicing sample, to obtain the backward-wave signal.
3. noise reduction method according to claim 1, it is characterised in that the Vibration propagation by the backward-wave signal
Performing the step of offsetting the operation of the acoustic signals includes：Pass through the backward-wave signal in the way of quiet or reduction volume
Vibration propagation perform the operation for offsetting the acoustic signals.
4. noise reduction method according to claim 1, it is characterised in that the terminal device is intelligent television, sound equipment, networking
One or more in game machine, PC, mobile terminal, mobile phone, small aircraft and personal digital assistant.
5. a kind of silencing means, it is characterised in that described device includes：
Receive and generation module, voice signal is received at least one built-in receiver of terminal device, according to the sound
Signal generation acoustic signals；
Computing module, for being calculated according to the acoustic signals and sending backward-wave signal；
Cancellation module, performs the operation for offsetting the acoustic signals for the Vibration propagation by the backward-wave signal.
6. silencing means according to claim 5, it is characterised in that the computing module includes：Sampling module, for
Average acoustic signals in preset time period in the sampling terminal device preset range；
Acquisition module, for obtaining the frequency of the average acoustic signals with amplitude as training sample；
Record and matching module, for by the described average acoustic signals described in the terminal device of record in preset range
Frequency is matched in the training sample with amplitude, to obtain the backward-wave signal.
7. silencing means according to claim 5, it is characterised in that the cancellation module is additionally operable to quiet or reduce sound
The mode of amount performs the operation for offsetting the acoustic signals by the Vibration propagation of the backward-wave signal.
8. silencing means according to claim 5, it is characterised in that the terminal device is intelligent television, sound equipment, networking
One or more in game machine, PC, mobile terminal, mobile phone, small aircraft and personal digital assistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957070.5A CN106531144A (en) | 2016-10-27 | 2016-10-27 | Noise reduction method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957070.5A CN106531144A (en) | 2016-10-27 | 2016-10-27 | Noise reduction method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531144A true CN106531144A (en) | 2017-03-22 |
Family
ID=58325611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610957070.5A Pending CN106531144A (en) | 2016-10-27 | 2016-10-27 | Noise reduction method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113992772A (en) * | 2021-10-12 | 2022-01-28 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538718A (en) * | 2003-04-18 | 2004-10-20 | 摩托罗拉公司 | Method and system of automatic preventing talking listened by another microphone |
| CN103000184A (en) * | 2011-09-15 | 2013-03-27 | Jvc建伍株式会社 | Noise reduction apparatus, audio input apparatus, wireless communication apparatus, and noise reduction method |
| CN103581385A (en) * | 2012-08-06 | 2014-02-12 | 百度在线网络技术（北京）有限公司 | Mobile terminal with sound attenuation function and method for conducting sound attenuation through mobile terminal |
-
2016
- 2016-10-27 CN CN201610957070.5A patent/CN106531144A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1538718A (en) * | 2003-04-18 | 2004-10-20 | 摩托罗拉公司 | Method and system of automatic preventing talking listened by another microphone |
| CN103000184A (en) * | 2011-09-15 | 2013-03-27 | Jvc建伍株式会社 | Noise reduction apparatus, audio input apparatus, wireless communication apparatus, and noise reduction method |
| CN103581385A (en) * | 2012-08-06 | 2014-02-12 | 百度在线网络技术（北京）有限公司 | Mobile terminal with sound attenuation function and method for conducting sound attenuation through mobile terminal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113992772A (en) * | 2021-10-12 | 2022-01-28 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
| CN113992772B (en) * | 2021-10-12 | 2024-03-01 | 维沃移动通信有限公司 | Electronic equipment and audio signal processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10438607B2 (en) | Device and method for cancelling echo | |
| US9640194B1 (en) | Noise suppression for speech processing based on machine-learning mask estimation | |
| CN111161752A (en) | Echo cancellation method and device | |
| US11380312B1 (en) | Residual echo suppression for keyword detection | |
| Martinek et al. | Use of adaptive filtering for noise reduction in communications systems | |
| WO2014181330A1 (en) | A method and apparatus for suppression of unwanted audio signals | |
| CN106558315B (en) | Heterogeneous microphone automatic gain calibration method and system | |
| CN106251856B (en) | Environmental noise elimination system and method based on mobile terminal | |
| EP2752848B1 (en) | Method and apparatus for generating a noise reduced audio signal using a microphone array | |
| US9185506B1 (en) | Comfort noise generation based on noise estimation | |
| Antweiler et al. | Perfect-sweep NLMS for time-variant acoustic system identification | |
| CN113744748B (en) | Training method of network model, echo cancellation method and equipment | |
| CN105721729B (en) | Based on the sparse proportional echo cancel method for reusing weight coefficient affine projection of block | |
| CN101233561A (en) | Enhancement of speech intelligibility in a mobile communication device by controlling the operation of a vibrator of a vibrator in dependance of the background noise | |
| CN112712816A (en) | Training method and device of voice processing model and voice processing method and device | |
| CN101447189A (en) | Voice interference method | |
| CN102883244B (en) | The device and method of acoustic shock protection | |
| CN106531144A (en) | Noise reduction method and device | |
| CN103167376A (en) | Directional loudspeaker and signal processing method thereof | |
| US8700391B1 (en) | Low complexity bandwidth expansion of speech | |
| Tang et al. | A modulation method of parametric array for underwater acoustic communication | |
| CN116612778B (en) | Echo and noise suppression method, related device and medium | |
| WO2023051622A1 (en) | Method for improving far-field speech interaction performance, and far-field speech interaction system | |
| CN204119309U (en) | A kind of mobile phone estimating adjustment In Call automatically based on noise | |
| US20110211711A1 (en) | Factor setting device and noise suppression apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |