CN104869502A - Sound effect gain method - Google Patents
Sound effect gain method Download PDFInfo
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- CN104869502A CN104869502A CN201510120665.0A CN201510120665A CN104869502A CN 104869502 A CN104869502 A CN 104869502A CN 201510120665 A CN201510120665 A CN 201510120665A CN 104869502 A CN104869502 A CN 104869502A
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Abstract
The invention relates to a sound effect gain method. According to the sound effect gain method, a plurality of sound receiving devices arranged in a space are utilized; after positioning, sound waveform signals generated by received sound signals are transmitted to a host device; optimization operation is performed on the sound waveform signals, so that optimized sound signals can be generated; and therefore, better sound effect gain can be obtained with low cost.
Description
Technical field
The present invention about a kind of audio gain method, espespecially a kind of audio gain method being applicable to distributed system.
Background technology
To momentous conference be carried out in the past, or during the recording of high-quality audio, usually need select place and the equipment of particular design.Such as there is the meeting room of sound-absorbing process metope, recording studio, or utilize microphone array to carry out radio reception and rear process processed etc.
But the cost needing at substantial with the installing of equipment is built in these places, and be difficult to mobile and adjustment, therefore really relatively less on the contrary by the chance used.
In modern society, every professional division is got over meticulous, and the technological layer that every special project or business contain gets over complexity on the contrary.Therefore, the promotion of a special project or business, usually needs the professional in each field carry out meeting, discussion or coordinate just to be carried out.Such meeting all likely occurs whenever and wherever possible, but good meeting place not can obtain at any time.
Therefore, as how lower cost, and can carry out audio gain process whenever and wherever possible, be in fact industry problem urgently to be resolved hurrily.
Summary of the invention
Have mirror in the problems referred to above, the present invention proposes a kind of audio gain method, espespecially a kind of audio gain method being applicable to distributed system.
Audio gain method of the present invention, is applicable to a distributed system, and this distributed system includes multiple audio signal reception device and a host apparatus, and each audio signal reception device is arranged in a space respectively, and can carry out transfer of data with host apparatus respectively; This audio gain method includes: the position of locating each audio signal reception device and a sound generation source; Utilize each audio signal reception device to receive a voice signal of this sound generation source generation respectively, and produce the sound wave signal corresponding to this voice signal; Produced sound wave signal is sent to host apparatus by each audio signal reception device respectively; And an optimization computing is carried out to the sound wave signal of each audio signal reception device, and produce an optimization voice signal.
In one embodiment, wherein this optimization computing is the distance of more each audio signal reception device and this sound generation source, and this optimization voice signal gets the sound wave signal that the audio signal reception device nearest with this sound generation source produces.
In one embodiment, wherein the step of each audio signal reception device in this location and this sound generation source position may be selected to be one of them of a global positioning system positioning step, an agps system positioning step and an image positioning step.
In one embodiment, wherein this optimization computing may be selected to be beam forming computing, echo cancellation computing, noise eliminate computing, echo eliminate computing, message gain operation and knockdown one of them.
In one embodiment, the step this optimization voice signal being sent to each audio signal reception device is more included; Wherein each audio signal reception device includes a loud speaker respectively, in order to play this optimization voice signal.
In one embodiment, the transfer of data wherein between each audio signal reception device and host apparatus may be selected to be wire transmission or wireless transmission.
In one embodiment, wherein this wireless transmission may be selected to be one of them of Bluetooth wireless transmission, wireless network transmissions, radio frequency wireless transmission and sonic transmissions.
In one embodiment, wherein each audio signal reception device can be chosen as speakerphone, wire telephone, radiophone, mobile phone, bluetooth earphone microphone, wire microphone, wireless microphone respectively, has wired loud speaker of microphone and have one of them of wireless speaker of microphone.
In one embodiment, the step of reorientating each audio signal reception device and this sound generation source with a setting cycle is more included.
The present invention still provides a kind of audio gain method, is applicable to a distributed system, and this distributed system includes one first audio signal reception device and at least one second audio signal reception device, and each audio signal reception device is arranged in a space respectively, and mutually can carry out transfer of data; This audio gain method includes: locate each audio signal reception device; Utilize each audio signal reception device to receive a voice signal respectively, and produce the sound wave signal corresponding to this voice signal; Produced sound wave signal is sent to the first audio signal reception device by each second audio signal reception device respectively; And an optimization computing is carried out to the sound wave signal of each audio signal reception device, and produce an optimization voice signal.
In one embodiment, this optimization computing may be selected to be beam forming computing, echo cancellation computing, noise eliminate computing, echo eliminate computing, message gain operation and knockdown one of them.
In one embodiment, wherein each audio signal reception device includes a loud speaker respectively, in order to play this optimization voice signal.
In one embodiment, wherein the step of each audio signal reception device in this location may be selected to be one of them of a wireless radio frequency transmission positioning step, a wire transmission positioning step, a sonic transmissions positioning step, a global positioning system positioning step, an agps system positioning step and an image positioning step.
In one embodiment, the step of reorientating each audio signal reception device with a setting cycle is more included.
In one embodiment, wherein each audio signal reception device can be chosen as speakerphone, wire telephone, radiophone, mobile phone, bluetooth earphone microphone, wire microphone, wireless microphone respectively, has wired loud speaker of microphone and have one of them of wireless speaker of microphone.
Based on above-mentioned, the audio gain method of distributed system of the present invention, utilizes the multiple audio signal reception devices be arranged in space, mutually transmits data and is optimized computing, using generation one and optimize voice signal, can obtain preferably audio gain by lower cost.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of distributed system one embodiment of the present invention;
Fig. 2 is the flow chart of audio gain method one embodiment of the present invention;
Fig. 3 is the schematic diagram of another embodiment of distributed system of the present invention;
Fig. 4 is the flow chart of another embodiment of audio gain method of the present invention.
Primary clustering symbol description:
10 distributed system 101 spaces
103 coordinate 12 audio signal reception devices
121 loud speaker 14 host apparatus
16 camera 18 sound generation source
181 voice signals
201-215 step
30 distributed system 301 spaces
303 coordinate 32 first audio signal reception devices
321 loud speaker 34 second audio signal reception devices
341 loud speaker 36 cameras
401-415 step
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.Identical symbology has component or the device of identical or similar functions.Connect or link and represent directly or indirectly connection.
Referring to Fig. 1 and Fig. 2, is the schematic diagram of distributed system one embodiment of the present invention and the flow chart of audio gain method one embodiment respectively.As shown in the figure, distributed system 10 of the present invention includes multiple audio signal reception device (picking device) 12 and a host apparatus 14.Wherein, each audio signal reception device 12 is arranged in a space 101 respectively, in order to receive the voice signal 181 that a sound generation source 18 produces.Each audio signal reception device 12 can carry out transfer of data with host apparatus 14 respectively.Audio gain method of the present invention, first provides host apparatus 14 and multiple audio signal reception device 12 of distributed system 10, and locates the position of each audio signal reception device 12 and this sound generation source 18, as step 201 and step 203.Secondly, the voice signal 181 utilizing each audio signal reception device 12 to receive this sound generation source 18 respectively to produce, and produce the sound wave signal corresponding to this voice signal 181, as step 205.
Then, produced sound wave signal is sent to host apparatus 12, as step 207 by each audio signal reception device 12 respectively.
Finally, by host apparatus 14, an optimization computing is carried out to the sound wave signal that each audio signal reception device 12 produces, and produce an optimization voice signal, as step 209 and step 211.
In one embodiment of this invention, optimizing computing can the distance of more each audio signal reception device 12 and sound generation source 18, optimizes voice signal and then gets the sound wave signal that the audio signal reception device 12 nearest with sound generation source 18 produce.This embodiment is the simplest embodiment of audio gain method of the present invention.Its principle gets the sound wave signal that voice signal 181 that the audio signal reception device 12 closest to sound generation source 18 receives produces.Because this audio signal reception device 12 is closest to sound generation source 18, voice signal 181 intensity received is maximum, and its background noise intensity is relatively little, gets software and hardware resources and computing cost that its sound wave signal can be minimum, obtains and preferably optimize voice signal.
In one embodiment of this invention, the step of locating each audio signal reception device 12 and sound generation source 18 can utilize global positioning system (Global Positioning System, GPS) locate, agps system (AssistedGlobal Positioning System, AGPS) is located or the mode of image location is carried out.In one embodiment of this invention, if each audio signal reception device 12 and sound generation source 18 are all equipped with gps signal receiver, then gps system can be utilized to position.In another embodiment, if each audio signal reception device 12 and sound generation source 18 all have the ability of AGPS system location, such as, use mobile phone, then AGPS system can be utilized to position.In another embodiment, if distributed system 10 includes a camera 16, then camera 16 can be utilized to capture the image in space 101, coordinate the technology of image identification and analysis to position.
After the relative position of each audio signal reception device 12 completes location, a coordinate 103 can be set up in this space 101.When sound generation source 18 sends a voice signal 181, each audio signal reception device 12 receives this voice signal 181 in different positions.Due to the difference of position and distance, the voice signal 181 that each audio signal reception device 12 receives will have the difference of intensity and phase place, coordinate the position location of each audio signal reception device 12 in coordinate 103, and the relevance of sound waveform carries out beam forming (Beamforming) computing, (noise reduction) computing, the computing such as elimination (de-reverberation) computing and message gain (gain boost) computing of echoing are eliminated in echo cancellation (echocancellation) computing, noise, use the optimization voice signal of acquiring demand.
In one embodiment of this invention, the transfer of data between each audio signal reception device 12 and host apparatus 14 may be selected to be wire transmission or wireless transmission.Wherein, wireless transmission may be selected to be blue teeth wireless (Bluetooth) transmission, wireless network (Wi-Fi) transmission, wireless radiofrequency (radio frequency) transmission and one of them of sonic transmissions (acoustictransmission).
In one embodiment of this invention, in distributed system 10, each audio signal reception device 12 can include a loud speaker 121 respectively, in order to play this optimization voice signal.Audio gain method of the present invention then includes optimization voice signal is sent to each audio signal reception device 12, and the loud speaker 121 recycling each audio signal reception device 12 plays this optimization voice signal, as step 213 and step 215.In the present invention, this optimization voice signal is except loud speaker 121 broadcasting that can utilize each audio signal reception device 12, and network or other means of communication still can be utilized optimization voice signal to be sent to a far end device and play, for far-end conference participation, person listens to.
In one embodiment of this invention, each audio signal reception device 12 can be chosen as speakerphone (speakerphone), wire telephone, radiophone, mobile phone, bluetooth earphone microphone (Bluetoothheadset), wire microphone, wireless microphone respectively, has wired loud speaker of microphone and have one of them of wireless speaker of microphone.
In one embodiment of this invention, the step of reorientating each audio signal reception device 12 with a setting cycle is still included.Because audio signal reception device 12 of the present invention may be that the electronic installation carried with by meeting participant is implemented, such as mobile phone or bluetooth earphone microphone.When participant moves, or when audio signal reception device 12 is moved, namely each audio signal reception device 12 changes with the relative position of sound generation source 18, need reorientate each audio signal reception device 12 and sound generation source 18 just preferably can optimize computing.
Referring to Fig. 3 and Fig. 4, is the schematic diagram of another embodiment of distributed system of the present invention and the flow chart of another embodiment of audio gain method respectively.As shown in the figure, the distributed system 30 of the present embodiment includes one first audio signal reception device 32 and at least one second audio signal reception device 34, and each audio signal reception device 32,34 is arranged in a space 301 respectively, can carry out transfer of data respectively between each audio signal reception device 32,34.
The audio gain method of the present embodiment, first provides the first audio signal reception device 32 of distributed system 30 and at least one second audio signal reception device 34 to be arranged at respectively in space 301, and carries out the positioning step of each audio signal reception device 32,34, as step 401 and step 403.Secondly, the voice signal 181 utilizing each audio signal reception device 32,34 to receive a sound generation source 18 respectively to produce, and produce the sound wave signal corresponding to this voice signal 181, as step 405.Then, produced sound wave signal is sent to the first audio signal reception device 32, as step 407 by each second audio signal reception device 34 respectively.Finally, utilize the sound wave signal of this first audio signal reception device 32 to each audio signal reception device 32,34 to carry out an optimization computing, and produce an optimization voice signal, as step 409 and step 411.
In the present invention, due to mutually transfer of data can be carried out between each audio signal reception device 32,34, therefore every transfer of data agreement calculating distance each other can be utilized, orient the relative position between each audio signal reception device 32,34.Wherein, when carrying out data in the mode of wireless transmission between each audio signal reception device 32,34, the location of each audio signal reception device 32,34 can utilize the wireless transmission locate modes such as Bluetooth wireless transmission location, wireless network transmissions location or radio frequency wireless transmission location to carry out, and has come location according to the transfer of data agreement between each audio signal reception device 32,34.If mutually carry out transfer of data in the mode of wire transmission between each audio signal reception device 32,34, then the mode that wire transmission can be utilized to locate positions.Or, if each audio signal reception device 32,34 has the function of global positioning system, global positioning system (GPS) location, agps system (AGPS) location etc. locate mode also can be used to position.
In one embodiment of this invention, sound wave can be utilized to carry out transfer of data between each audio signal reception device 32,34.Now, the positioning step of each audio signal reception device 32,34 then can utilize sonic transmissions to locate.Each audio signal reception device 32,34 can in time utilizing sonic transmissions data, calculates distance each other, and go out a coordinate 303 according to distance construction each other according to the attenuation of intensity of acoustic wave.
In one embodiment of this invention, still can be provided with a camera 36, connect this first audio signal reception device 32, in order to absorb the image in this space 301.The image obtained is sent to the first audio signal reception device and carries out image analysing computer and location, except can carrying out the location of each audio signal reception device 32,34, still can locate the position of sound generation source 18.In the present embodiment, when the position of each audio signal reception device 32,34 or occurring source 18 changes, the location revising each audio signal reception device 32,34 and sound generation source 18 during image positioning instant can be utilized.
After completing the location of each audio signal reception device 32,34, coordinate 303 can be set up according to the relative position of each audio signal reception device 32,34.According to this coordinate 303 and each position of audio signal reception device 32,34 in coordinate 303, the position of sound generation source 18 can be oriented via computing, and carry out beam forming computing according to the association of sound wave signal, echo cancellation computing, noise are eliminated computing, are echoed and eliminate the computing such as computing and message gain operation, use the optimization voice signal of acquiring demand.
In one embodiment of this invention, each audio signal reception device 32,34 includes a loud speaker 321,341 respectively.Audio gain method of the present invention still includes: the optimization voice signal of computing gained is sent to each second audio signal reception device 34, and plays this optimization voice signal, as step 413 and step 415 with the loud speaker 321,341 of each audio signal reception device 32,34.In the present invention, this optimization voice signal is except loud speaker 321,341 broadcasting that can utilize each audio signal reception device 32,34, and network or other means of communication still can be utilized optimization voice signal to be sent to a far end device and play, for far-end conference participation, person listens to.
In one embodiment of this invention, the step of reorientating each audio signal reception device 32,34 with a setting cycle is still included.
In one embodiment of this invention, each audio signal reception device 32,34 can be chosen as speakerphone, wire telephone, radiophone, mobile phone, bluetooth earphone microphone, wire microphone, wireless microphone respectively, has wired loud speaker of microphone and have one of them of wireless speaker of microphone.
The above is only the preferred embodiment of the present invention.Scope of the present invention is not limited with above-mentioned execution mode.Such as the personage haveing the knack of this case skill helps the equivalence done according to spirit of the present invention and modifies or change, all should be included in claims.
Claims (15)
1. an audio gain method, is applicable to a distributed system, and this distributed system includes multiple audio signal reception device and a host apparatus, and each audio signal reception device is arranged in a space respectively, and can carry out transfer of data with host apparatus respectively; It is characterized in that, this audio gain method includes:
Locate the position of each audio signal reception device and a sound generation source;
Utilize each audio signal reception device to receive a voice signal of this sound generation source generation respectively, and produce the sound wave signal corresponding to this voice signal;
Produced sound wave signal is sent to host apparatus by each audio signal reception device respectively; And
One optimization computing is carried out to the sound wave signal of each audio signal reception device, and produces an optimization voice signal.
2. audio gain method according to claim 1, is characterized in that, this optimization computing is the distance of more each audio signal reception device and this sound generation source, and this optimization voice signal gets the sound wave signal that the audio signal reception device nearest with this sound generation source produce.
3. audio gain method according to claim 1, is characterized in that, the step of each audio signal reception device in this location and this sound generation source position is a global positioning system positioning step, an agps system positioning step or an image positioning step.
4. audio gain method according to claim 3, is characterized in that, this optimization computing is beam forming computing, echo cancellation computing, noise eliminate computing, echo eliminate computing, message gain operation or its knockdown one of them.
5. audio gain method according to claim 1, is characterized in that, more includes the step this optimization voice signal being sent to each second audio signal reception device; Wherein each audio signal reception device includes a loud speaker respectively, in order to play this optimization voice signal.
6. audio gain method according to claim 1, is characterized in that, the transfer of data between each audio signal reception device and host apparatus is wire transmission or wireless transmission.
7. audio gain method according to claim 6, is characterized in that, this wireless transmission is Bluetooth wireless transmission, wireless network transmissions, radio frequency wireless transmission or sonic transmissions.
8. audio gain method according to claim 1, it is characterized in that, each audio signal reception device is speakerphone respectively, wire telephone, radiophone, mobile phone, bluetooth earphone microphone, wire microphone, wireless microphone, there is wired loud speaker of microphone or there is the wireless speaker of microphone.
9. audio gain method according to claim 1, is characterized in that, more includes the step of reorientating each audio signal reception device and this sound generation source with a setting cycle.
10. an audio gain method, is applicable to a distributed system, and this distributed system includes one first audio signal reception device and at least one second audio signal reception device, and each audio signal reception device is arranged in a space respectively, and mutually can carry out transfer of data; It is characterized in that, this audio gain method includes:
Locate each audio signal reception device;
Utilize each audio signal reception device to receive a voice signal respectively, and produce the sound wave signal corresponding to this voice signal;
Produced sound wave signal is sent to the first audio signal reception device by each second audio signal reception device respectively; And
One optimization computing is carried out to the sound wave signal of each audio signal reception device, and produces an optimization voice signal.
11. audio gain methods according to claim 10, is characterized in that, this optimization computing is beam forming computing, echo cancellation computing, noise eliminate computing, echo eliminate computing, message gain operation or its knockdown one of them.
12. audio gain methods according to claim 10, it is characterized in that, each audio signal reception device includes a loud speaker respectively, in order to play this optimization voice signal.
13. audio gain methods according to claim 10, it is characterized in that, the step of each audio signal reception device in this location is a wireless radio frequency transmission positioning step, a wire transmission positioning step, a sonic transmissions positioning step, a global positioning system positioning step, an agps system positioning step or an image positioning step.
14. audio gain methods according to claim 10, is characterized in that, more include the step of reorientating each audio signal reception device with a setting cycle.
15. audio gain methods according to claim 10, it is characterized in that, each audio signal reception device is speakerphone respectively, wire telephone, radiophone, mobile phone, bluetooth earphone microphone, wire microphone, wireless microphone, there is wired loud speaker of microphone or there is the wireless speaker of microphone.
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| CN105681991A (en) * | 2016-01-04 | 2016-06-15 | 恩平市亿歌电子有限公司 | Inaudible sound wave based wireless microphone signal transmission method and system |
| CN105828038A (en) * | 2016-03-31 | 2016-08-03 | 顾佳捷 | Industrial onsite multimedia wireless monitoring system and method based on CAN bus |
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