CN104796815A - Sound effect gain method of distributed system - Google Patents

Abstract

A sound effect gain method of a distributed system utilizes a radio device capable of mutually transmitting data to carry out sound effect gain. The invention utilizes a plurality of radio devices arranged in the space to mutually transmit data and carry out optimization operation so as to generate an optimized sound signal, and can obtain better sound effect gain with lower cost.

Description

Acoustic Gain Method for Distributed Systems

technical field

The invention relates to a sound effect gain method of a distributed system, in particular to a sound effect gain method applied to sound receiving devices capable of transmitting data to each other.

Background technique

In the past, it was usually necessary to select specially designed venues and equipment when conducting important meetings or recording high-quality sound effects. For example, meeting rooms and recording studios with sound-absorbing walls, or using microphone arrays for sound collection and post-production processing, etc.

However, the construction of these venues and the installation of equipment require a lot of cost, and it is difficult to move and adjust, so the chances of actually being used are relatively few.

In modern society, the professional division of labor is becoming more and more refined, while the technical aspects covered by each project or business are becoming more and more complicated. Therefore, the promotion of a project or business often requires meetings, discussions or coordination of professionals in various fields. Such meetings can happen anytime and anywhere, but good meeting venues are not always available.

Therefore, how to perform sound effect gain processing anytime and anywhere at a lower cost is an urgent problem to be solved in the industry.

Contents of the invention

In view of the above problems, the purpose of the present invention is to propose a method for sound effect gain in a distributed system, which uses sound receiving devices that can transmit data to each other to perform sound effect gain.

The sound effect gain method of the distributed system of the present invention includes: providing a plurality of sound receiving devices, which are respectively arranged in a space, and data transmission can be carried out between each sound receiving device respectively: using each sound receiving device to receive a sound signal respectively, and generate a corresponding A sound information of the sound signal; each sound receiving device transmits the generated sound information to the rest of the sound receiving devices; and an optimization operation is performed on the sound information of each sound receiving device, and an optimized sound signal is generated.

In one embodiment, each sound information includes a sound intensity and a sound waveform respectively, the optimization operation is to compare the magnitudes of the sound intensities, and the optimized sound signal is the sound waveform with the highest sound intensity.

In an embodiment, the data transmission between the sound receiving devices can be selected to be wired transmission or wireless transmission.

In an embodiment, the wireless transmission can be selected to be one of Bluetooth wireless transmission, wireless network transmission, radio frequency wireless transmission and sound wave transmission.

In one embodiment, a step of locating each sound receiving device is further included.

In an embodiment, the optimization operation may be selected to be one of beamforming operation, echo cancellation operation, noise cancellation operation, echo cancellation operation, audio gain operation and combinations thereof.

In one embodiment, it further includes the step of providing an operation module for performing the optimization operation and generating the optimized sound signal.

In an embodiment, the computing module can be selectively installed in one of the plurality of sound receiving devices.

In one embodiment, it further includes the step of providing a host device, the host device can perform data transmission with each radio device respectively, wherein the host device is provided with the computing module.

In one embodiment, each sound receiving device includes a speaker for playing the optimized sound signal.

In one embodiment, the step of locating each sound receiving device can be selected as one of a radio frequency transmission locating step, a wired transmission locating step, an acoustic wave transmission locating step, a global positioning system locating step and an image locating step one.

In one embodiment, it further includes a step of relocating each sound receiving device at a set period.

In one embodiment, each sound receiving device can be selected to be a loudspeaker, a wired telephone, a wireless telephone, a mobile phone, a Bluetooth headset microphone, a wired microphone, a wireless microphone, a wired speaker with a microphone, and a wireless microphone with a microphone. One of the speakers.

The present invention still provides a sound effect gain method of a distributed system, which includes: providing a first sound receiving device and at least one second sound receiving device, each sound receiving device is respectively arranged in a space, and data can be separately transmitted between each sound receiving device Transmission, wherein the first sound receiving device has a computing module; use each sound receiving device to receive a sound signal respectively, and generate a sound information corresponding to the sound signal; each second sound receiving device transmits the generated sound information to the first sound receiving device respectively A sound receiving device; and using the operation module to perform an optimization operation on the sound information of each sound receiving device, and generate an optimized sound signal.

In one embodiment, a step of locating each sound receiving device is further included.

In an embodiment, the optimization operation may be selected to be one of beamforming operation, echo cancellation operation, noise cancellation operation, echo cancellation operation, audio gain operation and combinations thereof.

In one embodiment, it further includes a step of transmitting the optimized sound signal to each second sound receiving device; wherein each sound receiving device includes a speaker for playing the optimized sound signal.

In one embodiment, the step of locating each sound receiving device may be one of a radio frequency transmission locating step, a wired transmission locating step, an acoustic wave transmission locating step, a global positioning system locating step and an image locating step one.

In one embodiment, it further includes a step of relocating each sound receiving device at a set period.

In one embodiment, each sound receiving device can be selected to be a loudspeaker, a wired telephone, a wireless telephone, a mobile phone, a Bluetooth headset microphone, a wired microphone, a wireless microphone, a wired speaker with a microphone, and a wireless microphone with a microphone. One of the speakers.

Based on the above, the sound effect gain method of the distributed system of the present invention uses a plurality of sound receiving devices installed in the space to transmit data to each other and perform optimization calculations to generate an optimized sound signal, which can obtain better sound effect gain at a lower cost .

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

Description of drawings

Fig. 1 is a schematic diagram of an embodiment of the distributed system of the present invention;

Fig. 2 is a flowchart of an embodiment of the sound effect gain method of the present invention;

Fig. 3 is a schematic diagram of another embodiment of the distributed system of the present invention;

Fig. 4 is a flow chart of another embodiment of the sound effect gain method of the present invention;

Fig. 5 is a schematic diagram of another embodiment of the distributed system of the present invention.

Among them, reference signs

10 Distributed System 101 Space

103 Coordinates 12 Radio Device

123 Computing module 18 Sound source

181 Sound signal

201-207 steps

30 Distributed System 301 Space

303 Coordinates 32 The first radio device

321 Speaker 323 Computing Module

34 Second radio device 341 Loudspeaker

36 photography device

Steps 401-415

50 Distributed System 52 Radio Device

521 Speaker 54 Host device

541 Operation module

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The same symbols represent components or devices with the same or similar functions. Connection or linkage means a direct or indirect connection.

Please refer to FIG. 1 and FIG. 2 , which are respectively a schematic diagram of an embodiment of a distributed system and a flow chart of an embodiment of a sound effect enhancement method according to the present invention. As shown in the figure, the distributed system 10 of the present invention includes a plurality of picking devices (picking devices) 12, which are respectively arranged in a space 101, wherein data transmission can be performed between the picking devices 12 respectively. The sound effect gain method of the present invention, at first is to provide a plurality of sound receiving devices 12 of the distributed system 10, which are respectively arranged in the space 101; Sound information corresponding to the sound signal, as in step 201 and step 203 .

Next, each sound receiving device 12 transmits the generated sound information to each other, that is, transmits the generated sound information to the remaining sound receiving devices 12 respectively, as in step 205 .

Finally, each sound receiving device 12 performs an optimization operation on the sound information of each sound receiving device, and generates an optimized sound signal, as in step 207 and step 209 .

In an embodiment of the present invention, the sound information generated by each sound receiving device 12 includes sound intensity and sound waveform. After each sound receiving device 12 transmits sound information to each other, an optimization calculation can be performed according to the sound information generated by each sound receiving device 12 to generate an optimized sound signal.

In an embodiment of the present invention, the optimization operation can compare the sound intensity of the sound information generated by each sound receiving device 12 , and the optimized sound signal selects the sound waveform with the highest sound intensity. This embodiment is the simplest embodiment of the sound effect gain method of the present invention. The principle is to use the sound waveform generated by the sound signal 181 received by the sound receiving device 12 closest to the sound source 18 . Since the sound receiving device 12 is closest to the sound source 18, the intensity of the received sound signal 181 is the largest, and the intensity of the background noise is relatively small, so choosing the sound waveform can obtain better optimized sound with the least software and hardware resources and computing costs. Signal.

In an embodiment of the present invention, the data transmission between the sound receiving devices 12 can be selected to be wired transmission or wireless transmission. Wherein, the wireless transmission may be selected to be one of Bluetooth wireless (Bluetooth) transmission, wireless network (Wi-Fi) transmission, radio frequency wireless (radio frequency) transmission and acoustic transmission (acoustic transmission).

In an embodiment of the present invention, a step of locating each sound receiving device 12 may also be included. Since the radio receivers 12 of the present invention can transmit data to each other, various protocols for data transmission and parameters of the transmitted signals can be used to calculate the distance between each other, so as to locate the relative positions of the radio receivers 12 . Wherein, when the radio transmission devices 12 transmit data to each other by wireless transmission, wireless radio frequency transmission positioning can be used, such as Bluetooth wireless transmission positioning, wireless network transmission positioning or radio frequency wireless transmission positioning. When sound waves are used to transmit data between the sound receiving devices 12 , sound waves can be used to transmit and locate. When the radio devices transmit data to each other through wired transmission, the wired transmission positioning is used. In addition, you can also choose to use global positioning system (GPS) positioning, assisted global positioning system (AGPS) positioning, or image positioning and other positioning methods for positioning.

After the relative positions of the sound receiving devices 12 are positioned, a mark 103 can be established in the space 101 . When the sound source 18 emits a sound signal 181 , each sound receiving device 12 receives the sound signal 181 at different positions. Due to the difference in position and distance, the sound signal 181 received by each sound receiving device 12 will have a difference in intensity and phase. With the positioning of each sound receiving device 12 in the coordinate 103, the position of the sound source 18 can be located through calculation. . In addition, beamforming calculations, echo cancellation calculations, noise reduction calculations, de-reverberation calculations, and audio gain boosts can also be performed according to the correlation of sound waveforms. Computing and other calculations, so as to obtain the required optimized sound signal.

In an embodiment of the present invention, a step of providing an operation module 123 is included to execute the optimization operation and generate the optimized sound signal. Wherein, the computing module 123 can be selectively installed in one of the multiple sound receiving devices 12 .

Since most of the electronic devices have a certain calculation capability, simple calculations in the present invention can be performed by each sound receiving device respectively. For example, by comparing the sound intensity in the sound information generated by each sound collecting device 12 , each sound collecting device 12 can perform calculations respectively. However, for the positioning of each sound receiving device 12, the establishment of coordinates 103, and complex optimization calculations, etc., it needs to consume more software and hardware resources. If the calculations are performed by each sound receiving device 12, relatively more resources will be wasted. on the same operation. Therefore, in the present invention, an operation module 123 can be provided to perform various operations in a unified manner. Each sound receiving device 12 transmits various information, such as the distance between each sound receiving device 12 and the sound information generated, to the calculation module 123 for calculation, which can effectively utilize resources and reduce waste caused by repeated calculations.

In an embodiment of the present invention, the computing module 123 can also be set in a host device (not shown), and the host device can perform data transmission with each audio receiving device 12 to receive information from each audio receiving device 12 .

In an embodiment of the present invention, each sound receiving device 12 may include a speaker for playing the optimized sound signal.

In an embodiment of the present invention, each sound receiving device 12 can be respectively selected to be a speakerphone, a wired telephone, a wireless telephone, a mobile phone, a Bluetooth headset microphone (Bluetoothheadset), a wired microphone, a wireless microphone, a One of a wired speaker with a microphone and a wireless speaker with a microphone.

In an embodiment of the present invention, a step of repositioning each sound receiving device 12 is included in a set period. Because the sound receiving device 12 of the present invention may be implemented by an electronic device carried by the meeting participants, such as a mobile phone or a Bluetooth earphone microphone. When the participant moves, or when the sound receiving devices 12 are moved, the relative positions of the sound receiving devices 12 change, and each sound receiving device 12 needs to be repositioned to perform a better optimization calculation.

Please refer to FIG. 3 and FIG. 4 , which are respectively a schematic diagram of another embodiment of the distributed system and a flow chart of another embodiment of the sound effect enhancement method of the present invention. As shown in the figure, the distributed system 30 of the present embodiment includes a first sound receiving device 32 and at least one second sound receiving device 34, each sound receiving device 32,34 is respectively arranged in a space 301, each sound receiving device 32,34 Data can be transferred separately. Wherein, the first sound receiving device 32 has a computing module 323 .

In the sound effect gain method of the present embodiment, firstly, the first sound receiving device 32 and at least one second sound receiving device 34 of the distributed system 30 are respectively arranged in the space 301; then, each sound receiving device 32, 34 is used to respectively receive a sound source 18 The generated sound signal 181 is generated, and sound information corresponding to the sound signal is generated, such as step 401 and step 405 . Next, each of the second sound receiving devices 34 respectively transmits the generated sound information to the first sound receiving device 32 (step 407 ). Finally, the operation module 323 is used to perform an optimization operation on the sound information of each sound receiving device 32 , 34 to generate an optimized sound signal, as in step 409 and step 411 .

Wherein, the optimization operation can compare the sound intensity in the sound information generated by each sound receiving device 32, 34, and the optimized sound signal is the sound waveform with the highest sound intensity.

In an embodiment of the present invention, there is also a step of locating each sound receiving device 32 , 34 , such as step 403 . As described in the foregoing embodiments, using the characteristics of mutual data transmission between the sound receiving devices 32, 34, various data transmission protocols can be used to calculate the distance between each other, and the relative distance between the sound receiving devices 32, 34 can be located. Location. Wherein, the positioning of each radio device 32, 34 can be carried out by using wireless transmission positioning methods such as Bluetooth wireless transmission positioning, wireless network transmission positioning or radio frequency wireless transmission positioning, and can also utilize methods such as sound wave transmission positioning or wired transmission positioning, according to each radio device The data transmission agreement between 32 and 34 is used to complete the positioning. Or use global positioning system (GPS) positioning or assisted global positioning system (AGPS) positioning and other positioning methods for positioning.

In an embodiment of the present invention, a photographing device 36 may also be provided, which is connected to the first sound receiving device 32 to capture images of the space 301 . The obtained images are sent to the computing module 323 for image analysis and positioning. In addition to positioning the sound receiving devices 32 and 34, the position of the sound source 18 can also be located. In this embodiment, when the positions of the sound receiving devices 32 , 34 or the sound source 18 change, the positioning of the sound receiving devices 32 , 34 and the sound source 18 can be corrected in real time by using image positioning.

After the positioning of each sound receiving device 32 , 34 is completed, a landmark 303 can be established according to the relative positions of each sound receiving device 32 , 34 . According to the coordinates 303 and the positions of the sound receiving devices 32 and 34 in the coordinates 303, the calculation module 323 can locate the position of the sound source 18 through calculations, and perform beamforming calculations, echo cancellation calculations, and noise based on the correlation of sound waveforms. Operations such as signal cancellation calculation, echo cancellation calculation and audio gain calculation are used to obtain the required optimized sound signal.

In an embodiment of the present invention, each sound receiving device 32 , 34 includes a speaker 321 , 341 respectively. The sound effect gain method of the present invention also includes: the optimized sound signal obtained by computing is transmitted to each second sound receiving device 34, and the optimized sound signal is played with the speakers 321, 341 of each sound receiving device 32, 34, such as step 413 and step 413. 415.

In an embodiment of the present invention, a step of repositioning each sound receiving device 32 , 34 is included in a set period.

In one embodiment of the present invention, each sound receiving device 32, 34 can be selected to be a loudspeaker, a wired telephone, a wireless telephone, a mobile phone, a Bluetooth earphone microphone, a wired microphone, a wireless microphone, a wired speaker with a microphone, respectively. and one of the wireless speakers with microphone.

Please refer to FIG. 5 , which is a schematic diagram of another embodiment of the distributed system of the present invention. As shown in the figure, the distributed system 50 of the present invention includes a plurality of sound receiving devices 52 and a host device 54 . Wherein, each sound receiving device 52 can transmit data to each other, and the host device 54 can exchange data with each sound receiving device 52, and the host device 54 is provided with a computing module 541 for performing various calculations.

In this embodiment, since the sound receiving devices 52 can transmit data to each other, various data transmission protocols can be used to calculate the distance between the sound receiving devices 52 and to locate the sound receiving devices 52 . Each sound receiving device 52 transmits the sound information generated by receiving the sound signal 181 to the host device 54, and uses the computing module 541 to perform optimization calculations and generate an optimized sound signal.

In an embodiment of the present invention, each sound collecting device 52 includes a speaker 521 respectively. The host device 54 can transmit the optimized sound signal to each sound receiving device 52 , and play the optimized sound signal through the speaker 521 .

In an embodiment of the present invention, a camera device 36 may also be provided to connect with the host device 54 . The camera device 36 is used to capture images of the space 301, and the images are transmitted to the host device 54 for image analysis and positioning. The positions of the sound receiving devices 52 and the sound source 18 can be located in real time, so as to facilitate various optimization calculations.

Of course, the present invention can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (20)

1. an audio gain method for distributed system, is characterized in that, include:

Multiple audio signal reception device is provided, is arranged in a space respectively, between each audio signal reception device, transfer of data can be carried out respectively;

Utilize each audio signal reception device to receive a voice signal respectively, and produce the acoustic information corresponding to this voice signal;

Produced acoustic information is sent to remaining audio signal reception device by each audio signal reception device respectively; And

One optimization computing is carried out to the acoustic information of each audio signal reception device, and produces an optimization voice signal.

2. audio gain method according to claim 1, it is characterized in that, each acoustic information includes an intensity of sound and a sound waveform respectively, and this optimization computing is the size of more each intensity of sound, and this optimization voice signal gets the maximum sound waveform of intensity of sound.

3. audio gain method according to claim 1, is characterized in that, the transfer of data between each audio signal reception device is wire transmission or wireless transmission.

4. audio gain method according to claim 3, is characterized in that, this wireless transmission is Bluetooth wireless transmission, wireless network transmissions, radio frequency wireless transmission or sonic transmissions.

5. audio gain method according to claim 1, is characterized in that, the step more containing an each audio signal reception device in location.

6. audio gain method according to claim 5, 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.

7. audio gain method according to claim 6, is characterized in that, more includes the step providing a computing module, in order to perform this optimization computing, and produces this optimization voice signal.

8. audio gain method according to claim 7, is characterized in that, this computing module is arranged in a wherein audio signal reception device of the plurality of audio signal reception device.

9. audio gain method according to claim 7, is characterized in that, more includes the step providing a host apparatus, and this host apparatus can carry out transfer of data with each audio signal reception device respectively, and wherein this host apparatus is provided with this computing module.

10. audio gain method according to claim 1, is characterized in that, each audio signal reception device includes a loud speaker respectively, in order to play this optimization voice signal.

11. audio gain methods according to claim 5, 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.

12. audio gain methods according to claim 5, is characterized in that, more include the step of reorientating each audio signal reception device with a setting cycle.

13. audio gain methods 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.

The audio gain method of 14. 1 kinds of distributed systems, is characterized in that, include:

There is provided one first audio signal reception device and at least one second audio signal reception device, each audio signal reception device is arranged in a space respectively, and can carry out transfer of data respectively between each audio signal reception device, wherein the first audio signal reception device has a computing module;

Utilize each audio signal reception device to receive a voice signal respectively, and produce the acoustic information corresponding to this voice signal;

Produced acoustic information is sent to the first audio signal reception device by each second audio signal reception device respectively; And

Utilize this computing module to carry out an optimization computing to the acoustic information of each audio signal reception device, and produce an optimization voice signal.

15. audio gain methods according to claim 14, is characterized in that, more include the step of an each audio signal reception device in location.

16. audio gain methods according to claim 15, 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.

17. audio gain methods according to claim 14, is characterized in that, more include 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.

18. audio gain methods according to claim 15, 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 or an image positioning step.

19. audio gain methods according to claim 15, is characterized in that, more include the step of reorientating each audio signal reception device with a setting cycle.

20. audio gain methods according to claim 14, 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.