CN117319902B - Control method and control system for multi-scene loudspeaker array - Google Patents

Control method and control system for multi-scene loudspeaker array Download PDF

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Publication number
CN117319902B
CN117319902B CN202311604491.6A CN202311604491A CN117319902B CN 117319902 B CN117319902 B CN 117319902B CN 202311604491 A CN202311604491 A CN 202311604491A CN 117319902 B CN117319902 B CN 117319902B
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Prior art keywords
scene
array
usage
speaker array
parameters
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CN117319902A (en
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王理想
王明用
谢建省
黄瑞华
王文星
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Guangzhou Shengxun Electronic Technology Co ltd
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Guangzhou Shengxun Electronic Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

The application discloses a control method and a control system of a multi-scene loudspeaker array, which relate to the technical field of loudspeaker arrays and comprise the following steps: setting initial parameters of a loudspeaker array; analyzing a sound field formed by the loudspeaker array under the condition of the initial parameters to judge a use field Jing Leibie of the loudspeaker array; the initial parameters of the speaker array are adjusted according to the usage field Jing Leibie. The control system includes: the device comprises an initial parameter setting device, an analysis and judgment device and an initial parameter adjusting device. The method has the advantages that the sound field of the loudspeaker array can be automatically adapted to the change of the use scene, and the like.

Description

Control method and control system for multi-scene loudspeaker array
Technical Field
The present disclosure relates to speaker arrays, and particularly to a method and system for controlling a multi-scene speaker array.
Background
In the related conventional technical solution, when the usage scenario of the speaker array changes, for example: when the room is decorated again or the closed room is opened, and the use scene of the loudspeaker array such as a door or a window is changed, the sound field of the loudspeaker array cannot be changed adaptively due to the change of the use scene, and the loudspeaker array must be replaced to adapt to the change of the use scene of the loudspeaker array, so that a plurality of inconveniences are caused to the multi-scene use of the loudspeaker array.
Disclosure of Invention
In order to optimize the traditional scheme and enable the sound field of the loudspeaker array to be automatically adapted to the change of the use scene, the application provides a control method and a control system of the multi-scene loudspeaker array.
In one aspect, the present application provides a method for controlling a multi-scene speaker array, which may include the following steps:
setting initial parameters of a loudspeaker array;
analyzing a sound field formed by the loudspeaker array under the condition of the initial parameters to judge a use field Jing Leibie of the loudspeaker array;
the initial parameters of the speaker array are adjusted according to the usage field Jing Leibie.
The present application may be further configured in a preferred example to:
in the step of analyzing the sound field formed by the speaker array under the condition of the initial parameters to determine the usage scene category of the speaker array, the usage field Jing Leibie of the speaker array is determined by the following expression:
，
wherein,is->Minimum sound pressure change rate of the category of the usage scenario, +.>Is->Maximum sound pressure change rate of seed usage field Jing Leibie, < >>Is->Sound pressure value of each detection point->Is->The sound pressure values of the individual detection points,is->The distance between the individual detection points and the sound source point,/>is->The distance between the individual detection points and the sound source point,for the number of detection points>The number of categories for using scene categories.
By adopting the technical scheme, the use scene category of the loudspeaker array can be accurately judged.
The present application may be further configured in a preferred example to:
the control method of the multi-scene speaker array further comprises the following steps:
and suppressing side lobes of the sound field of the loudspeaker array by keeping the width of the main lobe within a preset range.
By adopting the technical scheme, the tone quality of the audio generated by the multi-scene loudspeaker array can be improved.
The present application may be further configured in a preferred example to:
the control method of the multi-scene speaker array further comprises the following steps:
and establishing a usage scene model for multiple scenes used by the loudspeaker array, and adjusting parameters of the usage scene model before the usage scene of the loudspeaker array is changed when the usage scene of the loudspeaker array is changed to obtain the usage scene model after the usage scene of the loudspeaker array is changed.
By adopting the technical scheme, the loudspeaker array can be quickly adapted to the change of the use scene.
The present application may be further configured in a preferred example to:
the adjusting method for adjusting parameters of the use scene model before the use scene of the loudspeaker array is changed is as follows:
，
wherein,for the usage scenario model parameters after the usage scenario of the speaker array is changed, +.>Use scene model before use scene change for loudspeaker array +.>Parameters->For using scene model +.>Weights of individual parameters->For using scene model +.>Variation of individual parameters->For the total number of usage scenario model parameters.
By adopting the technical scheme, the parameters of the scene model can be accurately adjusted.
The present application may be further configured in a preferred example to:
in the step of setting initial parameters of the speaker array,
the initial parameters include: the array element spacing of the speaker array, the wavelength of the audio signal generated by the speaker array, and the output power of the speaker array.
By adopting the technical scheme, the initial parameters of the loudspeaker array can be set quickly.
In another aspect, the present application provides a control system of a control method of a multi-scene speaker array, which may include:
initial parameter setting means for setting initial parameters of the speaker array;
analyzing and judging means for analyzing a sound field formed by the speaker array under the condition of the initial parameters to judge a usage field Jing Leibie of the speaker array;
initial parameter adjusting means for adjusting the initial parameters of the speaker array according to the usage field Jing Leibie.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the control system may further include:
and the sidelobe suppression device is used for suppressing the sidelobes of the loudspeaker array sound field by keeping the width of the main lobe within a preset range.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the control system may further include:
the scene modeling device is used for establishing a scene model for multiple scenes used by the loudspeaker array, and when the scene used by the loudspeaker array is changed, parameters of the scene model before the scene used by the loudspeaker array is changed are adjusted to obtain the scene model after the scene used by the loudspeaker array is changed.
Aspects of another aspect of the present application may be further configured in a preferred example to:
the usage scenario modeling apparatus may include:
a scene model parameter adjuster is used for adjusting parameters of the scene model.
In summary, compared with the prior art, the application has at least the following beneficial effects:
1. in the control method of the multi-scene speaker array, the sound field of the speaker array can be adaptively changed along with the change of the use scene, and when the use scene of the speaker array is changed, the speaker array can be automatically adapted to the change of the use scene without repositioning the speaker array, so that the use of the speaker array under the multi-scene condition when the use scene is changed is facilitated.
2. By adopting the control method of the multi-scene loudspeaker array, the use field Jing Leibie of the loudspeaker array can be accurately judged, so that the loudspeaker array can be quickly adapted to the change of the use field, and the original good sound expansion effect of the loudspeaker array is maintained while the loudspeaker array is conveniently used under the multi-scene condition.
Drawings
Fig. 1 is a flow chart of a control method of the multi-scene speaker array of the present application.
Fig. 2 is a control system block diagram of a control method of implementing a multi-scene speaker array according to the present application.
Detailed Description
The present application is described in further detail below with reference to the accompanying drawings.
Examples
As shown in fig. 1, a flowchart of a control method of a multi-scene speaker array according to the present embodiment specifically includes the following steps:
s1, setting initial parameters of a loudspeaker array;
s2, analyzing a sound field formed by the loudspeaker array under the condition of the initial parameters to judge the use field Jing Leibie of the loudspeaker array;
and S3, adjusting the initial parameters of the loudspeaker array according to the use field Jing Leibie.
In order to accurately judge the usage field Jing Leibie of the speaker array, in the step of analyzing the sound field formed by the speaker array under the condition of the initial parameters to judge the usage scene type of the speaker array, the usage field Jing Leibie of the speaker array is judged by the following expression:
，
wherein,is->Minimum sound pressure change rate of the category of the usage scenario, +.>Is->Maximum sound pressure change rate of seed usage field Jing Leibie, < >>Is->Sound pressure value of each detection point->Is->The sound pressure values of the individual detection points,is->Distance between each detection point and sound source point, +.>Is->The distance between the individual detection points and the sound source point,for the number of detection points>For using the fieldNumber of categories of scene categories.
In order to improve the tone quality of the audio generated by the multi-scene speaker array, the control method of the multi-scene speaker array specifically further comprises the following steps:
and suppressing side lobes of the sound field of the loudspeaker array by keeping the width of the main lobe within a preset range.
In order to enable the speaker array to quickly adapt to the change of the use scene, the control method of the multi-scene speaker array specifically further comprises the following steps:
and establishing a usage scene model for multiple scenes used by the loudspeaker array, and adjusting parameters of the usage scene model before the usage scene of the loudspeaker array is changed when the usage scene of the loudspeaker array is changed to obtain the usage scene model after the usage scene of the loudspeaker array is changed.
In order to accurately adjust the parameters of the usage scene model, the adjusting method for adjusting the parameters of the usage scene model before the usage scene of the speaker array is changed is as follows:
，
wherein,for the usage scenario model parameters after the usage scenario of the speaker array is changed, +.>Use scene model before use scene change for loudspeaker array +.>Parameters->For using scene model +.>Weights of individual parameters->For using scene model +.>Variation of individual parameters->For the total number of usage scenario model parameters.
In the step of setting initial parameters of the speaker array, the initial parameters include: the array element spacing of the speaker array, the wavelength of the audio signal generated by the speaker array, and the output power of the speaker array.
As shown in fig. 2, a control system block diagram of the present embodiment implementing a control method of a multi-scene speaker array, where the control system specifically includes:
initial parameter setting means for setting initial parameters of the speaker array;
analyzing and judging means for analyzing a sound field formed by the speaker array under the condition of the initial parameters to judge a usage field Jing Leibie of the speaker array;
initial parameter adjusting means for adjusting the initial parameters of the speaker array according to the usage field Jing Leibie.
The control system specifically further comprises:
and the sidelobe suppression device is used for suppressing the sidelobes of the loudspeaker array sound field by keeping the width of the main lobe within a preset range.
The control system specifically further comprises:
the scene modeling device is used for establishing a scene model for multiple scenes used by the loudspeaker array, and when the scene used by the loudspeaker array is changed, parameters of the scene model before the scene used by the loudspeaker array is changed are adjusted to obtain the scene model after the scene used by the loudspeaker array is changed.
The usage scenario modeling apparatus specifically includes:
a scene model parameter adjuster is used for adjusting parameters of the scene model.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (9)

1. A method for controlling a multi-scene speaker array, comprising the steps of:
setting initial parameters of a loudspeaker array;
analyzing a sound field formed by the loudspeaker array under the condition of the initial parameters to judge a use field Jing Leibie of the loudspeaker array;
adjusting the initial parameters of the speaker array according to the usage field Jing Leibie;
wherein in the step of analyzing the sound field formed by the speaker array under the condition of the initial parameters to determine the usage scene category of the speaker array, the usage field Jing Leibie of the speaker array is determined by the following expression:
，
wherein,is->Minimum sound pressure change rate of the category of the usage scenario, +.>Is->Maximum sound pressure change rate of seed usage field Jing Leibie, < >>Is->Sound pressure value of each detection point->Is->The sound pressure values of the individual detection points,is->Distance between each detection point and sound source point, +.>Is->The distance between the individual detection points and the sound source point,for the number of detection points>The number of categories for using scene categories.
2. The method of controlling a multi-scene speaker array according to claim 1, further comprising the steps of:
and suppressing side lobes of the sound field of the loudspeaker array by keeping the width of the main lobe within a preset range.
3. The method of controlling a multi-scene speaker array according to claim 2, further comprising the steps of:
and establishing a usage scene model for multiple scenes used by the loudspeaker array, and adjusting parameters of the usage scene model before the usage scene of the loudspeaker array is changed when the usage scene of the loudspeaker array is changed to obtain the usage scene model after the usage scene of the loudspeaker array is changed.
4. A control method of a multi-scene speaker array according to claim 3, wherein the adjustment method of parameters of the usage scene model before the usage scene of the speaker array is changed is expressed as follows:
，
wherein,for the usage scenario model parameters after the usage scenario of the speaker array is changed, +.>Use scene model before use scene change for loudspeaker array +.>Parameters->For using scene model +.>Weights of individual parameters->For using scene model +.>Variation of individual parameters->For the total number of usage scenario model parameters.
5. The method of controlling a multi-scene speaker array according to claim 4, wherein in the step of setting initial parameters of the speaker array, the initial parameters include: the array element spacing of the speaker array, the wavelength of the audio signal generated by the speaker array, and the output power of the speaker array.
6. A control system implementing the control method of the multi-scene speaker array of claim 1, comprising:
initial parameter setting means for setting initial parameters of the speaker array;
analyzing and judging means for analyzing a sound field formed by the speaker array under the condition of the initial parameters to judge a usage field Jing Leibie of the speaker array;
initial parameter adjusting means for adjusting the initial parameters of the speaker array according to the usage field Jing Leibie.
7. The control system of claim 6, further comprising:
and the sidelobe suppression device is used for suppressing the sidelobes of the loudspeaker array sound field by keeping the width of the main lobe within a preset range.
8. The control system of claim 7, further comprising:
the scene modeling device is used for establishing a scene model for multiple scenes used by the loudspeaker array, and when the scene used by the loudspeaker array is changed, parameters of the scene model before the scene used by the loudspeaker array is changed are adjusted to obtain the scene model after the scene used by the loudspeaker array is changed.
9. The control system according to claim 8, wherein the usage scenario modeling means includes:
a scene model parameter adjuster is used for adjusting parameters of the scene model.
CN202311604491.6A 2023-11-28 2023-11-28 Control method and control system for multi-scene loudspeaker array Active CN117319902B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007282053A (en) * 2006-04-10 2007-10-25 Kenwood Corp Audio play apparatus
CN116582803A (en) * 2023-06-01 2023-08-11 广州市声讯电子科技股份有限公司 Self-adaptive control method, system, storage medium and terminal for loudspeaker array

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2416314A4 (en) * 2009-04-01 2013-05-22 Azat Fuatovich Zakirov Method for reproducing an audio recording with the simulation of the acoustic characteristics of the recording conditions
WO2012003894A1 (en) * 2010-07-09 2012-01-12 Bang & Olufsen A/S Adaptive sound field control
CN104469595A (en) * 2014-10-30 2015-03-25 苏州上声电子有限公司 Multi-area sound reproduction method and device based on error model

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007282053A (en) * 2006-04-10 2007-10-25 Kenwood Corp Audio play apparatus
CN116582803A (en) * 2023-06-01 2023-08-11 广州市声讯电子科技股份有限公司 Self-adaptive control method, system, storage medium and terminal for loudspeaker array

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