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Method, device and terminal for outputting sound signals

A sound signal and sound field technology, applied in the field of signal processing, can solve problems such as weakening the sound focusing effect

Inactive Publication Date: 2015-04-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method, device and terminal for outputting sound signals to solve the technical problem existing in the prior art that the sound focusing effect is weakened due to the influence of the listener's scattering

Method used

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  • Method, device and terminal for outputting sound signals
  • Method, device and terminal for outputting sound signals
  • Method, device and terminal for outputting sound signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides a method for outputting sound signals, and the method is applied to electronic devices such as smart phones, tablet computers, notebook computers, and smart TVs.

[0043] Such as figure 1 As shown, the method includes:

[0044] S101: Determine the sound focusing filter corresponding to the listener according to the speaker array and the position of one of the N listeners in the sound field, where N is an integer greater than or equal to 2;

[0045] S102: For each listener among the N listeners, filter the sound signal corresponding to the listener through the acoustic focusing filter corresponding to the listener, and obtain N filtered sound signals in total;

[0046] S103: Output N filtered sound signals through the speaker array.

[0047] In this embodiment, the loudspeaker array may be a linear array, a matrix array, a circular array or a three-dimensional array, which is not limited in this application.

[0048] The acoustic focusing filt...

Embodiment 2

[0134] Based on the same inventive concept, this embodiment provides a device for outputting sound signals, such as Figure 5 As shown, the device specifically includes: a filter determination module 51, which is used to determine the sound focusing filter corresponding to the listener according to the speaker array and the position of one of the N listeners in the sound field, wherein , N is an integer greater than or equal to 2; the filter module 52 is used for each listener in the N listeners, through the sound focusing filter corresponding to the listener determined by the filter determination module 51, to the listener The sound signal corresponding to the voice is filtered, and N filtered sound signals are obtained, and the filtered sound signal is output to the signal output module 53; the signal output module 53 is used to receive N filtered sound signals from the filter module 52 sound signal, and output N filtered sound signals through the speaker array.

[0135] Fu...

Embodiment 3

[0143] Based on the same inventive concept, this embodiment provides a terminal, and the terminal may be a mobile phone, a tablet computer, a single-lens reflex camera, a notebook computer, and the like.

[0144] Figure 6 What is shown is a schematic structural diagram of a terminal according to an embodiment of the present invention.

[0145] Please refer to Figure 6 , the terminal includes: a processor 61, configured to determine the sound focusing filter corresponding to the listener according to the loudspeaker array and the position of one of the N listeners in the sound field, wherein N is greater than or equal to 2 is an integer; for each listener among the N listeners, the sound signal corresponding to the listener is filtered through the sound focusing filter corresponding to the listener, and a total of N filtered sound signals are obtained; the loudspeaker The array 62 is used to output N filtered sound signals.

[0146] Wherein, for the N filtered sound signal...

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Abstract

The present invention relates to the field of signal processing, and disclosed are a sound signal outputting method and device, and a terminal, which are used to solve the technical problem in the prior art that the sound focusing effect is weakened due to the scattering effect of a listener. The method comprises: according to a loudspeaker array and the position of one of N listeners in an acoustic field, determining a sound focusing filter corresponding to the listener, wherein N is an integer which is greater than or equal to 2; for each of the N listeners, filtering a sound signal corresponding to the listener through the sound focusing filter corresponding to the listeners, so as to obtain N filtered sound signals; and outputting the N filtered sound signals through the loudspeaker array.

Description

technical field [0001] The present invention relates to the field of signal processing, in particular to a method, device and terminal for outputting sound signals. Background technique [0002] With the development of communication technology, more and more attention is paid to the performance of the sound playback system of the terminal equipment. In many application scenarios, a user of a terminal device does not want others to hear the sound from his device, or listeners in different areas want to hear different sounds. [0003] At present, in order to achieve sound focusing, a speaker array composed of multiple speakers is used as the control sound source, such as figure 1 As shown in the near-field focusing model of , set a bright zone (Bright Zone) and a dark zone (Dark Zone) in the space, where the bright zone is the area where the loudspeaker array output sound energy is expected to be concentrated as much as possible, and the dark zone is the area where the loudsp...

Claims

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Application Information

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IPC IPC(8): G06F3/00G06F3/16
CPCH04R1/403H04R2203/00H04R2430/20
Inventor 卢晶张恒李子张杨张德明
Owner HUAWEI TECH CO LTD