Audio signal processing method and electronic equipment
A processing method and technology for audio signals, applied in the field of multimedia, can solve the problems of poor listening effect of users, inability to control the direction of the sound field of speakers, etc., and achieve the effect of improving the effect
Active Publication Date: 2020-10-16
HISENSE VISUAL TECH CO LTD
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[0005] The embodiment of the present application provides an audio signal processing method and an electronic device to solve defects such as the inability to control the sound field direction of the loudspeaker in the prior art, resulting in poor listening effect for the user
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[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0032] First, the nouns involved in this application are explained:
[0033] NULL area: refers to the zero sound pressure area in the sound field formed by the directional speaker. A directional loudspeaker can be realized by two loudspeakers close together, for example, the simplest directional loudspeaker can be realized by using a dipole type loudspeaker....
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The embodiment of the invention provides an audio signal processing method and electronic equipment. The method comprises the steps of obtaining a first position of a right ear of a leftmost user anda second position of a left ear of a rightmost user if at least two users are detected at present, determining a first input signal of a left positive loudspeaker and a second input signal of a left negative loudspeaker according to the original left channel signal and the first position, so that an NULL region of an output sound field of the left loudspeaker points to the first position, determining a third input signal of a right positive loudspeaker and a fourth input signal of a right negative loudspeaker according to the original right channel signal and the second position, so that the NULL region of the output sound field of the right loudspeaker points to the second position, and according to the first input signal, the second input signal, the third input signal and the fourth input signal, respectively driving the left positive loudspeaker, the left negative loudspeaker, the right positive loudspeaker and the right negative loudspeaker, thereby achieving the control of the sound field NULL direction of the loudspeaker, and effectively improving the listening effect of a user.
Description
technical field [0001] The present application relates to the field of multimedia technologies, in particular to an audio signal processing method and electronic equipment. Background technique [0002] In the audio world, the practical use of directional speaker systems is one of the methods of bass reproduction. Currently, there are two directional speakers on the left and right sides of the TV equipment, which can be called the left speaker and the right speaker, which are used to play the left channel signal and the right channel signal of the TV respectively, so that the user can hear the sound of the TV. sound. [0003] However, in the prior art, since the direction of the directional speaker is forward, the user on the left side mainly hears the sound from the left speaker, and hears little sound from the right speaker. This causes the sound field heard by the user to be to the left, and the sound field heard by the user on the right is also to the right. The sound...
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IPC IPC(8): H04R1/40
CPCH04R1/403
Inventor 半场道男邢文峰
Owner HISENSE VISUAL TECH CO LTD