Audio signal processing method and device, chip, audio system and electronic equipment
An audio signal and processing method technology, applied in electrical components, transducer circuits, sensor components and other directions, can solve the problems of sudden large and small, reducing hearing experience, etc., to improve the hearing experience, improve the amplitude fluctuations, Improve the effect of big and small sounds
Pending Publication Date: 2022-07-15
SHANGHAI AWINIC TECH CO LTD
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Problems solved by technology
If the amplitude of the input audio signal fluctuates at the dividing line between gain processing and non-gain processing, after adjusting the amplitude of the audio signal during this period, the amplitude of the obtained driving signal will fluctuate greatly, resulting in The sound produced by the audio equipment controlled by the driving signal will be obviously loud and small, which reduces the user's hearing experience
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0041] As described in the background art, if the amplitude of the input audio signal fluctuates at the boundary line where the gain processing is performed, after the amplitude of the audio signal is adjusted during this period, the amplitude of the obtained driving signal will fluctuate greatly, resulting in The sound emitted by the audio device controlled by the driving signal will have obvious fluctuations, which reduces the user'...
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The invention provides an audio signal processing method and device, a chip, an audio system and electronic equipment, and the processing method comprises the steps: carrying out first gain processing when the amplitude of an audio signal fluctuates at a first amplitude threshold value, and the amplitude of the audio signal is greater than the first amplitude threshold value with a larger value; and the second gain processing is carried out until the amplitude of the audio signal is smaller than the second amplitude threshold value of the smaller numerical value, so that the problem that the amplitude fluctuation of the driving signal obtained after the audio signal is processed is relatively large is correspondingly improved, the problem that the audio equipment sends out unstable sound is further improved, and the auditory feeling of a user is improved.
Description
technical field [0001] The present invention relates to the technical field of audio processing, and more particularly, to an audio signal processing method and device, a chip, an audio system and an electronic device. Background technique [0002] In many audio signal processing applications, medium-amplitude audio signals need to be amplified to improve loudness, and large signals or noise need to be suppressed to protect audio equipment or improve signal-to-noise ratio. Therefore, it is necessary to make real-time dynamic range control (Dynamic Range Control, DRC) according to the amplitude of the input audio signal, so as to achieve the purpose of dynamically adjusting the amplitude of the audio signal. If the amplitude of the input audio signal fluctuates at the boundary between gain processing and non-gain processing, after the amplitude of the audio signal is adjusted during this period, the amplitude of the obtained driving signal will fluctuate greatly, resulting in...
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Login to View More IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 朱马姚炜
Owner SHANGHAI AWINIC TECH CO LTD