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Audio signal processing method, device, computing device and storage medium

An audio signal and processing method technology, applied in the field of signal processing, can solve problems such as large amount of computation, and achieve the effects of extending performance, reducing computation amount, and improving computation speed

Active Publication Date: 2022-03-22
GUANGZHOU KUGOU COMP TECH CO LTD
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  • Description
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Problems solved by technology

[0005] Embodiments of the present invention provide an audio signal processing method, device, computing device, and storage medium, which can solve the problem caused by the need to perform two inverse FFTs when separating the difference signal between the left channel and the right channel in the related art. volume problem

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  • Audio signal processing method, device, computing device and storage medium
  • Audio signal processing method, device, computing device and storage medium
  • Audio signal processing method, device, computing device and storage medium

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Embodiment Construction

[0067] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0068] In the present invention, the terms "first" and "second" are used to distinguish the same or similar items with basically the same function and function. It should be understood that "first", "second" and "nth" There are no logical or timing dependencies, nor are there restrictions on quantity or order of execution.

[0069] In the following, concepts used in the present invention are introduced.

[0070] Single instruction multiple data stream (English full name: single instruction multiple data, English abbreviation: SIMD) instruction set: It is a set of instruction sets that copy multiple operands and pack them in large registers. Taking the addition instruction as an example, after the central processing unit (full English ...

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Abstract

The invention discloses an audio signal processing method, device, computing equipment and storage medium, belonging to the field of signal processing. The present invention obtains the difference signal between the left and right channels by making the difference between the audio signals of the left and right channels and the same signal in the time domain, and can save the inverse FFT of the difference signal of the left channel in the frequency domain. process, and save the inverse FFT process of the difference signal of the right channel in the frequency domain, so the calculation amount can be greatly reduced and the calculation speed can be improved. In particular, by reducing the calculation amount of the inverse FFT twice, it can be applied to low-performance mobile terminals such as mobile phones and tablet computers, so that mobile terminals can also execute this embodiment to separate the same signals of the left and right channels in real time and difference signals, thereby greatly expanding the performance of mobile terminals.

Description

technical field [0001] The present invention relates to the field of signal processing, in particular to an audio signal processing method, device, computing device and storage medium. Background technique [0002] In the field of signal processing, it is often necessary to separate the difference signal and the same signal of the left and right channels in the time domain from the audio. For example, for a song, the difference signal of the left channel and the right channel is usually the accompaniment signal of the song, and the same signal of the left channel and the right channel is usually the vocal signal of the song, then by The difference signal and the same signal of the song are obtained, and the vocal or accompaniment can be filtered out from the song. Therefore, how to process the audio signal to obtain the difference signal and the same signal is very important. [0003] At present, when processing audio signals, the same signal in the frequency domain of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L25/48G10L21/0272H04S1/00
CPCG10L25/48G10L21/0272H04S1/00
Inventor 刘佳泽王宇飞
Owner GUANGZHOU KUGOU COMP TECH CO LTD
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