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A signal separation method, device, electronic device and storage medium

A signal separation and separation technology, applied in the field of signal separation, can solve the problem of low accuracy of signal separation results

Active Publication Date: 2022-07-15
深圳如布科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a signal separation method, device, electronic equipment and storage medium, which solves the problem of low accuracy of signal separation results in the prior art

Method used

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  • A signal separation method, device, electronic device and storage medium
  • A signal separation method, device, electronic device and storage medium
  • A signal separation method, device, electronic device and storage medium

Examples

Experimental program
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Embodiment 1

[0043] figure 1 This is a flowchart of a signal separation method provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of signal separation. The method can be executed by a signal separation apparatus, and specifically includes the following steps:

[0044] S110. Determine the separation function based on the preset direction range and the collected observation signal.

[0045] Wherein, the preset direction range is preset and used to indicate in which direction range the signal is separated from the observation signal. Specifically, the preset direction range may be determined according to the relative positions of the target sound source and the microphone. Exemplarily, if the driver needs voice navigation in the vehicle, that is, the voice navigation device needs to obtain the driver's voice signal for voice recognition and other operations, but other directions in the vehicle, such as the voice signal from the co-pilot position...

Embodiment 2

[0054] figure 2 It is a flowchart of a signal separation method provided in Embodiment 2 of the present invention. On the basis of the above-mentioned embodiment, optionally, step S110, determining the separation function based on the preset direction range and the collected observation signal, is made. further optimizations such as figure 2 As shown, the method includes:

[0055] S210. Determine an auxiliary function according to the observation signal, wherein the parameters of the auxiliary function include the energy of the observation signal within and / or outside the predetermined direction range.

[0056] The auxiliary function may be a function constructed from the observed signal to solve the separation function. Optionally, the auxiliary function should be constructed to ensure the monotonic decrease of the separation function, so that when solving the separation function, due to its monotonic decrease, a stable solution can be obtained quickly. That is, the comp...

Embodiment 3

[0082] Figure 4 A schematic structural diagram of a signal separation apparatus provided in Embodiment 6 of the present invention, such as Figure 4 As shown, the device includes:

[0083] a separation function determination module 410, configured to determine a separation function based on the preset direction range and the collected observation signal;

[0084] The target sound source separation module 420 is configured to separate the target sound source signal according to the separation function and the observation signal.

[0085] Optionally, the separation function determination module 410 includes:

[0086] an auxiliary function determination unit, configured to determine an auxiliary function according to the observation signal;

[0087] a separation function determination unit, configured to calculate a separation function according to the auxiliary function;

[0088] Wherein, the parameters of the auxiliary function include the energy of the observation signal ...

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Abstract

Embodiments of the present invention disclose a signal separation method, device, electronic device, and storage medium. The method includes: determining a separation function based on a preset direction range and a collected observation signal; The target sound source signal is separated from the observation signal, and the sound source signal within a specific direction range is separated from the observation signal as the target sound source signal. Among them, since the separation function is related to the preset directional range, in the scenario where the relative positions of the target sound source and the microphone are determined, the present embodiment can separate the signals within a certain directional range to realize the separation of the target sound source signal. separation.

Description

technical field [0001] The present invention relates to the technical field of signal separation, and in particular, to a signal separation method, device, electronic device and storage medium. Background technique [0002] Blind signal processing has great application value in many fields such as biomedical signal processing, communication, image and speech signal processing. Blind Source Separation (BSS, Blind Source Separation), also known as blind signal separation, refers to how to recover only from several aliased signals (observed signals) when the theoretical model of the signal and the sound source signal cannot be accurately known. The process of separating each source signal from the process of each original signal that cannot be directly observed. [0003] In some specific scenarios, such as in a small space, the difference between the signals observed in different sensors is very small, and accordingly, the difficulty of separation using existing separation alg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0272G10L21/0308G10L15/22
CPCG10L15/22G10L21/0272G10L21/0308G10L2015/223
Inventor 杨亮雷宇
Owner 深圳如布科技有限公司