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Multi-channel blind source separation method and device, machine readable medium and equipment

A blind source separation and multi-channel technology, applied in the field of machine-readable media and equipment, multi-channel blind source separation, can solve problems such as limited utilization of spatial information, insufficient interference suppression, and decreased speech recognition rate

Inactive Publication Date: 2021-03-12
北京云从科技有限公司
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Problems solved by technology

However, when the noise is within the pick-up angle and within the pick-up distance, the voices or noises of other speakers will not be suppressed by the algorithm, and will interfere with the voice of the target speaker to a certain extent, resulting in a decline in speech recognition rate
Therefore, the existing technology does not fully suppress interference in some scenarios, such as banking halls, restaurants, and roads for voice interaction.
The original blind source separation is based on single-channel speech separation, which has limited utilization of spatial information

Method used

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  • Multi-channel blind source separation method and device, machine readable medium and equipment
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  • Multi-channel blind source separation method and device, machine readable medium and equipment

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Embodiment Construction

[0055] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0056]It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compon...

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Abstract

The invention discloses a multi-channel blind source separation method. The method comprises the following steps: acquiring multichannel audio data of an environment where a target sound source is located; separating the multi-channel audio data based on a trained separation model to obtain single-channel audio data; and taking the single-channel audio data as audio data of a target sound source.According to the method, the problem of voice overlapping of a plurality of speakers speaking in the same time period is solved, and the voices and contents of different speakers speaking in the sametime period can be accurately segmented.

Description

technical field [0001] The invention relates to the field of artificial intelligence, in particular to a multi-channel blind source separation method, device, machine-readable medium and equipment. Background technique [0002] The current multi-channel separation technology uses the phase difference between the microphones to suppress the sound (noise, human voice, etc.) outside the pickup angle through the beamforming algorithm. However, when the noise is within the pick-up angle and within the pick-up distance, the voices or noises of other speakers will not be suppressed by the algorithm, and will interfere with the voice of the target speaker to a certain extent, resulting in a decline in the speech recognition rate. Therefore, the existing technology does not fully suppress interference in some scenarios, such as bank business halls, restaurants, and roads for voice interaction. The original blind source separation is based on single-channel speech separation, which h...

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Application Information

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IPC IPC(8): G10L21/028G10L21/0208G10L21/0216G10L19/008G10L25/27
CPCG10L19/008G10L21/0208G10L21/0216G10L21/028G10L25/27G10L2021/02087G10L2021/02166
Inventor 高永裕
Owner 北京云从科技有限公司
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