Method, device and equipment for identifying multiple paths of voice as well as readable storage medium

A speech recognition and speech signal technology, applied in speech recognition, speech analysis, instruments, etc., can solve the problem of low speech recognition rate

Pending Publication Date: 2019-06-21
APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a multi-channel speech recognition method, device, equipment and readable

Method used

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  • Method, device and equipment for identifying multiple paths of voice as well as readable storage medium
  • Method, device and equipment for identifying multiple paths of voice as well as readable storage medium
  • Method, device and equipment for identifying multiple paths of voice as well as readable storage medium

Examples

Experimental program
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Example Embodiment

[0029] Example one

[0030] figure 1 It is a flowchart of a multi-channel speech recognition method provided by Embodiment 1 of the present invention. The embodiment of the present invention provides a multi-channel voice recognition method to solve the problem of low voice recognition rate of the voice recognition method on a vehicle in the prior art. The method in this embodiment is applied to a voice recognition device. The voice recognition device may be a vehicle-mounted terminal device installed on the vehicle, or a computer device that can communicate with the vehicle-mounted terminal device on the vehicle and perform voice recognition. In the embodiment, the method can also be applied to other devices, and this embodiment uses a voice recognition device as an example for schematic description.

[0031] Such as figure 1 As shown, the specific steps of the method are as follows:

[0032] Step S101: Receive audio data collected by multiple microphone arrays, and each microphon...

Example Embodiment

[0047] Example two

[0048] figure 2 This is a flowchart of a multi-channel speech recognition method provided in the second embodiment of the present invention. On the basis of the first embodiment above, in this embodiment, according to the position of each microphone array relative to the corresponding audio collection area, beamforming is performed on each channel of audio data to obtain that each channel of audio data corresponds to the corresponding audio collection area Before the audio signal, it also includes: obtaining the position of each microphone array relative to the corresponding audio collection area. Perform voice recognition on the voice signal corresponding to each audio collection area, and after obtaining the recognition result corresponding to each audio collection area, it also includes: calculating the average energy amplitude of the speech signal corresponding to each audio collection area; removing the average energy amplitude less than the expected S...

Example Embodiment

[0091] Example three

[0092] image 3 It is a schematic structural diagram of a multi-channel speech recognition device provided in Embodiment 3 of the present invention. The multi-channel voice recognition device provided in the embodiment of the present invention can execute the processing flow provided in the embodiment of the multi-channel voice recognition method. Such as image 3 As shown, the multi-channel speech recognition device 30 includes: a data acquisition module 301, a beamforming module 302, an interference suppression processing module 303, and a speech recognition module 304.

[0093] Specifically, the data acquisition module 301 is configured to receive audio data collected by a multi-channel microphone array, and each microphone array points to an audio collection area in the vehicle for collecting one channel of audio data.

[0094] The beamforming module 302 is configured to perform beamforming processing on each channel of audio data according to the position...

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Abstract

The embodiment of the invention provides a method, a device and equipment for identifying multiple paths of voice as well as a readable storage medium. The method comprises the following steps: receiving audio data collected by multiple paths of microphone arrays, carrying out wave beam formation treatment on each path of audio data to obtain audio signals corresponding to audio collection areas in each path of audio data, and weakening audio signals in other directions of the path of audio data; carrying out interference inhibition treatment on multiple paths of audio signals to obtain voicesignals corresponding to each audio collection area, reducing interference of noise signals of other audio collection areas on the path of voice signals, carrying out voice identification of the voicesignals to obtain a voice identification result corresponding to each audio collection area, and improving identification rate of the voice identification; inhibiting mutual interference among the multiple paths of voice signals when multiple people talk at the same time to obtain a voice identification result corresponding to each audio collection position, and improving the efficiency and accuracy of voice identification.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of speech recognition, and in particular to a multi-channel speech recognition method, device, equipment and readable storage medium. Background technique [0002] At present, the car machine on the vehicle is only equipped with a dual-channel microphone in the front row, including two microphones for the left and right channels, which are mainly used to collect audio data near the driving position. Recognition, to recognize recognition words such as instructions issued by the driver to the car machine. [0003] However, if the passenger sitting in the passenger seat or the rear seat of the vehicle sends out recognition words to the car, the quality of the audio data collected by the microphone is poor because the sound source is far away from the microphone, resulting in a very low speech recognition rate, especially in When many people speak the identifying language at the same t...

Claims

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Application Information

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IPC IPC(8): G10L15/02G10L15/26G10L25/03
Inventor 陈建哲彭汉迎欧阳能钧
Owner APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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