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Method and device for determining time delay between signals, equipment and storage medium

A technology for determining methods and signals, which is applied in the field of speech technology and can solve problems such as low efficiency

Pending Publication Date: 2020-09-01
APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present disclosure provides a method, device, device and storage medium for determining the delay between signals, so as to solve the problem of low efficiency in determining the delay between signals in the prior art

Method used

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  • Method and device for determining time delay between signals, equipment and storage medium
  • Method and device for determining time delay between signals, equipment and storage medium
  • Method and device for determining time delay between signals, equipment and storage medium

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Embodiment Construction

[0037] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0038] Figure 1A It is an application scenario diagram shown in an exemplary embodiment of the present application.

[0039] Such as Figure 1A As shown, the electronic device 11 has an audio playing function and an audio signal collecting function. For example, an electronic device is provided with a microphone for recording audio signals.

[0040] The audio sign...

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PUM

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Abstract

The invention discloses a method and device for determining time delay between signals, equipment and a storage medium, and relates to the voice technology. According to the method, the device, the equipment and the storage medium provided by the invention, the calculation amount of time delay determination can be reduced by performing down-sampling processing on a signal, so that the determination efficiency is improved. Moreover, a signal segment comprising two signal alignment positions can be estimated in the signal through the currently determined time delay; the signal segment can be subjected to the processing process again, the determination range can be gradually reduced, namely, a short signal can be processed, the accurate time delay can be obtained, and therefore, the accuracyof determination is guaranteed, and the data processing amount can be reduced.

Description

technical field [0001] The present disclosure relates to data processing technology, and in particular to voice technology. Background technique [0002] Currently, a signal recorded by an electronic device through a microphone may include a reference signal. For example, when an electronic device is playing audio, the microphone is also recording audio. In this case, the microphone will record the audio played by the electronic device. [0003] Therefore, when an electronic device processes a voice signal, it needs to perform echo cancellation processing. Specifically, the reference signal can be subtracted from the signal recorded by the microphone to obtain a clean signal. The reference signal refers to the audio signal that the electronic device is playing. [0004] In some scenarios, there is a long delay between the signal recorded by the microphone and the reference signal. Therefore, it is necessary to estimate the delay between the recorded signal and the referen...

Claims

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Application Information

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IPC IPC(8): G10L25/03G10L21/04G10L21/02G06F3/16
CPCG10L25/03G06F3/16G10L21/02G10L21/04G10L21/0224G10L21/0264G10L2021/02163G10L2021/02082G10L25/51
Inventor 杨丹青徐刚许峻华
Owner APOLLO INTELLIGENT CONNECTIVITY (BEIJING) TECH CO LTD
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