Display device, multichannel echo cancellation circuit and multichannel echo cancellation method

A technology for display equipment and echo cancellation, which is applied to TVs, color TVs, electrical components, etc., and can solve problems that affect echo cancellation effects, poor user experience, and affect voice interaction effects, etc.

Active Publication Date: 2021-07-09
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application provides a display device, a multi-channel echo cancellation circuit and a multi-channel echo cancellation method, which are used to solve the problem that in a display device with multiple channels, the current direct echo cancellation solution

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  • Display device, multichannel echo cancellation circuit and multichannel echo cancellation method
  • Display device, multichannel echo cancellation circuit and multichannel echo cancellation method
  • Display device, multichannel echo cancellation circuit and multichannel echo cancellation method

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Embodiment Construction

[0034] In order to make the purpose and implementation of the application clearer, the following will clearly and completely describe the exemplary implementation of the application in conjunction with the accompanying drawings in the exemplary embodiment of the application. Obviously, the described exemplary embodiment is only the present application. Claim some of the examples, not all of them.

[0035] It should be noted that the brief description of the terms in this application is only for the convenience of understanding the implementations described below, and is not intended to limit the implementations of this application. These terms are to be understood according to their ordinary and usual meaning unless otherwise stated.

[0036] The terms "first", "second", "third" and the like in the description and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean limiting specific sequ...

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Abstract

The embodiment provides a display device, a multichannel echo cancellation circuit and a multichannel echo cancellation method, the display device comprises a loudspeaker, the loudspeaker comprises a main sound channel and an auxiliary sound channel, the main sound channel plays sound according to a first audio after frequency division, and the auxiliary sound channel plays sound according to a second audio after frequency division. The first audio is obtained by executing first processing on an original audio obtained from the playing service processor, the second audio is obtained by executing second processing on the first audio, and the first processing and the second processing are different audio processing modes. And the controller performs echo cancellation on the first echo and the second echo according to the recovery reference signal corresponding to the second audio. The second audio comprises the original audio, the related information of the first processing and the related information of the second processing, so that the purpose of completely eliminating the echo of multiple sound channels can be achieved, the echo elimination effect is improved, the voice interaction effect is finally improved, and the user experience is improved.

Description

technical field [0001] The present application relates to the technical field of display devices, in particular to a display device, a multi-channel echo cancellation circuit and a multi-channel echo cancellation method. Background technique [0002] With the rapid development of speech recognition technology, the application scenarios of speech interaction are becoming more and more common. The distance of human-machine voice dialogue is not limited to the near field. The use of microphone array technology can increase the distance of human-computer interaction and realize the function of far-field speech recognition. In the far-field speech recognition scenario, while the microphone collects the target human voice, it also collects the echo caused by the audio played by the smart device. Therefore, it is necessary to perform echo cancellation on the collected audio signal. Echo cancellation is the process of eliminating the echo formed in the environment due to the audio...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L21/02H04N5/64H04N21/439G09F9/33G09F9/35G03B31/00
CPCG10L21/0208H04N5/642H04N21/4398G09F9/35G09F9/33G03B31/00G10L2021/02082
Inventor 杨香斌
Owner HISENSE VISUAL TECH CO LTD
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