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Audio playback control method and device, audio playback device and system

A technology for audio playback and control devices, applied in signal processing, sensor components, sensors, etc., can solve problems such as audio POP noise, audio signal mutation, etc., and achieve the effect of avoiding POP noise

Active Publication Date: 2021-08-24
TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an audio playback control method and device, audio playback equipment and system, aiming to solve the technical problem that the audio signal changes suddenly when the audio is powered off, causing the audio to produce POP noise

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  • Audio playback control method and device, audio playback device and system
  • Audio playback control method and device, audio playback device and system
  • Audio playback control method and device, audio playback device and system

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the ...

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PUM

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Abstract

The invention discloses an audio playback control method and device, audio playback equipment and system, which are applied to an audio playback system. The audio playback system includes an audio playback device and an audio output device that outputs audio signals to the audio playback device for playback. The audio playback control The method includes: detecting whether the power input end of the audio playback device is powered off, and outputting a power down detection signal when detecting a power down signal at the power input end; and controlling the audio signal output by the audio output device when receiving the power down detection signal The volume of the volume decreases gradually according to the preset value until it reaches the target volume value; when the power input terminal is powered off, it can prevent the audio playback device from generating POP noise due to power failure.

Description

technical field [0001] The present invention relates to the field of audio technology, in particular to an audio playback control method and device, audio playback equipment and system. Background technique [0002] The stereo is a kind of audio playback device, generally composed of two parts: an audio output end and an audio playback end, and an analog audio signal is output from the audio output end to the audio playback end for playback. However, in the process of the audio output terminal controlling the audio playback terminal to output audio signals, there will be a sudden power failure at the audio playback terminal. At this time, because the audio output terminal cannot know the power failure of the audio playback terminal, the audio output terminal continues to output The analog audio signal is sent to the audio playback end, so that the analog audio signal input to the audio playback end changes suddenly, resulting in POP noise at the audio playback end. Content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/01
Inventor 石勤黄建敏
Owner TCL TECH ELECTRONICS (HUIZHOU) CO LTD