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Volume adjusting method and device

A volume adjustment and volume technology, applied in the direction of electrical components, amplification control, control type combination, etc., can solve the problems of low volume reduction, complex volume adjustment algorithm, noise, etc., to increase low frequency amplitude, protect users Hearing, good hearing and clear sound effect

Inactive Publication Date: 2011-03-30
BEIJING HONGJING JIEXUN NETWORK TECH
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Problems solved by technology

[0004] However, the volume adjustment method algorithm of this audio playback device is relatively complicated, and when the volume adjustment is large, the high-frequency part in the sound will cause greater damage to the user's hearing, and the excessively high-frequency sound also becomes a noise
When the volume reduction is low, some content will be difficult to hear because the low-frequency part of the sound decays too quickly

Method used

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Embodiment Construction

[0059] In order to realize that the audio playback device can adjust the volume according to the noise by using a simple algorithm, and also enable the user to better listen to the sound played by the audio playback device when the volume is too high or too low, the present invention proposes an audio adjustment device and adjustment method. Refer to the accompanying drawings for detailed description below.

[0060] figure 1 The principle diagram of the audio adjustment device is shown, as shown in the figure, the device includes: an audio signal volume detection unit 102, an audio signal frequency detection unit 103, a noise volume detection unit 101, a volume difference calculation unit 104, a storage unit 105, a volume adjustment unit unit 106 , comparison unit 107 and frequency adjustment unit 109 . in,

[0061] The audio signal volume detection unit 102 is used to detect the volume in the audio signal played by the audio playback device; the audio signal volume detecti...

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Abstract

The invention provides a volume adjusting method comprising the following steps of: A. determining the set difference value of the volume of an audio signal output by an audio playing device and the detected volume of environmental background noise during setting; B. detecting the volume of the current environmental background noise and the frequency of the audio signal; C. adjusting the current volume of the audio playing device for outputting the audio signal according to the summation of the detected volume of the current environmental background noise and the set difference value ; D. determining each grain value for adjusting each frequency of the audio signal when the adjusted volume is judged to exceed the preset volume range; and E. adjusting the frequency of the audio frequency playing device for outputting the audio signal according to the determined grain value. The algorithm is simpler and can be used for adjusting the volume more quickly. The invention also provides a volume adjusting device, which can be used for adjusting the volume more quickly.

Description

technical field [0001] The invention relates to the field of volume control, in particular to a volume adjustment method and device. Background technique [0002] When using an audio playback device in an environment with different background noises, in order to obtain an appropriate volume, the user needs to constantly manually adjust the volume. For example, the volume of audio playback is increased in an environment with high noise, and the volume of audio playback is decreased in an environment with low noise, which will cause inconvenience to the user. [0003] The Chinese patent application with the application number 200620026560.5 discloses a device that can automatically adjust the volume of the output audio signal according to the environmental noise, which discloses a method for volume adjustment, including: storing the size of the output audio set by the user, and collecting the volume from the environmental noise The microcontroller collects the noise level of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03G3/20H03G9/00
Inventor 柳玉冬严志
Owner BEIJING HONGJING JIEXUN NETWORK TECH
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