Method for automatic amplification of volume

A volume and automatic technology, which is applied in the field of voice transmission, can solve the problems of howling at the receiving end of the background sound, large amplification factor, and affecting the amplification effect of normal voice streams, so as to ensure the amplification effect and improve the quality
CN100426666CActive Publication Date: 2008-10-15TENCENT TECH (SHENZHEN) CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
TENCENT TECH (SHENZHEN) CO LTD
Publication Date
2008-10-15

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Abstract

The invention relates to a method for automatically amplifying the volume, comprising: A, according to the parameter of distortion rate, calculating the maximum amplitude value which meets the preset distortion rate, then, dividing the maximum of sampling point with said maximum amplitude value to attain the maximum magnification times; B, individually multiplying each sampling point of said audio processing block with the maximum magnification times attained in the step A to attain the new amplitude value to be output. The inventive method via setting the parameter of distortion and neglecting the sampling point with super-high amplitude value calculate the maximum magnification times, utilizing which to process the volume amplifying, therefore it can confirm the amplifying effect of most audio flow and improve the audio amplifying quality; in addition, via the parameter of maximum magnification times, making calculated maximum magnification times less than said parameter of maximum magnification times, for avoiding the noise in the mute stage of amplifying process and improve the hearing quality in said process.
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Description

technical field

[0001] The invention belongs to the technical field of voice transmission, and in particular relates to a method for automatically amplifying volume during voice transmission. Background technique

[0002] Currently, voice transmission can be realized through a video conferencing system and software such as Instant Messaging (IM), so as to realize voice interaction between two places. During the voice transmission process, it often happens that the calling party lowers the volume of the local system, which causes the volume at the receiving end to be too low so that the receiving party cannot hear clearly. At this time, if the user at the receiving end manually increases the volume of the local system, it will affect the sound playback effect of other local devices. At the same time, multiple voices from multiple sending users are received, and the volumes of these multiple voices are different. If you choose to increase the local volume as a whole at this t...

Claims

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