Method and device for adjusting play volume

Abstract

The invention discloses a method for adjusting play volume. The main scheme of the method is that: according to a saved reference volume decibel, acquired acoustic power of environmental noise volume, and a set adjustment proportion, a volume adjustment multiple is obtained; the acoustic power converted from the saved reference volume decibel is adjusted according to the volume adjustment multiple; and because the reference volume is the actual play volume of multimedia and shows the volume for a user to listen to the multimedia, the reference volume is adjusted, namely the play volume of themultimedia is adjusted, so that the automatic adjustment of the play volume of the multimedia under frequent changes of environmental noises is realized. The invention also discloses a device for adjusting the play volume, which uses a recording component, a storage and a microprocessor, and adjusts the acoustic power of the reference volume by collecting the environmental noise volume so as to realize the automatic adjustment of the play volume of the multimedia under the frequent changes of the environmental noises.

Description

technical field [0001] The invention relates to multimedia playing equipment, in particular to a method and device for adjusting playing volume. Background technique [0002] Human beings live in a sound environment, through which they can talk, express their thoughts and feelings, and carry out various activities. Because the human body's hearing is not linear in response to the strength of the sound signal, but a logarithmic proportional relationship. Therefore, decibels are used to express the acoustic value. The so-called decibel refers to the ratio of two identical physical quantities taking the base 10 logarithm and multiplying it by 10, namely: [0003] N=10lg(A 1 / A 0 ); [0004] N represents the decibel value, and the decibel symbol is dimensionless; where A 0 is the reference quantity, A 1 is the measurand. The ratio of the measured quantity to the reference quantity is logarithmic, and this pair of values ​​is called the "level" of the measured quantity. ...

AI Technical Summary

Problems solved by technology

When the user is using the multimedia playback function of the above-mentioned equipment, the level of environmental noise will affect the user's hearing experience. Of course, the user can directly manually adjust the volume of the multimedia playback device to compensate for the impact of environmental noise, but if the environmental noise changes quickly, Users frequently manually adjust the volume to increase the user's burden, so that users can not feel the convenience of multimedia playback equipment

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