Volume adjusting method and device
A volume and volume adjustment technology, applied in the field of TV, can solve the problems of loud and small sound, which is not conducive to users to watch TV programs, etc.
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Embodiment 1
[0023] figure 1 It shows the implementation process of the method for adjusting the volume provided by the first embodiment of the present invention. The method can be applied in a device for adjusting the volume, wherein the device for adjusting the volume can be built into a digital TV, or can be built into a device capable of performing audio In the audio-video player that plays, the present invention is described with digital TV as an example, as follows in detail:
[0024] In step S101, when a channel change or a TV program content change is detected, the current volume output reference value OutputVol' is calculated according to the volume output value of the current audio after audio decoding.
[0025] In this embodiment, the device for adjusting the volume monitors whether the user switches channels or changes the content of the TV program, and if so, calculates the current volume output reference value OutputVol' according to the volume output value of the current aud...
Embodiment 2
[0043] figure 2 The implementation process of the method for adjusting the volume provided by Embodiment 2 of the present invention is shown, and the details are as follows:
[0044] In step S201, when it is detected that the user adjusts the volume and watches TV programs normally, the actual output volume value of the device is obtained, and a reference reference value OutputVol for volume adjustment is generated and stored according to the actual output volume value. The actual output volume value of the device refers to the amplitude value of the driving signal of the speaker; it may also be the signal value generated by the volume sensor detecting the output volume of the speaker.
[0045] When the device, such as a TV, leaves the factory, the reference reference value OutputVol is set with a default value in the device. When the user adjusts the volume while watching a TV program, the device generates a reference for volume adjustment according to the actual output volu...
Embodiment 3
[0055] image 3 The implementation process of the method for adjusting the volume provided by Embodiment 3 of the present invention is shown, and the details are as follows:
[0056] In step S301, when it is detected that the user is watching a TV program, the actual output volume value of the device is acquired, and a reference reference value OutputVol for volume adjustment is generated and stored according to the actual output volume value.
[0057] In step S302, the current volume output reference value OutputVol' is calculated according to the volume output value of the current audio after audio decoding.
[0058] In step S303, when a channel change or a TV program content change is detected, the current volume output reference value is detected, and it is judged whether the ratio of the current volume output reference value to the preset reference reference value for volume adjustment is within the preset Threshold range, if not within the preset threshold range, execut...
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