Loudness adjustment method, device and terminal
A loudness adjustment and terminal technology, which is applied in the direction of electrical components, signal processing, and loudspeaker signal distribution, can solve the problems of cumbersome operation and low adjustment efficiency, and achieve the effect of simplifying user operation, improving adjustment efficiency, and realizing automatic control
Active Publication Date: 2020-08-25
HUAWEI TECH CO LTD
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Problems solved by technology
[0005] In order to solve the problem in the prior art that different playback devices have different playback capabilities, even if they play the same audio signal, the sound effects played are different, so that the user needs to manually adjust the volume, resulting in cumbersome operations and low adjustment efficiency. The example provides a loudness adjustment method, device and terminal
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[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0035] figure 1 is a schematic diagram of a system provided by an embodiment of the present application. Such as figure 1 As shown, the system 100 includes a terminal 110 , a playback device 120 and a sound receiving device 130 .
[0036] Terminal 110 is used to perform calculations and adjustments on audio signals.
[0037]Exemplarily, in each embodiment of the present application, the terminal 110 adjusts the amplitude of the audio signal. The greater the amplitude of the audio signal, the greater the energy corresponding to the audio signal, and the greater the loudness corresponding to the audio signal. According to the audio signal The louder the sound produced, the louder is equivalent to the volume. Among them, the amp...
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The invention discloses a loudness adjustment method and device and a terminal, and belongs to the field of loudness adjustment. The method comprises the following steps: a terminal computes first average loudness of a first audio signal, wherein the first audio signal is an audio signal currently played by playing equipment; the terminal computes second average loudness of a second audio signal,wherein the second audio signal is obtained by sound receiving equipment through collection of a sound, and the sound is obtained when the playing equipment plays the first audio signal; the terminalcomputes a loudness difference value between the first average loudness and the second average loudness; the terminal determines an adjustment factor according to the loudness difference value; and the terminal adjusts loudness of the first audio signal according to the adjustment factor. According to the method, the device and the terminal, the problem that operation is complex and adjustment efficiency is low due to the facts that playing capability of the playing equipment is different and a user needs to manually adjust volume is solved, and the effect that the first audio signal is automatically adjusted according to the sound played by the playing equipment to obtain the appropriate loudness is achieved.
Description
technical field [0001] The present application relates to the field of loudness adjustment, in particular to a loudness adjustment method, device and terminal. Background technique [0002] The volume played by the playback device is related to the amplitude of the audio signal and the playback capability of the playback device. [0003] In the prior art, the volume is adjusted by using Automatic Gain Control (English: Automatic Gain Control, referred to as: AGC) to adjust the amplitude of the audio signal. The adjustment method includes: the playback device performs a certain delay on the input audio signal, While delaying, collect the amplitude of the input audio signal according to the predetermined sampling rate, calculate the average input energy according to the amplitude of each audio signal collected, obtain the corresponding energy value according to the volume value set by the user, and compare the average input energy with the The obtained energy values are com...
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IPC IPC(8): H04R3/12
CPCH04R3/12H04R2430/00
Inventor 韩娜刘智辉
Owner HUAWEI TECH CO LTD