A frequency response correction method, processing chip and terminal equipment
A technology of terminal equipment and correction method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc. Low distortion and the effect of reducing distortion
Active Publication Date: 2018-07-06
TENCENT TECH (SHENZHEN) CO LTD
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[0005] However, the inventors of the present invention found in the research process that the frequency response of the audio output device is not fixed, but changes dynamically. The existing way of performing frequency response correction is to use the fixed frequency response correction parameters configured at the factory, and It cannot adapt to the dynamically changing frequency response of the audio output device, which leads to the possibility of high distortion in the audio output by the audio output device after the frequency response correction of the existing technology; therefore, how to improve the frequency response correction method and reduce the audio output The degree of distortion of the audio output by the device has become a problem that those skilled in the art need to consider
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[0036] The inventors of the present invention have discovered that changes in the use of terminal equipment loaded with audio output devices will lead to changes in the frequency response of the audio output devices;
[0037] Take the terminal device as a mobile phone and the audio output device is set on the back of the mobile phone as an example. When the mobile phone is placed flat on the table and the audio output device is facing down, since the audio output device is close to the table, the audio output by the audio output device is blocked by a large area of the table. At this time, the high-frequency part of the audio attenuation is relatively large, so the high-frequency response of the frequency response is weak; and when the mobile phone is placed flat on the table and the audio output device is facing up, the frequency response of the audio output device is the same as that of the mobile phone when the table is placed flat and the audio output device is facing upwa...
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An embodiment of the invention provides a frequency response correction method, a processing chip and terminal equipment. The method comprises steps as follows: acquiring a motion parameter of the terminal equipment when detecting an audio output device of audio signal input terminal equipment; determining a frequency response correction parameter according to the motion parameter; performing frequency response correction on an audio signal input into the audio output device according to the frequency response correction parameter; controlling the audio output device to output the audio signal after frequency response correction. The purpose of reduction of the degree of distortion of audios output by the audio output device can be achieved.
Description
technical field [0001] The invention relates to the technical field of audio processing, in particular to a frequency response correction method, a processing chip and a terminal device. Background technique [0002] Frequency response, referred to as frequency response, refers to the change relationship between the sound pressure and phase of the audio output device and the frequency of the audio signal when the audio output device of the terminal equipment outputs the audio signal; the frequency response reflects the response of the audio output device to different frequencies. The response ability of the audio signal, if the frequency response characteristic is represented by the frequency response curve, the flatter the frequency response curve, the higher the response ability reflected by the frequency response, and the smaller the distortion of the audio output by the audio output device. [0003] Therefore, in order to make the distortion of the audio output by the au...
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IPC IPC(8): G06F3/16
CPCG06F3/162
Inventor 梁俊斌
Owner TENCENT TECH (SHENZHEN) CO LTD