Audio signal processing method, device and terminal
A technology of audio signal and high-frequency signal, which is applied in the direction of speaker distribution signal, frequency response correction, quasi-stereo system, etc., and can solve problems such as poor stereo effect
Active Publication Date: 2019-09-27
GUANGZHOU KUGOU COMP TECH CO LTD
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[0004] The embodiment of the present application provides an audio signal processing method, device and terminal, which can solve the problem of poor stereo effect when playing the left channel audio signal and the right channel audio signal through the audio playback unit
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[0116] Please refer to figure 2 , which shows a flow chart of a method for processing an audio signal provided in an exemplary embodiment of the present application, the method is applied to a terminal with an audio signal processing function, and the method is figure 1 An optional implementation of step 102 in the embodiment, the method includes:
[0117] Step 201: Input the first stereo audio signal into a high-pass filter for filtering to obtain a first high-frequency signal.
[0118] The terminal filters the first stereo audio signal into the high-pass filter to obtain a first high-frequency signal, where the first high-frequency signal is a superposition signal of the first left-channel high-frequency signal and the first right-channel high-frequency signal.
[0119] Optionally, the terminal filters the first stereo sound through a 4th-order IIR high-pass filter to obtain the first high-frequency signal.
[0120] Step 202, according to the first high-frequency signal, ...
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The present application discloses an audio signal processing method, device and terminal, which belong to the technical field of audio processing. The method includes: acquiring a first stereo audio signal; splitting the first stereo audio signal into a 5.1-channel audio signal; performing signal processing on the 5.1-channel audio signal according to speaker parameters of a three-dimensional surround 5.1 virtual speaker, and obtaining the processed The 5.1-channel audio signal; the processed 5.1-channel audio signal is synthesized into a second stereo audio signal. In the present application, the first stereo audio signal is split into a 5.1-channel audio signal, and then the 5.1-channel audio signal is processed and synthesized into a second stereo audio signal, and the second stereo audio signal is played through a two-channel audio playback unit The user can obtain the stereo effect of 5.1-channel audio, solves the problem of poor stereo effect caused by only playing two-channel audio signals in the related art, and improves the stereo effect of audio playback.
Description
technical field [0001] The present application relates to the technical field of audio processing, and in particular to an audio signal processing method, device and terminal. Background technique [0002] In related technologies, an audio playback device plays a binaural audio signal through an audio playback unit such as a binaural earphone or a loudspeaker so that a user can obtain a stereo effect. Wherein, the two-channel audio signal is an audio signal superimposed by the left channel audio signal and the right channel audio signal, the left channel part of the audio playback unit plays the left channel audio signal, and the right channel part of the audio playback unit plays the right sound channel audio signal, the user obtains a three-dimensional sense of hearing through the phase difference between the left channel audio signal played by the left channel part and the right channel audio signal played by the right channel part. [0003] In the related art, the audio...
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IPC IPC(8): H04S5/00
CPCH04S5/005H04S7/302H04S2400/03H04S2420/01H04S2420/07H04S2400/05H04S2400/07H04R3/04H04R3/12H04R5/04H04S7/307
Inventor 刘佳泽
Owner GUANGZHOU KUGOU COMP TECH CO LTD