A kind of audio playback method, system and device
An audio playback and audio technology, applied in stereo systems, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as limited audio surround sense
Active Publication Date: 2022-07-01
GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD +1
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[0004] However, since most of the audio sources on the car are two-channel programs provided by radios, CDs, USB players, and network streaming media players, the speakers installed on the car are actually separated by two-channel signals. That is to say, the sound source actually heard can only be equivalent to the application expansion of two-channel signals for multiple speakers. The signals played by speakers of different channels at the same time are the same, and the actual audio envelopment is limited.
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[0055] In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0056] At present, because the traditional car music playback uses one channel of speakers corresponding to one channel of audio signals, usually in order to further improve the user's listening experience, multiple speakers are set in different directions in the car, and multiple speakers are used to play at the same time. The way of sound enables users to enjoy a stereo experience.
[0057] In the prior art, the in-vehicle audio system of the vehicle decodes the mono audio or dual audio to obtain at most two channels, so the speakers installed in the car are actually separated by two-channel signals. The signals played by the different channel speakers at the same time are the same, and the actual audio surrounds the sense of su...
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Embodiments of the present invention provide an audio playback method, system, and device, which are applied to vehicles. The method includes: acquiring a two-channel audio signal, and processing the two-channel audio signal to obtain a target audio signal; the The target audio signal includes audio signals of different frequencies; the audio signals of different frequencies are played according to the preset transmission duration, wherein the total transmission duration of the audio signals of different frequencies does not exceed the hearing retention time for the audio signals to reach the human ear. By using the auditory persistence characteristics of the human ear, time division multiplexing technology is used to select audio signals, so that the audio signals obtained by each channel in a certain time belong to audio signals of different frequencies, and achieve a near-real multi-channel decoding. Presence surround effect.
Description
technical field [0001] The present invention relates to the technical field of vehicle audio, in particular to an audio playback method, an audio playback system and an audio playback device. Background technique [0002] With the continuous development of the vehicle industry, the configuration inside the vehicle also tends to be diversified; for example, the car audio system. During the driving process, the user can play the sound he wants to hear at any time through the car audio system, which improves the user's driving experience. [0003] Among them, the traditional car music playback uses one channel of speakers corresponding to one channel of audio signals, such as front left, front right, rear left, rear right, center and other channels, which can further improve the user's hearing. Experience setting up multiple speakers with different channels in different positions in the car. [0004] However, since most of the audio sources in the car are two-channel programs...
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IPC IPC(8): H04S7/00B60R16/02
CPCH04S7/30B60R16/02
Inventor 于豪
Owner GUANGZHOU CHENGXING ZHIDONG AUTOMOTIVE TECH CO LTD