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Audio processing device for mobile terminals

An audio processing and mobile terminal technology, applied in the direction of frequency/direction characteristic devices, etc., can solve the problems of poor bass performance, affecting user experience, high air pressure, etc., and achieve the effect of optimizing bass performance

Inactive Publication Date: 2014-01-01
润桐(苏州)技术服务有限公司
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AI Technical Summary

Problems solved by technology

[0004] However, when all the low-frequency components of the audio signal are output through the speaker in this method, the air pressure in the sound cavity is relatively large due to the relatively large amplitude of the speaker, and the vibration of the speaker is suppressed, resulting in poor bass performance and affecting the user experience.

Method used

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  • Audio processing device for mobile terminals
  • Audio processing device for mobile terminals

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, in the first embodiment of the present invention, the audio processing circuit of the present invention includes a low-pass filter 101 , an inverter 102 , a woofer 103 , a balanced speaker 104 and a first sound chamber 105 .

[0030] Wherein, the low-pass filter 101 carries out the low-pass filtering process to the audio signal 100, wherein the frequency less than 300 Hz can be preferably intercepted to produce a bass playback signal, and the inverter 102 performs phase inversion processing on the bass playback signal to produce a bass inversion playback signal, the woofer 103 plays the bass playback signal, the balanced speaker 104 plays the bass inverted playback signal, and the woofer 103 and the balanced speaker 104 are relatively arranged in the first sound cavity 105 .

[0031] The high-fre...

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Abstract

The invention provides an audio processing device for mobile terminals. The audio processing device comprises a bass filter, a phase inverter, a first loudspeaker, a second loudspeaker and a first sound room. The bass filter is used for carrying out filtering processing on audio signals to generate bass audio signals. The phase inverter is used for carrying out phase reversal processing on bass playing signals to generate bass phase inverse audio signals. The first loudspeaker is used for playing the bass playing signals. The second loudspeaker is used for playing the bass phase inverse audio signals. The first loudspeaker and the second loudspeaker are arranged in the first sound room oppositely. Due to the fact that the phase reversal processing and playing are carried out on the bass signals, the playing effect of the bass signals can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of audio signal processing, in particular to an audio processing device for a mobile terminal. Background technique [0002] With the development of mobile terminals, more and more functions are concentrated on the mobile terminal. Among them, sound playback is one of the very important functions. However, the sound playback on mobile terminals today mainly adopts monaural playback, which cannot meet people's growing requirements for high-quality listening enjoyment. [0003] The prior art provides a stereo surround sound effect enhancement circuit. By designing a two-stage filter circuit, the first-stage high-pass filter filters out low-frequency interference, and the second-stage filter circuit filters the difference signals of the left and right channels, and then respectively Superimposed on the main signal of the left and right channels after the primary filter for output, so as to achieve a stereo ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/22
Inventor 黄家旺
Owner 润桐(苏州)技术服务有限公司
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