Audio correlation processing method and audio processing device

A processing method and audio processing technology, applied in the direction of instruments, sensor components, sensors, etc., can solve the problems of reducing sound transmission gain, harmful acoustic feedback, etc., and achieve the goal of improving sound transmission gain, reducing acoustic feedback, and reducing correlation Effect

Active Publication Date: 2020-12-25
GUANGZHOU LEAFUN CULTURE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it has been found in practice that when the correlation between multiple picked-up audio signals is strong, harmful acoustic feedback (such as howling) will be generated, thereby reducing the sound transmission gain

Method used

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  • Audio correlation processing method and audio processing device
  • Audio correlation processing method and audio processing device
  • Audio correlation processing method and audio processing device

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Experimental program
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Embodiment 1

[0075] see figure 1 , figure 1 It is a schematic flowchart of an audio correlation processing method disclosed in an embodiment of the present invention. Such as figure 1 As shown, the method may include the following steps.

[0076] 101. The audio processing apparatus acquires multiple audio signals under the same sound source picked up by a sound pickup device.

[0077] In the embodiment of the present invention, the audio processing device is connected to a plurality of sound pickup devices. Therefore, after the sound pickup device picks up the audio signal, the audio signal can be transmitted to the audio processing device. Wherein, the audio signal may include an initial audio signal (i.e. an original sound source) and a reverberation audio signal (i.e. a secondary sound source) replayed by a loudspeaker device. Since the original sound source and the secondary sound source come from the same sound source, therefore , there is correlation between multiple audio signal...

Embodiment 2

[0096] see figure 2 , figure 2 It is a schematic flowchart of another audio correlation processing method disclosed in the embodiment of the present invention. Such as figure 2 As shown, the audio processing device is communicatively connected to a terminal device for controlling the audio processing device, and the method may include the following steps.

[0097] 201. The audio processing apparatus acquires multiple audio signals under the same sound source picked up by a sound pickup device.

[0098] In the embodiment of the present invention, the audio processing device is connected to a plurality of sound pickup devices. Therefore, after the sound pickup device picks up the audio signal, the audio signal can be transmitted to the audio processing device. Wherein, the audio signal may include an initial audio signal (i.e. an original sound source) and a reverberation audio signal (i.e. a secondary sound source) replayed by a loudspeaker device. Since the original soun...

Embodiment 3

[0127] see image 3 , image 3 It is a schematic structural diagram of an audio processing device disclosed in an embodiment of the present invention. Such as image 3 As shown, the audio processing device may include:

[0128] The first acquisition unit 301 is configured to acquire multiple audio signals under the same sound source picked up by the sound pickup device.

[0129] In the embodiment of the present invention, the audio processing device is connected to a plurality of sound pickup devices. Therefore, after the sound pickup device picks up the audio signal, the audio signal can be transmitted to the first acquisition unit 301 . Wherein, the audio signal may include an initial audio signal (i.e. an original sound source) and a reverberation audio signal (i.e. a secondary sound source) replayed by a loudspeaker device. Since the original sound source and the secondary sound source come from the same sound source, therefore , there is correlation between multiple a...

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Abstract

The embodiment of the invention relates to the technical field of audio processing, and discloses an audio correlation processing method and an audio processing device, and the method comprises the steps: obtaining a plurality of audio signals under the same sound source, which are picked up by sound pickup equipment; performing frequency domain transformation on the audio signal to obtain a plurality of frequency domain audio signals; updating the phase of the frequency domain audio signal to obtain a plurality of processed audio signals, the phases of the plurality of processed audio signalsbeing irrelevant; performing time domain transformation on the processed audio signal to obtain a plurality of time domain audio signals; and outputting the time domain audio signal through the soundamplifying device. By implementing the embodiment of the invention, the correlation of the audio signals can be reduced, so that harmful acoustic feedback is reduced, and the sound transmission gainis improved.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio correlation processing method and an audio processing device. Background technique [0002] In order to ensure the best auditory effects for various program performances, many professional theaters have been built at home and abroad, such as theaters, opera houses and multi-purpose halls. These professional theaters usually need to adjust the reverberation time of the audio signal according to different program performances (such as opera, singing, etc.) to optimize their acoustic environment. At present, the existing adjustment method mainly performs reverberation adjustment by continuing to pick up the audio signal played back by the sound amplification device until the energy of the audio signal decays to zero, so as to increase the reverberation time of the audio signal. However, it has been found in practice that when the correlation among the mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00H04R3/02G10K15/08
CPCG10K15/08H04R3/00H04R3/02
Inventor 李志雄黄石锋黄庆杰
Owner GUANGZHOU LEAFUN CULTURE SCI & TECH
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