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Audio mixing method and apparatus, and electronic device

An audio and sound mixing technology, which is applied in the field of audio mixing methods, devices and electronic equipment, can solve the problems of complex sound mixing process and low mixing processing efficiency, and achieve the effect of simplifying the sound mixing process and improving processing efficiency

Inactive Publication Date: 2017-06-09
LETV HLDG BEIJING CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, the embodiments of the present invention provide an audio mixing method, device and electronic equipment to solve the problems of complex sound mixing process and low mixing processing efficiency in the prior art

Method used

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  • Audio mixing method and apparatus, and electronic device
  • Audio mixing method and apparatus, and electronic device
  • Audio mixing method and apparatus, and electronic device

Examples

Experimental program
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Embodiment

[0025] This embodiment provides a method for establishing a target audio queue, which is suitable for a sound mixing device, such as a sound mixer in a broadcast, such as figure 1 shown, including the following steps:

[0026] S11: Obtain the audio data of the multi-channel audio collector. Here, the multi-channel audio data can be processed in multiple threads, that is, each channel of audio data is decoded by an independent decoding thread, and the decoded audio data of each channel is Frame by frame into the corresponding buffer (buffer) of its audio collector for caching. The audio data of each channel is processed in parallel, so that the processing of each channel of audio data remains independent of each other, the coupling between data is reduced, and the accuracy of processing results is improved.

[0027] S12: For each channel of audio data of the audio collector, respectively acquire the number of sampling points after sampling of the current frame of audio data in...

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Abstract

The invention discloses an audio mixing method and apparatus, and an electronic device. The audio mixing method comprises: audio data of multi-path audio collectors are obtained; for the audio data of each path of audio collector, the sampling point number of current-frame audio data after sampling in the corresponding audio collector are obtained; if the sampling point number is determined to be smaller than a preset sampling point number, follow-up-frame audio data are extracted from the audio collector to carry out sampling, the sampled audio data are added into the current-frame audio data to form a to-be-determined audio queue until the sampling point number in the to-be-determined audio queue is larger than or equal to the preset sampling point number, and the to-be-determined audio queue is used as a target audio queue; and mixing processing is carried out on the target audio queue obtained by all paths of audio collectors to obtain one frame of outputted mixed audio unit. Therefore, a processing step of searching for a datum sampling point number can be avoided; the mixing process can be simplified; and a problem that whole mixed audio unit can not be outputted normally because one path of audio data have a problem can be solved.

Description

technical field [0001] The invention relates to the technical field of broadcasting, in particular to an audio mixing method, device and electronic equipment. Background technique [0002] With the continuous growth of live broadcast services, there are more and more new demands, such as multi-camera switching, multi-scene switching, live broadcast on-demand switching, split-screen display, audio mixing, etc. In traditional live broadcasting, these work The completion depends on the hardware broadcasting station. This method not only has high equipment cost, is inconvenient to carry, but also is difficult to operate, so cloud broadcasting came into being. An important mode of cloud director is to synthesize multiple audio and video signals into one output, so it involves the operation of audio mixing. Audio mixing refers to the processing method of mixing and outputting multiple input audio data according to specified weights, which is an important part of audio processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/008G10L19/16
CPCG10L19/008G10L19/167
Inventor 刘辰白茂生
Owner LETV HLDG BEIJING CO LTD
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