Multipath data fusion device, realization method thereof and multipath audio data processing system

A data fusion and multi-channel audio technology, which is applied in digital transmission systems, transmission systems, data exchange networks, etc., can solve the problems of high requirements for audio and video processors, unsatisfactory control circuits, and poor applicability, and achieve strong expansion The effect of flexibility, reduced requirements, and low cost

Active Publication Date: 2011-05-18
SHENZHEN ZTE NETVIEW TECH
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AI Technical Summary

Problems solved by technology

[0009] figure 1 The main disadvantages of the control circuit shown include: poor synchronization, the need to add additional buffers to increase c

Method used

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  • Multipath data fusion device, realization method thereof and multipath audio data processing system
  • Multipath data fusion device, realization method thereof and multipath audio data processing system
  • Multipath data fusion device, realization method thereof and multipath audio data processing system

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Embodiment Construction

[0041] see figure 2 , the multi-channel audio data processing system proposed by the present invention includes: ADC 1 ~ADC N , multi-channel data fusion device and audio and video processor; ADC 1 、ADC N Both are used to convert multiple channels of analog audio into one channel of digital audio (as shown in the figure, ADC 1 Convert J channel analog audio to 1 channel digital audio, ADC 2 Convert K channels of analog audio to 1 channel of digital audio, ADC N Convert L channels of analog audio to 1 channel of digital audio); multi-channel data fusion device and ADC 1 ~ADC N , audio and video processors are connected separately, and further include a data buffer, an input module, a data fusion packaging module, an output module, and an input and output coordination module for receiving ADC1 ~ADC N A total of N channels of digital audio data are output and fused into a single channel of digital audio data, and then sent to the audio and video processor.

[0042] Among...

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Abstract

The invention discloses a multipath data fusion device, a realization method thereof and a multipath audio data processing system, wherein the method comprises the following steps of: in each sampling period, simultaneously receiving N paths of digital audio data and respectively distributing the digital audio data received in the first half period and the digital audio data received in the second half period to a first data buffer and a second data buffer for storage, wherein N is not less than 2; fusing and packing all digital audio data distributed to the first data buffer and the second data buffer in the current sampling period; and sequentially transmitting the fused and packed digital audio data stored in the first data buffer and the second data buffer to an audio and video processor. The invention realizes no-delay and no-loss transmission and processing of the audio data.

Description

technical field [0001] The invention belongs to the field of security monitoring, relates to FPGA / CPLD logic design, multimedia technology and audio processing technology, in particular to a multi-channel data fusion device and its realization method, and a multi-channel audio data processing system. Background technique [0002] With the gradual improvement of social security environment requirements, the demand for security monitoring equipment at home and abroad is increasing, and the cost control is becoming more and more strict, so multi-channel monitoring equipment has become a development trend. [0003] Typical security monitoring equipment will include video capture and audio capture. There are two kinds of signals collected by audio: Accompanying sound and speech. [0004] Accompanying sound is the background sound collection of the video surveillance scene, and the accompanying sound stream is continuous and uninterrupted. All audio channels must be in sync wit...

Claims

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Application Information

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IPC IPC(8): H04N5/268H04L12/56H04L12/721
Inventor 张巍蔡磊涵冯安斌关淑菊陈超
Owner SHENZHEN ZTE NETVIEW TECH
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