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Multichannel audio signal parallel collection device

An audio signal, acquisition device technology, applied in speech analysis, sound input/output, instruments, etc., can solve the problems of not supporting TDM mode, increasing the difficulty and cost of processor selection, increasing the difficulty of data synchronization, etc. The effect of fast transmission rate, high real-time requirements, cost reduction and power consumption

Active Publication Date: 2016-11-16
SOUNDAI TECH CO LTD
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AI Technical Summary

Problems solved by technology

However, although the commonly used processors on the market generally have I2S interfaces, they do not support TDM mode. This means that for multi-channel Codecs, the processor needs to have multiple 12S interfaces for docking, which undoubtedly increases the difficulty of processor selection. and cost; and this mode increases the difficulty of data synchronization between channels

Method used

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  • Multichannel audio signal parallel collection device
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Embodiment Construction

[0028] According to the basic concept of the present invention, a multi-channel audio signal parallel acquisition device is provided, including an FPGA processing unit, a plurality of audio decoding chips and a processor, wherein the plurality of audio decoding chips are electrically connected to the FPGA processing unit, It is used to collect audio signals to form audio data; the FPGA processing unit is electrically connected to the audio decoding chip and the processor, and the FPGA processing unit is used to receive the audio data of each audio decoding chip, that is, to receive multi-channel audio data, and fuse and re-encode the audio data, increase the transmission rate with the processor, and transmit the re-encoded data to the processor.

[0029] Further, the FPGA processing unit includes an I2S interface and an I2C interface, the I2S interface is electrically connected to the audio decoding chip for the transmission of audio data; the audio decoding chip includes a reg...

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Abstract

The invention discloses a multichannel audio signal parallel collection device. The collection device comprises an FPGA processing unit, multiple audio decoding chips and a processor; the multiple audio decoding chips are electrically connected to the FPGA processing unit; the FPGA processing unit is electrically connected with the audio decoding chips and the processor and used for receiving audio data of all the audio decoding chips, namely audio data of multiple channels, fusing and recoding the audio data, increasing the transmission rate with the processor and transmitting the recoded data to the processor. Compared with a traditional integrated A / D chip scheme, cost and power consumption of a whole system are greatly lowered through the collection device.

Description

technical field [0001] The invention relates to the field of speech recognition, and further relates to a multi-channel signal parallel acquisition device. Background technique [0002] With the development of speech recognition and dialogue systems, intelligent speech interaction technology has attracted more and more attention. Voice interaction is inseparable from the acquisition of audio signals. Parallel acquisition of multi-channel signals has always been the core technology of signal processing, especially in the field of array-based signal processing. [0003] Array signal processing often needs to collect multiple sensors at the same time in order to use the phase difference information between various signals to design corresponding array signal processing algorithms. In the design process of this type of acquisition system, there are often many data channels, large data throughput, fast data transmission rate, and high real-time requirements. [0004] At present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/16G10L19/008G10L19/24
CPCG06F3/162G10L19/008G10L19/24Y02D10/00
Inventor 蔡盛盛冯大航常乐苏少炜陈孝良
Owner SOUNDAI TECH CO LTD
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