基于FPGA和DSP的音频采集卡的实现

The Design of Audio Data Acquisition Card Based on FPGA and DSP

本文介绍了一种基于FPGA和DSP的多通道音频采集卡的设计和实现方案,该卡能够工作在多种采样率下并可以使用DSP中不同的音频算法用于满足不同场合,并通过PC104接口将处理后的数据上传至主机。采集卡已应用在船舶航行数据纪录仪VDR中。

This article introduces the design and implement of a kind of multi-channel audio data acquisition card. The card can acquire multi-channel audio data at the same time in various sample rate mode and compress them by various encoder in DSP, then transmit the data to host via PC104 bus. The article mainly introduces the constitute of software and hardware and the specialty of the card. The article also narrates the application in voyage data recorder in brief.