VS1053B编解码器的VDR分布式声音采集卡设计

为了满足未来航行数据记录仪声音采集卡分布式、低成本、低功耗和高可靠性的要求,以STM32F103为核心控制器,结合VS1053B音频编解码芯片和W5300以太网通信芯片设计了一种采用OggVorbis声音编码算法的分布式声音采集卡,给出了声音采集卡的软硬件设计。在硬件设计上,采用了独立的可加载OggVorbis声音编码算法以及内置TCP/IP协议栈的嵌入式芯片,降低了系统的功耗和软件设计的复杂性,增强了系统的灵活性和可靠性。

VDR Distributed Voice Capture Card Based on VS1053B Codec

In order to meet the future voyage data recorder voice capture cards distributed, low cost, low power consumption and high re liability requirements, the design takes STM32F103 as core controller, it combines VS1053B codec and the Ethernet interface chip W5300 to design an distributed voice capture cards which uses OggVorbisiaudio compression algorithm. System software and hardware designs are given. On hardware design, it adopts the independent loadable OggVorbis voice coding algorithm and embedded TCP/IP pro- tocol stack embedded chip. The design reduces the power consumption of the system and the complexity of software design and enhances the flexibility and reliability of the system. After voice record and playback test, the sound card recording is clear, SNR is high, and the data stream is low. It meets the requirements of voyage data recorder on cabin soundand communications voice recording.