系统以AVR单片机为控制核心,实现对人的语音的识别控制.系统采用的主控芯片为Atmel公司的ATMEGA128,语音识别功能采用ICRoute公司的单芯片LD3320.LD3320内部集成语音识别算法,无需外部FLASH,RAM资源,可以很好地完成非特定人的语音识别任务.同时该芯片内部集成了MP3播放功能,支持MPEG等格式,可实现语音提示或MP3歌曲的播放功能.由于内部含有16位A/D、D/A转换器和功放电路,所以不需要外接功放电路就可以产生清晰的声音.该系统已经预留好各种接口,具有良好的扩展性.%The system with AVR MCU as a control core, realizes the speech recognition control. The system uses the main control chip Atmel ATMEGA128. ICRoute single chip LD3320 is adopted for speech recognition, in which the speech recognition algorithm is integrated without external FLASH and RAM resources. It's a good way to complete the speech recognition task of non-specific person. MP3 player is integrated in the chip to support MPEG format. It can be used for voice prompt playback or MP3 songs. Due to internal containing 16 A/D, D/A converter and a power amplifier circuit, it can produce clear sound without any external power amplifier circuit. The system has reserved a variety of interfaces and has a good scalability.
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