【摘要】 利用DSP硬件完成语音压缩算法是语音信号记录与处理的一个强有力手段。结合高性能单片机MSP430大容量闪存即可组成一个便携式大容量语音信号记录仪。记录仪在430单片机的控制下,利用TRUESPEECH语音压缩算法可在一片256MFLASH上完成大于14h的长时间语音信号的记录,且有良好的回放效果。设备具有时钟控制、信息添加与删除、振铃应答、自动增益控制等功能。更多还原

【Abstract】 A portable long term voice recording/playing logger composed of MSP430 single-chip computer, speech signal processing chip D6571E and flash memory is introduced. Controlled by MSP430, the logger implements more than 14 hours of voice recording by use of the high quality speech compression algorithm of D6571E chip and single flash memory, and has excellent playback effect.更多还原