Highly integrated single chip solution o 16-bit DSP w/ Hardware Accelerator (Up to 40 MIPs) o 3 ADC (Analog to Digital Converter) o 2 DAC (Digital to Analog Converter) o RAM, ROM o On-chip microphone amplifier o USB 1.1 port for voice data o UART in
实现PCM和ALAW间的转换 The files in this directory comprise ANSI-C language reference implementations of the CCITT (International Telegraph and Telephone Consultative Committee) G.711, G.721 and G.723 voice compressions. They have been tested on Sun SPARCst