Hi
In our application we need to capture voice data (100Hz-3.3khz) , data from a single microphone (mono).
Audio sample rate is 8kS/s We need to compress this data using ACELP , CELP. Also there should be a feature for VAD(Voice activity detection).
Other interfaces we require are 2 I2C interface.
Interface for external RAM for a minimum size of 256kByte.
An SD card interface. Our system is a battery powered one . Please suggest some processor (DSP/microcontroller) for this application.
If built in libraries are available for ACELP, CELP compression technique and for VAD then this will speed up our implementation.
