语音信号处理：This package encloses a small application dedicated to speech signal processing at 8 kHz or 16 kHz. This application reads standard *.wav or *.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs.-This

This solution use amr-nb voice codec to code and decode .wav files in order to sound quality on different bitrates. IDE: VS 2010 In solution four projects 1. ConvertWavToData - convert .wav file to PCM short file. 2. AMRNBCodec - amr-nb en