MATLAB code for quantization

To load a .wav file into MATLAB use the wavread command:

>Y=wavread(‘filename.wav’);

To quantize this signal to n bits, use the function p2_Quantize:

>Yquant=p2_Quantize(Y,n);

To save this quantized signal as a .wav with sampling frequency Fs, use the wavwrite command:

>wavwrite(Yquant,Fs,’filename.wav’);

Note: all the sound files used in this demo have a sampling frequency of 11025 Hz.

Below are links to the code for the function p2_Quantize. This function uses the class fixed, which is also provided.

p2_Quantize.m

fixed.m

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Last updated 2003