# Pulse code modulation in matlab

The following Matlab project contains the source code and Matlab examples used for pulse code modulation .
In this program, MSE, Step size, Bit rate, Quantization Noise are also calculated

The following Matlab project contains the source code and Matlab examples used for color quantization.
A true color image (24 bit image) usually contains thousands of unique colors.

The following Matlab project contains the source code and Matlab examples used for mu law quantizer.
Speech processing designates a team consisting of Prof.

The following Matlab project contains the source code and Matlab examples used for uniform quantization.
This MATLAB exercise illustrates the process of uniform quantization of a speech sample using a range of B-bits per sample, and displays the unquantized signal, the quantized signal and the error signal at the selected bit rate along with plots of signal and error power density spectrum, and the histogram of the quantization error signal.

The following Matlab project contains the source code and Matlab examples used for uniform quantization .
This code is meant to perform uniform quantization of given 1D signal

The following Matlab project contains the source code and Matlab examples used for firquest optimizes the quantization of fir coefficients. .
FIRQUEST searches for a quantized filter with optimal stopband rejection, using an unquantized filter as a starting point.

The following Matlab project contains the source code and Matlab examples used for hierarchical rgb image compression with gui.
The code performs the following operations:
1. DCT and Quantization on luma an crome components.
2. Zigzag scaning followed by encoding and decoding
3. Inverse DCT and Quantization.
To run the code:
Just run the file hierarchical.m and it will the gui.

The following Matlab project contains the source code and Matlab examples used for zigzag scanning of a matrix.
As you in the jpeg algorithm after the quantization and the rounding operations there are so many zeros in the matrix.