View License

Download apps, toolboxes, and other File Exchange content using Add-On Explorer in MATLAB.

» Watch video

Highlights from
Mu Law Quantizer

Be the first to rate this file! 8 Downloads (last 30 days) File Size: 1.86 MB File ID: #45322 Version: 1.4
image thumbnail

Mu Law Quantizer



30 Jan 2014 (Updated )

Illustrates the impact of mu-law companding (compressing and expanding) and quantization of a speech

| Watch this File

File Information

Speech processing designates a team consisting of Prof. Lawrence Rabiner (Rutgers University and University of California, Santa Barbara), Prof. Ronald Schafer (Stanford University), Kirty Vedula and Siva Yedithi (Rutgers University). This exercise is one of a set of speech processing exercises that are intended to supplement the teaching material in the textbook “Theory and Applications of Digital Speech Processing” by L R Rabiner and R W Schafer.
This exercise quantizes a designated speech file using a mu-law quantizer with a bit rate of nbits per sample, where nbits is typically in the range of 2-10. For the chosen value of nbits, the program plots the quantized and the error signals along with an estimate of the signal and error power spectrum, and a histogram of the error signal values. The program also plays out the error signals in order to get a feeling for how much noise is introduced into the quantized signal at different bit rates.

Required Products MATLAB
MATLAB release MATLAB 8.0 (R2012b)
MATLAB Search Path
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
14 Feb 2014 1.1

Finds the speech directory automatically going up two levels

03 Mar 2014 1.2

bigger text boxes

18 Apr 2014 1.3

code updates; Read_Me.txt setup file; pathnew_matlab_central example

03 Jun 2015 1.4

Updated to work with post-R2014b graphics

Contact us