Cepstral Waterfall

This exercise introduces the concept of creating “Waterfall Plots” of frame-by-frame cepstrums.
904 Downloads
Updated 31 May 2015

View License

This MATLAB exercise introduces the concept of creating so-called “Waterfall Plots” of frame-by-frame cepstrums/log magnitude spectrums of a time-varying signal such as a speech waveform. Such plots enable tracking ofchanges in the cepstrum, especially during voiced regions, where we detect the changes in pitch period from a frameby-frame analysis of the speech signal. This program can also be used to provide a type of ’debug mode’ for displaying the signal, its log magnitude spectrum, and the resulting real cepstrum of a frame of speech with a user-selected starting sample and frame duration, on a frame-by-frame basis.

Cite As

Speech Processing (2024). Cepstral Waterfall (https://www.mathworks.com/matlabcentral/fileexchange/45421-cepstral-waterfall), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!
Version Published Release Notes
1.4.0.0

Updated to work with post-R2014b graphics

1.3.0.0

code updates; Read_Me.txt setup file; pathnew_matlab_central example

1.2.0.0

Changed spelling from Cpestral to cepstral.

1.1.0.0

Added a pdf to describe excercise in more detail

1.0.0.0