Spectrogram

Version 1.0.0.0 (1.44 MB) by Lawrence Rabiner
This exercise plots wideband and narrowband speech spectrograms for a user-designated speech file.
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Updated 11 Sep 2015

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The sound spectrogram is one of the most fundamental tools of digital speech processing. The sound spectrogram of a speech file is an image map of the sequence of short-time log (or linear) spectrums, where each spectrum is obtained from an STFT analysis of a frame of speech, and subsequent spectrums are obtained from STFT analyses of subsequent, highly overlapped in time, frames of speech. Thus the sound spectrogram is a two-dimensional (image) plot of speech spectral information (linear or log magnitude) over the duration of the speech signal. The file '3.7 Spectrograms.pdf' provides a User's Guide for this exercise.

Cite As

Lawrence Rabiner (2025). Spectrogram (https://in.mathworks.com/matlabcentral/fileexchange/52134-spectrogram), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.0.0.0

works on both R2015a and windows 10
added name of User's Guide for this exercise