Man1 - aubiomfcc.1

Table of Contents


*aubiomfcc *- a command line tool to compute Mel-Frequency Cepstrum Coefficients


  aubiomfcc source
  aubiomfcc [[-i] source]
            [-r rate] [-B win] [-H hop]
            [-T time-format]
            [-v] [-h]


aubiomfcc compute the Mel-Frequency Cepstrum Coefficients (MFCC).

MFCCs are coefficients that make up for the mel-frequency spectrum, a representation of the short-term power spectrum of a sound. By default, 13 coefficients are computed using 40 filters.

When started with an input source/* (-i–input), the coefficients are given on* the console, prefixed by their timestamps in seconds.


This program follows the usual GNU command line syntax, with long options starting with two dashes (–). A summary of options is included below.

*-i, –input */source/
Run analysis on this audio file. Most uncompressed and compressed are supported, depending on how aubio was built.
*-r, –samplerate */rate/
Fetch the input /source/*, resampled at the given* sampling /rate/*. The rate should be specified in Hertz as an integer. If 0,* the sampling /rate/* of the original source will be used. Defaults to 0.*
*-B, –bufsize */win/
The size of the buffer to analyze, that is the length of the window used for spectral and temporal computations. Defaults to 512.
*-H, –hopsize */hop/
The number of samples between two consecutive analysis. Defaults to 256.
-T, –timeformat format
Set time format (samples, ms, seconds). Defaults to seconds.
-h, –help
Print a short help message and exit.
-v, –verbose
Be verbose.


Using the default parameters, the filter coefficients will be computed according to Malcolm Slaney’s Auditory Toolbox, available at the following url: (see file mfcc.m)


aubioonset(1), aubiopitch(1), aubiotrack(1), aubionotes(1), aubioquiet(1), and aubiocut(1).


This manual page was written by Paul Brossier <>. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

Author: dt

Created: 2022-02-22 Tue 16:07