# Man1 - aubiomfcc.1

## Table of Contents

## NAME

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

## SYNOPSIS

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

## DESCRIPTION

**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.

## OPTIONS

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
should be specified in Hertz as an integer. If 0,* the sampling /rate/* of the original*rate*will be used. Defaults to 0.**source* ***-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.

## REFERENCES

Using the default parameters, the filter coefficients will be computed according to Malcolm Slaney’s Auditory Toolbox, available at the following url:

https://engineering.purdue.edu/~malcolm/interval/1998-010/ (see file mfcc.m)

## SEE ALSO

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

## AUTHOR

This manual page was written by Paul Brossier <piem@aubio.org>. 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.