2 aubiomfcc - a command line tool to compute Mel-Frequency Cepstrum Coefficients
7 aubiomfcc [[-i] source]
8 [-r rate] [-B win] [-H hop]
14 aubiomfcc compute the Mel-Frequency Cepstrum Coefficients (MFCC).
16 MFCCs are coefficients that make up for the mel-frequency spectrum, a
17 representation of the short-term power spectrum of a sound. By default, 13
18 coefficients are computed using 40 filters.
20 When started with an input source (-i/--input), the coefficients are given on
21 the console, prefixed by their timestamps in seconds.
25 This program follows the usual GNU command line syntax, with long options
26 starting with two dashes (--). A summary of options is included below.
28 -i, --input source Run analysis on this audio file. Most uncompressed and
29 compressed are supported, depending on how aubio was built.
31 -r, --samplerate rate Fetch the input source, resampled at the given
32 sampling rate. The rate should be specified in Hertz as an integer. If 0,
33 the sampling rate of the original source will be used. Defaults to 0.
35 -B, --bufsize win The size of the buffer to analyze, that is the length
36 of the window used for spectral and temporal computations. Defaults to 512.
38 -H, --hopsize hop The number of samples between two consecutive analysis.
41 -T, --timeformat format Set time format (samples, ms, seconds). Defaults to
44 -h, --help Print a short help message and exit.
46 -v, --verbose Be verbose.
50 Using the default parameters, the filter coefficients will be computed
51 according to Malcolm Slaney's Auditory Toolbox, available at the following
54 https://engineering.purdue.edu/~malcolm/interval/1998-010/ (see file mfcc.m)
68 This manual page was written by Paul Brossier <piem@aubio.org>. Permission is
69 granted to copy, distribute and/or modify this document under the terms of
70 the GNU General Public License as published by the Free Software Foundation,
71 either version 3 of the License, or (at your option) any later version.