1AUBIOMFCC(1) aubio User's manual AUBIOMFCC(1)
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6 aubiomfcc - a command line tool to compute Mel-Frequency Cepstrum Coef‐
7 ficients
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10 aubiomfcc source
11 aubiomfcc [[-i] source]
12 [-r rate] [-B win] [-H hop]
13 [-T time-format]
14 [-v] [-h]
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18 aubiomfcc compute the Mel-Frequency Cepstrum Coefficients (MFCC).
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20 MFCCs are coefficients that make up for the mel-frequency spectrum, a
21 representation of the short-term power spectrum of a sound. By default,
22 13 coefficients are computed using 40 filters.
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24 When started with an input source (-i/--input), the coefficients are
25 given on the console, prefixed by their timestamps in seconds.
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28 This program follows the usual GNU command line syntax, with long op‐
29 tions starting with two dashes (--). A summary of options is included
30 below.
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32 -i, --input source
33 Run analysis on this audio file. Most uncompressed and com‐
34 pressed are supported, depending on how aubio was built.
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36 -r, --samplerate rate
37 Fetch the input source, resampled at the given sampling rate.
38 The rate should be specified in Hertz as an integer. If 0, the
39 sampling rate of the original source will be used. Defaults to
40 0.
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42 -B, --bufsize win
43 The size of the buffer to analyze, that is the length of the
44 window used for spectral and temporal computations. Defaults to
45 512.
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47 -H, --hopsize hop
48 The number of samples between two consecutive analysis. De‐
49 faults to 256.
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51 -T, --timeformat format
52 Set time format (samples, ms, seconds). Defaults to seconds.
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54 -h, --help
55 Print a short help message and exit.
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57 -v, --verbose
58 Be verbose.
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61 Using the default parameters, the filter coefficients will be computed
62 according to Malcolm Slaney's Auditory Toolbox, available at the fol‐
63 lowing url:
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65 https://engineering.purdue.edu/~malcolm/interval/1998-010/ (see file
66 mfcc.m)
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69 aubioonset(1), aubiopitch(1), aubiotrack(1), aubionotes(1), aubio‐
70 quiet(1), and aubiocut(1).
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73 This manual page was written by Paul Brossier <piem@aubio.org>. Permis‐
74 sion is granted to copy, distribute and/or modify this document under
75 the terms of the GNU General Public License as published by the Free
76 Software Foundation, either version 3 of the License, or (at your op‐
77 tion) any later version.
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81aubio 0.4.9 20 July 2022 AUBIOMFCC(1)