aubio(1) - f33

1AUBIO(1)                      aubio User's manual                     AUBIO(1)
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NAME

6       aubio - a command line tool to extract information from sound files
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SYNOPSIS

9       aubio [-h] [-V] <command> ...
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COMMANDS

13       The general syntax is "aubio <command> <soundfile> [options]". The fol‐
14       lowing commands are available:
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16       onset  get onset times
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18       pitch  extract fundamental frequency
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20       beat   get locations of beats
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22       tempo  get overall tempo in bpm
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24       notes  get midi-like notes
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26       mfcc   extract mel-frequency cepstrum coefficients
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28       melbands
29              extract mel-frequency energies per band
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31       For a list of available commands, use "aubio -h". For more  info  about
32       each command, use "aubio <command> --help".
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GENERAL OPTIONS

35       These options can be used before any command has been specified.
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37       -h, --help
38              show help message and exit
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40       -V, --version
41              show version
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COMMON OPTIONS

44       The following options can be used with all commands:
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46       <source_uri>, -i <source_uri>, --input <source_uri>
47              input sound file to analyse (required)
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49       -r <freq>, --samplerate <freq>
50              samplerate  at which the file should be represented (default: 0,
51              e.g. samplerate of the input sound)
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53       -H <size>, --hopsize <size>
54              overlap size, number of samples between two consecutive analysis
55              (default: 256)
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57       -B <size>, --bufsize <size>
58              buffer size, number of samples used for each analysis, (e.g. FFT
59              length, default: 512)
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61       -h, --help
62              show help message and exit
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64       -T format, --time-format format
65              select  time  values  output  format  (samples,   ms,   seconds)
66              (default: seconds)
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68       -v, --verbose
69              be verbose (increment verbosity by 1, default: 1)
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71       -q, --quiet
72              be quiet (set verbosity to 0)
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ONSET

75       The  following  additional options can be used with the "onset" subcom‐
76       mand.
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78       -m <method>, --method <method>
79              onset novelty function  <default|energy|hfc|complex|phase|specd‐
80              iff|kl|mkl|specflux> (default: default)
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82       -t <threshold>, --threshold <threshold>
83              threshold (default: unset)
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85       -s <value>, --silence <value>
86              silence threshold, in dB (default: -70)
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88       -M <value>, --minioi <value>
89              minimum Inter-Onset Interval (default: 12ms)
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PITCH

92       The  following  additional options can be used with the "pitch" subcom‐
93       mand.
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95       -m <method>, --method <method>
96              pitch detection method  <default|yinfft|yin|mcomb|fcomb|schmitt>
97              (default: default, e.g. yinfft)
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99       -t <threshold>, --threshold <threshold>
100              tolerance (default: unset)
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102       -s <value>, --silence <value>
103              silence threshold, in dB (default: -70)
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105       The default buffer size for the beat algorithm is 2048. The default hop
106       size is 256.
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BEAT

109       The "beat"  command  accepts  all  common  options  and  no  additional
110       options.
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112       The default buffer size for the beat algorithm is 1024. The default hop
113       size is 512.
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TEMPO

116       The "tempo" command  accepts  all  common  options  and  no  additional
117       options.
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119       The default buffer size for the beat algorithm is 1024. The default hop
120       size is 512.
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NOTES

123       The following additional options can be used with the  "notes"  subcom‐
124       mand.
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126       -s <value>, --silence <value>
127              silence threshold, in dB (default: -70)
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129       -d <value>, --release-drop <value>
130              release  drop  level,  in  dB. If the level drops more than this
131              amount since the last note started, the note will be turned  off
132              (default: 10).
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MFCC

135       The  "mfcc"  command  accepts  all  common  options  and  no additional
136       options.
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MELBANDS

139       The "melbands" command accepts all common  options  and  no  additional
140       options.
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EXAMPLES

143       Extract onsets using a minimum inter-onset interval of 30ms:
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145           aubio onset /path/to/input_file -M 30ms
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147       Extract pitch with method "mcomb" and a silence threshold of -90dB:
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149           aubio pitch /path/to/input_file -m mcomb -s -90.0
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151       Extract MFCC using the standard Slaney implementation:
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153           aubio mfcc /path/to/input_file -r 44100
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AUTHOR

161       This manual page was written by Paul Brossier <piem@aubio.org>. Permis‐
162       sion is granted to copy, distribute and/or modify this  document  under
163       the  terms  of  the GNU General Public License as published by the Free
164       Software Foundation, either version 3  of  the  License,  or  (at  your
165       option) any later version.
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169aubio 0.4.9                     05 January 2021                       AUBIO(1)