||aubio User's manual
aubionotes - a command line tool to extract musical notes
aubionotes [[-i] source]
[-r rate] [-B win] [-H hop]
[-O method] [-t thres] [-d drop]
[-p method] [-u unit] [-l thres]
[-j] [-v] [-h]
aubionotes attempts to detect notes by looking for note onsets and
pitches. Consecutive events are segmented using onset detection, while a
fundamental frequency extraction algorithm determines their pitch.
When started with an input source
(-i/--input), the detected notes are printed on standard
output, in seconds and midi note number.
When started without an input source, or with the jack
option (-j/--jack), aubionotes starts in jack mode.
This program follows the usual GNU command line syntax, with long options
starting with two dashes (--). A summary of options is included below.
Available methods: default, energy, hfc, complex, phase, specdiff, kl, mkl,
- -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
- -O, --onset method
- The onset detection method to use. See ONSET METHODS below.
Defaults to 'default'.
- -t, --onset-threshold thres
- Set the threshold value for the onset peak picking. Typical values are
typically within 0.001 and 0.900. Defaults to 0.1. Lower threshold values
imply more onsets detected. Try 0.5 in case of over-detections. Defaults
- -M, --minioi value
- Set the minimum inter-onset interval, in seconds, the shortest interval
between two consecutive notes. Defaults to 0.030
- -p, --pitch method
- The pitch detection method to use. See PITCH METHODS below.
Defaults to 'default'.
- -u, --pitch-unit unit
- The unit to be used to print frequencies. Possible values include
midi, bin, cent, and Hz. Defaults to 'Hz'.
- -l, --pitch-tolerance thres
- Set the tolerance for the pitch detection algorithm. Typical values range
between 0.2 and 0.9. Pitch candidates found with a confidence less than
this threshold will not be selected. The higher the threshold, the more
confidence in the candidates. Defaults to unset.
- -s, --silence sil
- Set the silence threshold, in dB, under which the pitch will not be
detected. A value of -20.0 would eliminate most onsets but the
loudest ones. A value of -90.0 would select all onsets. Defaults to
- -d, --release-drop
- Set the release drop threshold, in dB. If the level drops more than
this amount since the last note started, the note will be turned off.
Defaults to 10.
- -T, --timeformat format
- Set time format (samples, ms, seconds). Defaults to seconds.
- -j, --jack
- Use Jack input/output. You will need a Jack connection controller to feed
aubio some signal and listen to its output.
- -h, --help
- Print a short help message and exit.
- -v, --verbose
- Be verbose.
See aubioonset(1) for details about these methods.
Available methods: default, schmitt, fcomb, mcomb, specacf, yin, yinfft,
See aubiopitch(1) for details about these methods.
aubioonset(1), aubiopitch(1), aubiotrack(1),
aubioquiet(1), aubiomfcc(1), and aubiocut(1).
This manual page was written by Paul Brossier <firstname.lastname@example.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.
Visit the GSP FreeBSD Man Page Interface.
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