AUBIONOTES(1) aubio User's manual AUBIONOTES(1)NAMEaubionotes - a command line tool to extract musical notes
SYNOPSISaubionotes source
aubionotes [[-i] source]
[-r rate] [-B win] [-H hop]
[-O method] [-t thres]
[-p method] [-u unit] [-l thres]
[-s sil]
[-j] [-v] [-h]
DESCRIPTIONaubionotes 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.
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 com‐
pressed 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 256.
-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 val‐
ues 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 to 0.3.
-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 -90.0.
-j, --jack
Use Jack input/output. You will need a Jack connection con‐
troller to feed aubio some signal and listen to its output.
-h, --help
Print a short help message and exit.
-v, --verbose
Be verbose.
ONSET METHODS
Available methods: default, energy, hfc, complex, phase, specdiff, kl,
mkl, specflux.
See aubioonset(1) for details about these methods.
PITCH METHODS
Available methods: default, schmitt, fcomb, mcomb, specacf, yin,
yinfft.
See aubiopitch(1) for details about these methods.
SEE ALSOaubioonset(1), aubiopitch(1), aubiotrack(1), aubioquiet(1), aubiom‐
fcc(1), and aubiocut(1).
AUTHOR
This manual page was written by Paul Brossier <piem@aubio.org>. Permis‐
sion 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.
aubio 0.4.2 17 February 2016 AUBIONOTES(1)
