ref: 9279ba044c3eb637839277829d6337e530f71a1f
dir: /doc/aubionotes.txt/
NAME
aubionotes - a command line tool to extract musical notes
SYNOPSIS
aubionotes source
aubionotes [[-i] source]
[-r rate] [-B win] [-H hop]
[-O method] [-t thres] [-d drop]
[-p method] [-u unit] [-l thres]
[-T time-format]
[-s sil]
[-j] [-v] [-h]
DESCRIPTION
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.
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
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 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 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 to 0.3.
-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 -90.0.
-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.
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,
yinfast.
See aubiopitch(1) for details about these methods.
SEE ALSO
aubioonset(1),
aubiopitch(1),
aubiotrack(1),
aubioquiet(1),
aubiomfcc(1),
and
aubiocut(1).
AUTHOR
This manual page was written by Paul Brossier <piem@aubio.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.