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aubiocut

NAME

aubiocut --- a command line tool to extract onsets and tempo from sound files.

SYNOPSIS

aubiocut [options] -i soundfile

DESCRIPTION

aubiocut attempts to detect onset times, the beginning of discreted sound events, or beat locations, in audio signals.

When using the --cut option, aubiocut takes an input sound file and produce small files sliced at onset locations (or silences). The slices can then be sent for example to a player, a sequencer, or a sampler.

A plotting module is available via the Gnuplot Python package.

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 filein

input sound file

-m --mode onset_detection_mode

onset detection mode [default=dual] complexdomain|hfc|phase|specdiff|energy|kl|mkl|dual

-b --beat

detect beats and output beat locations

-B --bufsize=BUFSIZE

buffer size [default=512]

-H --hopsize=HOPSIZE

overlap size [default=256]

-t --threshold=THRESHOLD

onset peak picking threshold [default=0.3]

-C --dcthreshold=DCTHRESHOLD

onset peak picking DC component [default=1.]

-s --silence=SILENCE

silence threshold [default=-70]

-M --mintol=MINIOI

minimum inter onset interval [default=0.048s]

-D --delay=DELAY

number of seconds to take back [default=system] default system delay is 3*hopsize/samplerate

-L --localmin

use local minima after peak detection

-c --cut

cut input sound file at detected labels (best used with option -L)

-d --derivate

derivate onset detection function

-S --silencecut

outputs silence locations instead of onset locations

-z --zerocross=ZEROTHRES

zero-crossing threshold for slicing [default=0.00008]

-f --function

print detection function

-q --quiet

be quiet

-h --help

Show a summary of options.

-v --verbose

make lots of noise [default]

Plotting options

When the Python interface to Gnuplot is installed, the following additional options are available.

-p --plot

draw plot

-n --no-onsets

do not plot detected onsets, only detection functions

-x --xsize=SIZE

define horizontal plot size [default=1.]

-y --ysize=SIZE

define vertical plot size [default=1.]

-O --outplot=OUTPLOT

save plot to output.{ps,eps,png,svg} instead of displaying it

BUGS

For now the program has only been tested on audio signals sampled at 44.1 kHz.

SEE ALSO

aubioonset(1) aubiotrack(1) aubionotes(1) aubiopitch(1)
 

AUTHOR

This manual page was written by Paul Brossier (piem@altern.org). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.