WaoN is a Wave-to-Notes transcriber,
that is,
the inverse of timidity by Tuukka Toivonen (and its descendants
timidity++).
("WaoN" also has a meaning of harmony of notes or chord
in Japanese!)
My original intention is to pick up voicing of harmony
from sound of my favorite pianists.
(I have no talent to do so, but computer will :-)
But there is no functional application of this kind
on Unix platform,
as far as I know.
So I began writing this WaoN by myself.
Currently, WaoN contains three programs:
waon: transcriber (wav-to-mid converter)
pv:
phase vocoder for time-streching and pitch-shifting
WaoN's native format as sound-input is WAV,
and that as note-output is standard MIDI format 0.
If you have SoX, you can use almost all sound format
as input.
In addition, if you have timidity or some midi player
which could read standard MIDI file from stdin, you can play resultant
midi file on time.
See also Tips.
Screenshot ("WaoN" is not a GUI application but ... :-)
help
$ ./waon --help
WaoN - a Wave-to-Notes transcriber, Version 0.9
Copyright (C) 1998-2007 Kengo Ichiki <kichiki@users.sourceforge.net>
Web: http://waon.sourceforge.net/
WaoN is a Wave-to-Notes transcriber,
that is, a converter from sound file to midi file.
Usage: ./waon [option ...]
Options:
-h --help print this help.
-v, --version print version information.
OPTIONS FOR FILES
-i --input input wav file (default: stdin)
-o --output output mid file (default: 'output.mid')
options -i and -o have argument '-' as stdin/stdout
-p --patch patch file (default: no patch)
FFT OPTIONS
-n sampling number from WAV in 1 step (default: 2048)
-w --window 0 no window
1 parzen window
2 welch window
3 hanning window (default)
4 hamming window
5 blackman window
6 steeper 30-dB/octave rolloff window
READING WAV OPTIONS
-s --shift shift number from WAV in 1 step
(default: 1/4 of the value in -n option)
PHASE-VOCODER OPTIONS
-nophase don't use phase diff to improve freq estimation.
(default: use the correction)
NOTE SELECTION OPTIONS
-c --cutoff log10 of cut-off ratio to scale velocity of note
(default: -5.0)
-r --relative log10 of cut-off ratio relative to the average.
(default: no relative cutoff
= absolute cutoff with the value in -c option)
-k --peak peak threshold for note-on, which ranges [0,127]
(default: 128 = no peak-search = search only first on-event)
-t --top top note [midi #] (default: 103 = G7)
-b --bottom bottom note [midi #] (default: 28 = E1)
Here middle C (261 Hz) = C4 = midi 60. Midi # ranges [0,127].
-a --adjust adjust-pitch param, which is suggested by WaoN after analysis.
unit is half-note, that is, +1 is half-note up,
and -0.5 is quater-note down. (default: 0)
DRUM-REMOVAL OPTIONS
-psub-n number of averaging bins in one side.
that is, for n, (i-n,...,i,...,i+n) are averaged
(default: 0)
-psub-f factor to the average, where the power is modified as
p[i] = (sqrt(p[i]) - f * sqrt(ave[i]))^2
(default: 0.0)
OCTAVE-REMOVER OPTIONS
-oct factor to the octave removal, where the power is modified as
p[i] = (sqrt(p[i]) - f * sqrt(oct[i]))^2
(default: 0.0)
Tips
I think that the default setting (2048 samples for FFT, no window, etc)
is enough to judge how "WaoN" works.
Here are some more tips.
Ex.1) if you need more resolution in time,
use -s (--shift) option as follows.
Dec 29, 1998 : first release of "WaoN"
version 0.1.
Dec 13, 1998 :
catch up with the state before the accident
around Dec 5, 1996, at last.
change the name of this project to "WaoN"
and focusing on non-GUI version.
Nov 26, 1998 :
signed up geocities to have web page for this project.
but http://www.geocities.com/SiliconValley/Ridge/4180/ is removed
(I forgot the passward... Dec. 28, 2001)
delete programs by accident ;-<
Oct 1998 : start writing Gtk+ programs of GUI for 'wav2mid'.
Dec 5, 1996 : finish developing the first generation.
Dec 3, 1996 : start original program named 'wav2mid'.
