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PaulStretch Copyright (C) 2006-2009 Nasca Octavian Paul, Tg. Mures, Romania Released under GNU General Public License v.2 license This is an experimental program for extreme stretching the audio. Requirements: - audiofile library - libvorbis - fltk library - portaudio library - libmad (for mp3 input) - not required, but you can use the FFTW library This algorithm/program is suitable only for extreme stretching the audio. There is lot room for improvements on this algorithm like: - on sharp attacks to make the window smaller and larger on steady sounds. This avoid adding constant sidebands on steady sounds and smoothing too much the sharp sounds. - even for small window, the sidebands produced can be lowered (how?) History: 20060527(0.0.1) - First release 20060530(0.0.2) - Ogg Vorbis output support - Added a wxWidgets graphical user interface 20060812(1.000) - Removed the wxWidgets GUI and added a FLTK GUI (because FLTK GUI is smaller) - Added real-time processing/player - Added input support for Ogg Vorbis files - Improved the stretch algorithm and now the amount of stretch is unlimited (and on big stretch amounts, you don't need additional memory) - Added "Freeze" button to the player - It is possible to render to file only a selected part of the sound - Other improvements 20060905(1.024) - Added MP3 support for input - Added bypass mode (if you click play with the right mouse button) - Improved the precision of the position slider (now it shows really what's currenly playing) - Added the possibility to set the stretch amount by entering the numeric value - Added pause mode and volume control - Added post-processing of the spectrum(pitch/frequency shift, octave mixer, compress,filter,harmonics) - Command line parameter for input filename - The file can be dragged from the explorer to the file text to open it 20090424(2.0) - Added free envelopes, which allows the user to freely edit some parameters - Added stretch multiplier (with free envelope) which make the stretching variable - Added arbitrary frequency filter - Added a frequency spreader effect, which increase the bandwith of each harmonic - Added a frequency shifter which produces binaural beats (the beats frequencies are variable) - Added 32 bit WAV rendering - Other improvements and bugfixes Enjoy! :) Paul zynaddsubfx_AT_yahoo com