Greetings, The project looks like it has a good beginning. For a good idea of what I'm looking for in a MIDI transformer check out the pizmidi collection of Linux VST plugins. They're a great set of MIDI filters, with a variety of useful functions. It would be very nice to have the same utilities in something other than the native VST format. I have nothing against Linux VSTs, but there aren't enough reliable (and appropriately scaled) hosts for them. http://www.thepiz.org/dl/?p=vst Here's what the pizmidi plugins do : midi16CCRouter - Changes up to 16 CCs to 16 other CCs. midi2qwerty16 - Use MIDI to trigger fake keystrokes to the focused window. midiAudioToCC - Converts audio amplitude to CC messages. midiCCModulator - Use one CC to modulate another CC (or note velocity) in various ways: add/subtract/multiply/etc, plus logic gates (AND, NAND, XNOR, etc). midiCCReset - Remembers CC values and sends them out again at selected times. midiCCStepper - Quantize CC events by value or in time. midiCCToggle - For changing momentary CC buttons into toggles. midiChannelize - Transforms everything to the selected channel. midiChs_noGUI - Channel filter/changer like energyXT1 "MIDI chs" component. midiConverter2 - Change and convert between CC, Channel Pressure, Poly Aftertouch, Program Change, Pitch Bend, NRPN/RPN, and Note On/Off messages in various ways. midiDelay - Delay notes and/or CCs with feedback. midiDuplicateBlocker - Remembers all MIDI message values it gets on each channel, and blocks any repeated values until a different value is received. midiExactDelay - Simple delay (no dry signal, no feedback) with flexible and precise delay time. midiFingered - Selectively sends standard portamento on/off CC messages to emulate "fingered portamento" for synths that don't have it. midiForceToKey - Enforces a scale, and transposes within the scale (optionally based on MIDI notes on a selected channel). midiForceToRange - Transposes notes by octave into the selected range. midiInvertNotes - "Mirrors" notes centered around the selected note. midiKeySplit - Simple keyboard splitter. midiNotchFilter - Isolate, remove, or channelize specific MIDI messages. midiNotesToCC - Converts note number and velocity to CC messages. midiNoteToggle - Notes (optionally within a selected range and/or channel) are toggled... play a note once to turn it on, play it again to turn it off. midiNRPNConverter - Converts between NRPN/RPN and CC messages, with 16 conversion slots. midiPolyphony - For spreading polyphony across MIDI channels, i.e. if you play 4 notes, each one will go to a different channel. Polyphony per channel can be set from 1 to 16 notes for more flexibility. You can also use it to convert polyphonic input to monophonic output. midiProbability - Add probability-based effects to incoming MIDI events, optionally synced to host timeline. midiProgramChange - Send Program Change and/or Bank Select messages. midiSimpleLFO - One CC LFO with some "simple" options. midiSostenuto - Like a piano sostenuto pedal, but for MIDI notes instead of piano dampers. midiStrum - Sequentially delays notes of an input chord to simulate strumming. midiStuckNoteKiller - Sends note-off messages to end hanging notes when the host stops (for hosts that don't do this themselves). midiSwing - Delays and/or offsets velocity of and applies probability to notes (and optionally also CCs) at every other step of a selected note value. midiVelocityScale - Scale/reverse/offset velocity of input notes (Note On and/or Note Off). The MIDI Transforms in many MIDI-only sequencers from the 80s and early 90s have yet to be realized in Linux MIDI software. You might also consider the various functions of the Yamaha MEP4, a hardware MIDI event processor with some valuable features. Google search for 'Yamaha MEP4' for a link to the manual. Best, dp

Le jeudi 26 août 2010 à 13:02 +0200, Philipp Überbacher a écrit : [...] [...] Right, this may appear in the future. I think, yes. Yes, definitely, this will probably be the next module i'll write. Thanks for this info, I'll look to its filters. Fixed. Fixed. Fixed (GPLv2) All done in revision 7. Thank you very much for your report! Regards, - Benoît

Le jeudi 26 août 2010 à 21:21 +0200, Philipp Überbacher a écrit : [...] Thanks for reporting the issue. I think this is fixed in revision 14.