moscil — Sends a stream of the MIDI notes.
kchn -- MIDI channel number (1-16)
knum -- note number (0-127)
kvel -- velocity (0-127)
kdur -- note duration in seconds
kpause -- pause duration after each noteoff and before new note in seconds
moscil and midion are the most powerful MIDI OUT opcodes. moscil (MIDI oscil) plays a stream of notes of kdur duration. Channel, pitch, velocity, duration and pause can be controlled at k-rate, allowing very complex algorithmically generated melodic lines. When current instrument is deactivated, the note played by current instance of moscil is forcedly truncated.
Any number of moscil opcodes can appear in the same Csound instrument, allowing a counterpoint-style polyphony within a single instrument.
Here is an example of the moscil opcode. It uses the file moscil.csd.
Example 529. Example of the moscil opcode.
See the sections Real-time Audio and Command Line Flags for more information on using command line flags.
This example generates a stream of notes for every note received on the MIDI input. It generates MIDI notes on csound's MIDI output, so be sure to connect something.
<CsoundSynthesizer> <CsOptions> ; Select audio/midi flags here according to platform ; Audio out Audio in No messages -odac -iadc -d -M0 -Q1;;;RT audio I/O with MIDI in </CsOptions> <CsInstruments> sr = 44100 kr = 4410 ksmps = 10 nchnls = 2 ; Example by Giorgio Zucco 2007 instr 1 ;Triggered by MIDI notes on channel 1 inote notnum ivel veloc kpitch = 40 kfreq = 2 kdur = .04 kpause = .1 k1 lfo kpitch, kfreq,5 ;plays a stream of notes of kdur duration on MIDI channel 1 moscil 1, inote + k1, ivel, kdur, kpause endin </CsInstruments> <CsScore> ; Dummy ftable f0 60 </CsScore> </CsoundSynthesizer>