Like in most
module editors, music is arranged on a grid of
channels. Each supports note on and note off instructions similar to
MIDI.
Impulse Tracker modules use the
.IT file extension. New Note Actions (NNAs) is a feature that handles commands received on the same channel as another instrument which is still playing. NNAs allow the user to customize the subsequent action: • Cut: The new instrument replaces the current instrument. • Continue: The old instrument continues to play using its
ADSR curve. • Off: The old instrument begins the release section of its ADSR curve. • Fade: The old instrument fades out to 0 volume at a designated rate overriding the ADSR curve.
Impulse Tracker supports hardware MIDI channels on the
Gravis Ultrasound,
InterWave and
Sound Blaster 32 card families (provided enough
RAM is available).
IT file format The .IT file format is the format native to Impulse Tracker. It is similar to older formats such as
.MOD, but features new additions such as new note actions which allow the user to customize subsequent actions on receiving commands from the same channel as the one playing. There is also the .ITZ format, which is a renamed
zip file that contains a .IT file. == Compatible software ==