circuitpython

History

synthio: Perform vibrato in pitch, not as frequency ratio

Now the vibrato 'units' are 1.0 = one octave, 1/12 = one semitone,
1/1200 = one cent. Before, the units were somewhat arbitrary and were not
perceptually "symmetrical" around the base frequency.

For vibrato_depth = 1/12 and base frequency of 440,

before: pitch from 403.33 to 476.67Hz, not corresponding to any notes
after: pitch from 415.30 to 466.16Hz, corresponding to G# and A#

2023-05-06 21:35:20 -05:00

__init__.c

synthio: add onevo_to_hz, implement midi_to_hz in terms of it

2023-05-06 21:35:19 -05:00

__init__.h

synthio: fix per-note envelope & envelope modification

2023-05-04 12:23:45 -05:00

MidiTrack.c

synthio: rename function that records error position

2023-05-04 08:45:31 -05:00

MidiTrack.h

synthio: Add MidiTrack.error_location to record errors