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Scott Campbell
fa88fbb942
A third built-in instrument next to Subtractive Synth and Drum Synth. It plays one
sample across the keyboard: root note, transpose and fine tune, key tracking, key and
velocity ranges, amp ADSR with velocity sensitivity, sample start, forward or ping-pong
loops, gate or one-shot playback, 32 voices with cubic interpolation. The sample's own
rate is converted as it plays.
- dsp: `Plugin::set_sample` and the `SampleSource` trait hand an instrument shared
audio without copying; the Adsr from the synth is reused.
- model: `Insert::sample` names the session source the sampler plays.
- mix: sync hands the pool audio to the instrument when it changes, and built-in
instruments now get their parameter values applied (they always ran on defaults).
- engine: `mix.sampler_load {track?, path, params?}` decodes WAV, AIFF, FLAC, MP3, OGG
(anything file.import_audio reads) into a session source, resampled to the session
rate and saved in Audio Files with the session; `mix.sampler_clear`; and
`mix.instrument_param {track?, param, value}` for any built-in instrument.
Tests generate their audio in code; no bundled assets.