67 lines
1.7 KiB
Python
67 lines
1.7 KiB
Python
from scipy.io import wavfile
|
|
|
|
import vita
|
|
from vita.constants import (
|
|
SourceDestination,
|
|
Effect,
|
|
FilterModel,
|
|
RetriggerStyle,
|
|
SpectralMorph,
|
|
DistortionType,
|
|
UnisonStackType,
|
|
RandomLFOStyle,
|
|
SynthFilterStyle,
|
|
WaveShape,
|
|
CompressorBandOption,
|
|
VoiceOverride,
|
|
VoicePriority,
|
|
SynthLFOSyncOption,
|
|
SynthLFOSyncType,
|
|
SyncedFrequency,
|
|
)
|
|
|
|
SAMPLE_RATE = 44_100
|
|
|
|
|
|
def test_render(bpm=120.0, note_dur=1.0, render_dur=3.0, pitch=36, velocity=0.7):
|
|
|
|
synth = vita.Synth()
|
|
# The initial preset is laoded by default.
|
|
|
|
synth.set_bpm(bpm)
|
|
|
|
assert vita.get_modulation_sources()
|
|
assert vita.get_modulation_destinations()
|
|
|
|
# Custom synthesizer settings
|
|
assert synth.connect_modulation("lfo_1", "filter_1_cutoff")
|
|
controls = synth.get_controls()
|
|
controls["modulation_1_amount"].set(1.0)
|
|
controls["filter_1_on"].set(1.0)
|
|
controls["lfo_1_tempo"].set(SyncedFrequency.k1_16)
|
|
|
|
# Render audio to numpy array shaped (2, NUM_SAMPLES)
|
|
audio = synth.render(pitch, velocity, note_dur, render_dur)
|
|
|
|
wavfile.write("generated_preset.wav", SAMPLE_RATE, audio.T)
|
|
|
|
# Dump current state to json text
|
|
json_text = synth.to_json()
|
|
preset_path = "generated_preset.vital"
|
|
with open(preset_path, "w") as f:
|
|
f.write(json_text)
|
|
|
|
# Load JSON text
|
|
with open(preset_path, "r") as f:
|
|
json_text1 = f.read()
|
|
assert synth.load_json(json_text1)
|
|
|
|
assert json_text == json_text1
|
|
|
|
# Or load directly from file:
|
|
assert synth.load_preset(preset_path)
|
|
|
|
# Load the initial preset, which also clears modulations
|
|
synth.load_init_preset()
|
|
# Or just clear modulations.
|
|
synth.clear_modulations()
|