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Reduce vibrato depth on flute, oboe, trumpet, cello

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All cut from 0.003-0.004 to 0.0015-0.002 — less wobbly in
ensemble context, more natural.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Kenneth Reitz
2026-03-27 02:08:17 -04:00
parent aa21bf0f2a
commit 83fcdb0a09
1 changed files with 4 additions and 4 deletions
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pytheory/play.py
+4 -4
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@@ -442,7 +442,7 @@ def flute_wave(hz, peak=SAMPLE_PEAK, n_samples=SAMPLE_RATE):
# Vibrato — develops after ~200ms
vib_onset = numpy.clip(t / 0.2, 0.0, 1.0)
vib = hz * 0.003 * vib_onset * numpy.sin(2 * numpy.pi * 5.0 * t)
vib = hz * 0.0015 * vib_onset * numpy.sin(2 * numpy.pi * 5.0 * t)
# Tube resonance — mostly fundamental + weak odd harmonics
wave = numpy.sin(2 * numpy.pi * (hz + vib) * t) * 0.7
@@ -481,7 +481,7 @@ def trumpet_wave(hz, peak=SAMPLE_PEAK, n_samples=SAMPLE_RATE):
# Vibrato
vib_onset = numpy.clip(t / 0.15, 0.0, 1.0)
vib = hz * 0.004 * vib_onset * numpy.sin(2 * numpy.pi * 5.5 * t)
vib = hz * 0.002 * vib_onset * numpy.sin(2 * numpy.pi * 5.5 * t)
# Lip buzz — additive with brass spectral shape
# Trumpet has strong even AND odd harmonics (unlike clarinet)
@@ -592,7 +592,7 @@ def oboe_wave(hz, peak=SAMPLE_PEAK, n_samples=SAMPLE_RATE):
rng = numpy.random.default_rng(int(hz * 100) % 2**31)
vib_onset = numpy.clip(t / 0.2, 0.0, 1.0)
vib = hz * 0.004 * vib_onset * numpy.sin(2 * numpy.pi * 5.0 * t)
vib = hz * 0.002 * vib_onset * numpy.sin(2 * numpy.pi * 5.0 * t)
wave = numpy.zeros(n_samples, dtype=numpy.float64)
n_harmonics = min(18, int((SAMPLE_RATE / 2) / hz))
@@ -668,7 +668,7 @@ def cello_wave(hz, peak=SAMPLE_PEAK, n_samples=SAMPLE_RATE):
# Delayed vibrato
vib_rate = 5.0 + rng.uniform(-0.3, 0.3)
vib_depth = hz * 0.004
vib_depth = hz * 0.002
vib_onset = numpy.clip(t / 0.25, 0.0, 1.0)
vibrato = vib_depth * vib_onset * numpy.sin(2 * numpy.pi * vib_rate * t)