Band-limited PeriodicWave VCO → tube-ish saturation (single file, no libs)
Start
Stop
stopped
Waveform
Saw (band-limited)
Square (band-limited)
Triangle (band-limited)
Frequency:
110
Hz
Drive:
0.60
Higher drive = more harmonics. Alias-resistant because the source is band-limited.
Bias (asymmetry):
0.15
Adds even harmonics (tube-ish). Keep modest.
Tone (post LPF):
12000
Hz
Output level:
0.20
If silent on iPhone: check Silent switch, volume, Bluetooth routing. Must tap Start (user gesture).