Tremolo
EffectstremoloLight CPU
Amplitude LFO — rhythmic volume wobble. Rate + Depth.
What it does
LFO-driven amplitude modulation.
Wraps daisysp::Tremolo. The LFO shape is baked at init; Rate (Hz) and Depth are audio-rate so their ports can be modulated.
Parameters
-
Rate (Hz)
rateHow many times per second the volume rises and falls, in Hz. A few Hz is the classic amplifier wobble; below 1 Hz it becomes a slow swell you feel rather than hear as a beat, and towards the top of the range it turns into a fluttering that starts to sound like a texture in its own right. Per-sample, so the port can be modulated.
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Depth
depthHow much of the signal the tremolo actually removes at the bottom of each cycle. At 0 nothing happens; at 1 the sound is cut to silence between peaks, which with a square shape is a hard gate. Middle values keep the signal present throughout and just breathe on it, which is what most amp tremolo does.
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LFO Shape
waveformShape of the LFO doing the volume shaping. Sine is the smooth, natural-sounding option; triangle is similar but with a more even sweep; saw gives a repeated fade with an abrupt reset; and square is a hard on-off chop with no transition at all, which is what you want for a stutter or gate effect. ⚠ Baked at build time, so a patch cannot switch shape while it runs.
Classic tremolo. Square shape = hard on/off chop. Rate + Depth are per-sample, so the ports can be modulated.
Ports
In
-
Audio In
input -
Rate
rate -
Depth
depth
Out
-
Audio Out
output
Audio Control
Inputs
- Audio In
- Source.
- Rate
- LFO frequency in Hz.
- Depth
- 0 = off, 1 = full.
Outputs
- Audio Out
- Modulated signal.