How It Works
Technical view
The current `Frequency Shifter` path also multiplies the signal by left and right sine carriers, but then runs the wet branch through a high shelf controlled by `tone` before mixing it back with the dry signal. `rate` sets the carrier frequencies, `mix` sets wet amount, and the declared `depth` control is unused, so the result is closer to a brightened ring-mod texture than a true frequency-shift algorithm.
- Chorus, Phaser, Flanger & Motion
- waveshaping / saturation
- delay processing
- oscillator / LFO modulation
- DC blocking
Signal Path
Compiled preview chain
Preview source: An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the modulation core.
- 1internal picked-string demo phrase
- 2stereo spread with a short right-channel delay
- 3left and right carrier multiplication
- 4post-wet high-shelf tone shaping
- 5dry / wet mix
- 6DC blocker
- 7output gain trim
- 8final tanh limiter
Preview source
An internally generated picked-string phrase is widened to stereo with a 19-sample right-channel delay and slight left/right shelf-EQ offsets before it hits the modulation core.
Effect core
Stereo carrier multiplication with post-wet high-shelf shaping; closer to ring modulation than true frequency shifting.
Signal path
The static waveform and the live player both reflect this compiled signal chain.
- internal picked-string demo phrase
- stereo spread with a short right-channel delay
- left and right carrier multiplication
- post-wet high-shelf tone shaping
- dry / wet mix
- DC blocker
- output gain trim
- final tanh limiter
Controls that matter
These are the currently active controls detected in the FAUST source for this effect.
- mix: Blends the untouched stereo preview source with the processed path after the modulation core.
- output_gain_db: Applies final post-effect level trim after DC blocking and before the output limiter.
- depth: Declared in the shared control set but unused in the current preview code.
- rate: Sets the frequencies of the left and right carrier oscillators used in the modulation stage.
- tone: Adjusts the high shelf applied to the wet branch after carrier multiplication.
Code-backed analysis
The generated description is tied to the active helper blocks and routing found in the current DSP.
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
Controls
Audible controls in this DSP
Blends the untouched stereo preview source with the processed path after the modulation core.
Lower settings keep more direct attack and body; higher settings push the effected motion further forward.
Applies final post-effect level trim after DC blocking and before the output limiter.
Matches loudness without changing the actual modulation or filtering structure.
Declared in the shared control set but unused in the current preview code.
Changing it currently has no effect on the sound.
Sets the frequencies of the left and right carrier oscillators used in the modulation stage.
Moves the effect from slow beating into brighter metallic sidebands.
Adjusts the high shelf applied to the wet branch after carrier multiplication.
Changes how bright and cutting the shifted sidebands feel.
Analysis
Code-derived notes
Current implementation is closer to a brightened stereo ring mod than a true frequency shifter, and the declared depth control is inactive.
Active blocks
- demo
- fx
- outputStage
- leftDemo
- rightDemo
- leftFx
- rightFx
- phraseMono
- previewShiftSamples
- leftWet
- rightWet
- pickedVoice
- proxyA
- carrierCosA
- proxyB
- carrierSinA
- carrierCosB
- carrierSinB
- fund
- pickEnv
- ampEnv
- triggerAt
- maxDelaySamples
- shiftA
- shiftB
Inactive helpers
- synthVoice
- organVoice
- bellVoice
- softsat
- quantize
- combLP
- echoOnly
- diffuser
Warnings
No current warnings are attached to this effect.
Source
- library/chorus-phaser-flanger-motion/frequency-shifter.dsp
- Output stage: DC blocker -> output gain trim -> final tanh limiter
- Library position: 120