ART Pro Audio Quadra/Fx - Two Channel Effects Processor - Manual (Page 42)

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PITCH TRANSPOSER
The Pitch Transposer (PT) algorithm can change the base-pitch of a sound.
Each PT class contains an auxiliary digital delay that feeds back into the pitch
shift. This feature can create falling or rising pitch effects. Some classes also
have dynamics sensing, which can use input level to switch the effect in and
out or trigger the Whammit! effect (see Dynamic class).
PITCH CLASSES:
Vocal
The Vocal PT is the ultimate double tracking algorithm. This class’ range of transposition is ±1.27 half steps
and its transport delay is extremely short, which is perfect for creating doubling or thickening effects. By taking
advantage of the short transport delay and setting a small amount of pitch shift with regeneration, you can
also create “barber pole” flanging effects. This class contains two pitch transposers; each of which is sent to a
separate output. Of course, when used in Discrete 4 (mono) routing, there is just one PT.
Instrument
The Instrument PT is optimized for guitar use and emulates the sound of the “classic” pitch transposer.
Bandwidth is controlled to help produce the characteristic sound.
Concert
The Concert PT is full-featured with extended bandwidth.
Gated
The Gated PT contains dynamics sensing that can fade the transposed sound in and out depending on the
Threshold setting. Threshold is set with the Special parameter and Decay sets the envelope release time.
Ambient
The Ambient PT contains two pitch transposers. Each transposed channel is sent to a separate output.
When used in Discrete 4 routing, this class produces a brighter, one-channel version of the Concert PT.
Dynamic
The Dynamic PT uses dynamics sensing to trigger the Whammit! effect, which will smoothly glide up or
down to the desired transposition amount. Special sets the Threshold for triggering the effect and Decay
sets the glide rate.