2018.2

Core Avid Audio Plug-Ins
814
Pow-r Dither (Audio Track Effect)
POW-r Dither is a dither-generation plug-in. The POW-r Dither plug-in is an advanced type of dither
that provides optimized bit depth reduction. It is designed for final-stage critical mixdown and
mastering tasks where the highest possible fidelity is required when reducing bit depth.
The following table lists the POW-r Dither plug-in parameters.
Coarse and Fine Adjust the pitch by dragging either of the two faders, or by typing values in the Coarse and
Fine text boxes. The Coarse slider transposes in semitones (half steps); the Fine slider
transposes in cents (hundredths of a semitone).
Ratio The Ratio slider lets you set the amount of transposition (pitch change). Dragging the slider
to the right raises the pitch of the processed file, and dragging the slider to the left decreases
its pitch. Press and hold the Ctrl key (Windows) or the Command key (Macintosh) when you
drag the slider to fine-adjust.
Crossfade, Min
Pitch, Accuracy
For information on these parameters, see the parameters table in “Time Compression
Expansion (AudioSuite)” on page 820.
Time Correction Click the Time Correction check box to enable or disable time correction.
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You can deselect the Time Correction check box if you use the Create New
Master Clips feature of the AudioSuite plug-ins. However, you must select the
Time Correction check box when you apply AudioSuite plug-ins to audio clips in
the Timeline.
If the Time Correction check box is deselected, it has the effect of “permanently
varispeeding” your audio file. Like working with tape, the file’s duration is compressed or
extended according to the settings of the Coarse and Fine controls. Playback speed increases
proportionally as the sound file is transposed up in pitch and decreases proportionally as it is
transposed down in pitch, just like a tape recorder that is varispeeding.
Altering a file in this way has little detrimental effect on the fidelity of audio files, whereas
time correction can affect fidelity in a pronounced way.
Reference Pitch The Reference Pitch feature generates a sine wave tone that you can adjust to match a
selected portion of audio material, and then use as an audible reference when pitch-shifting
other audio material in your session.
To use the Reference Pitch feature:
1. Select the audio material you want to use as a pitch reference. Click the Preview button to
begin playback of the selected audio.
2. Click the Reference Pitch button to activate the reference sine wave tone.
3. Adjust the Note and Detune settings to match the reference tone to the pitch of the audio
playback. Adjust the Level setting to change the relative volume of the reference tone.
You can also switch the Reference Pitch on and off to compare pitch.
4. Select the audio material where you want to shift pitch.
5. Adjust the Coarse and Fine controls to match the pitch of the audio playback to the
reference pitch.
Parameter Description