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iZotope Radius™ for Logic brings world class time-stretching
and pitch-shifting to Apple's Logic Pro.
Time stretch between 12.5% and 800%


Pitch shift from -36 to +36 semitones


Maintain original acoustic space and sound stage


Preserve transient attacks and timing accuracy


Apply formant correction with strength and shift control


Preserve Dolby matrix encoding


Maintain phase coherenency and preserve stereo image


Supports sampling rates up to 192 kHz
You can easily change the pitch of a single instrument, voice, or entire ensemble while preserving the timing and acoustic space of the original recording. iZotope Radius is designed to preserve natural timbres even with extreme pitch shifts.

iZotope Radius allows you to change the tempo without affecting the pitch or tone of the performance. Instrument attacks, percussive hits, and the sound stage remain untouched, even at extreme stretches.

Using an advanced hybrid method, iZotope Radius is able to preserve transients and sustained material at the same time. For example, when stretching a recording with sustained brass and pizzicato strings, iZotope Radius preserves continuity of the brass notes as well as the timing and attack characteristics of the strings.

iZotope Radius is designed for completely transparent
operation on a wide variety of source material with nearly
automatic operation. It is well suited for both industrial
studio applications and home studio use. Applications include:

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Video post production: fit soundtrack, voice over, and other audio cues to video clips


Shift pitch up or down to match a vocal or instrumental range for practice, performance, or recording


Sound design: extreme distortion-free time-stretch and pitch-shift effects


Pull-up and pull-down for film and video conversion


Slow down recordings for spoken dictation, musical transcription, or for practicing at slower tempos
Radius features two modes of operation: Mix mode and Solo mode. Mix mode is designed to work well with polyphonic material such as mixes with more than one instrument, as well as non-harmonic material such as drum loops. Solo mode works best with a single harmonic instrument such as a stringed instrument or the human voice. For finer control, use formant correction in the iZotope Radius control panel to manipulate the timbre.

iZotope Radius integrates directly into Logic's Time Machineā„¢ in Logic Pro 7.2.1 or later. Simply choose "Radius Mix" or "Radius Solo" from the "Algorithm" pull-down menu. For additional control over processing, use the iZotope Radius control panel installed in the Applications folder.

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System Requirements:
    Logic Pro 7.2.1 or later
    Mac OS X 10.4.6 or later
Apple, Mac, the Mac Logo, Time Machine, and Logic Pro are trademarks of Apple Computer Inc., registered in the U.S. and other countries.
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