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EFFECTS MENU 651
Universal HQ
This algorithm provides a high-quality Time Stretching/Pitch Shifting method and offers
good audio quality with almost any audio material. Especially when it comes to complex
audio recordings like orchestral recordings, this algorithm delivers high-quality results.
Stereo properties also remain intact.
The CPU load can become very high when realtime effects are applied to many
simultaneously playing objects.
True Resynthesis Timestretching (TRTS)
How does True Resynthesis Timestretching (TRTS) work?
The signal is broken down into individual components, with the amplitude and frequency
modulated oscillators - simple synthesizers -are reproduced faithfully. If these synths play
longer or shorter a Timestretching effect will be created.
What is the difference to traditional TS algorithms?
All traditional algorithms work on the basis of signal-adjusted, automated cut functions
(Copy, Cut, Fade etc).
With TRTS however you can stretch timelines when "Resampling". The typical compression
artifacts and associated non-uniformities will not occur.
Will Artifacts emerge?
The artifacts are small in comparison to conventional processes. Linear stretching
impulses, sibilants and wide band noises leads to a change in sound characteristics and
can be produce artifacts. Tonal components can be stretch perfectly.
Are beat markers used?
Yes. At recognized beat markers the stretch factor is internally set to 1, so that the beat
isn't affected.
What advantages does the algorithm offer?
Universally usable. Due to linear work practices TRTS is particularly suitable for very
small and very large Timestretch factors.
Detected transients remain true to the original, undetected transients are only slightly
changed.
It can also be used for material with complex rhythms (Jazz, Salsa etc). Here
conventional algorithms have more difficulty than in straight disco or techno beats.
Particularly well suited to orchestras.
No trimming or filtering out of signal components - thick, rich sound.
Which audio types could cause problems?
Speech, especially deep male voices
Sibilants