martinjuenke wrote:How is Metasynth‘s time stretching quality compared with PaulXStretch, iZotope RX6, zplane elastique time/pitch and others?
One day I stretched the same tone+noise sample with those you listed plus several others, and every timestretch sounds quite different!
Metasynth has three stretchers, (Grain, Stretch and Pitch & Time) and has a more musical emphasis. Here's just one paragraph from the long descriptions the Metasynth Manual has about each one:Grain
Imagine being able to take a tape recording, slice it up into arbitrarily small bits then rearrange them. That’s Grain! Grain is a granular synthesis effect that displaces and reorders time slices from the source sample. This powerful effect is capable of creating mind-boggling new sounds. Some experimentation is needed to find the settings that work best for a particular source sound or effect, but once found the results are worth the invested time.Stretch
Stretch changes the duration of a sound without changing its pitch. Besides changing the sound’s duration, this effect can create interesting stuttering or resonances depending on how you set the parameters. Stretch uses a less CPU-intensive method of time stretching than the Pitch & Time effect. Interesting performances can be created by changing the parameters in real-time. If you are trying to zero in on a realistic effect setting, you should periodically stop and restart the preview as feedback/delay effects can be introduced during real-time manipulation.Pitch & Time
High-quality Pitch and Time shift effect that allows you to change the pitch and duration of a sound independently. If there is no selection, the duration of the sound may change slightly even with the Speed set to 100%. To preserve the duration precisely, select all of the sound before applying the effect. This is a very CPU intensive effect. On some machines, the real-time preview of stereo sounds might stutter. If this is the case, use Amplitude Decimate (see below) during preview to reduce the CPU load.
Metasynth is so great
it's a time capsule from when anything was possible