The names are pretty self‑explanatory, but after working with both versions, élastique Efficient sounds very close to élastique Pro. There are two zplane algorithms - élastique Pro and élastique Efficient. In addition to improved sonic quality, élastique time‑stretching also uses memory more efficiently, preserves transients without phasing artifacts, processes audio faster than the previous Radius algorithm, and preserves formants for both monophonic and polyphonic material.

Now Cakewalk has incorporated these algorithms, and their inclusion touches the entire program - including AudioSnap, which has resulted in major improvements as well as significant bug fixes. Zplane's élastique time‑stretching algorithms have become something of an industry standard you'll find them in products from multiple companies. However, the sound quality wasn't up to today's standards. I did find AudioSnap's stretching‑based functions very useful (although this often required correcting the transient detection manually, which is still an issue). Furthermore, the AudioSnap and VocalSync functionality based on the stretching engine exposed its limitations.

Real‑time stretching was good enough only for a preview rendering was necessary to find out what something really sounded like when stretched. Although it was possible to change an entire project's tempo, it was a complicated, multi‑step process. One of Sonar's biggest limitations involved time‑stretching, and that carried over to Cakewalk. The latest update (2018.09) answers that question.

However, a big question on users' minds was whether there would continue to be any kind of major updates. There have been many updates to Cakewalk by BandLab since it was acquired, as well as multiple stability improvements. Zplane's advanced time‑stretching and pitch‑shifting algorithms are now available in Cakewalk. Screen 1: You can select the various available stretch methods in Preferences, under Audio / Playback and Recording.

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