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Old 12-02-2019, 09:49 AM   #2
X-Raym
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Join Date: Apr 2013
Location: France
Posts: 6,209
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This isn't related to melodyne or audio analysis way but the most efficient way I found to do is to
  1. play the sound
  2. inserting a midi note at every beat (using a MIDI controller)
  3. converting MIDI notes to marker
  4. converting markers to tempo marker
3 and 4 are this custom action
Code:
Custom: MIDI notes to Tempo Marker
  SWS/BR: Create project markers from notes in selected MIDI items
  Script: Mordi_Create tempo-map from markers.lua

The results are quire good and can be adjusted easily. The process duration is basically the length of the song.
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