Ableton Forum

i have a file playing at original tempo, without any warp marker. when i change from re-pitch or tone mode to complex, i can ear a difference in the high frequency range.
i think playing back a file at its original tempo, whatever the mode is should leave it untouched.

i did some testing with this a while back. i am a bit fuzzy on exactly what happened, but i think that you are correct. all warp modes except complex do not alter the audio unless the tempo changes. you can verify this with the phase-flipping test.

however, complex mode seems to alter the audio even at original tempo. this is why my clips were sounding like shit when i consolidated them with my preferences set to auto-warp complex mode. the samples were rendering through complex warp and then getting put into complex warp AGAIN, leading to crappy high end distortion as you have heard.