Ableton's Warp Modes Explained

Ableton’s Warp Modes allow users to adjust the timing and pitch of audio clips. 

Beats Mode: Designed for drum loops, beats mode relies on short transients to manipulate and stretch the loop. This mode is not reliable for short synth shots or melodic loops.

Tones Mode: Designed for sounds with a clear pitch, such as vocals or melodic loops. Adjusting the grain size controls how the audio file is broken up into "warp parts". 

Texture: For sounds that don't have complex melodic properties that you wish to keep, try using the Texture mode. This mode offers a similar grain style like you'll find in the Tones mode, but allows for more experimentation with the Flux parameter to create some wild results.

Re-Pitch: Think of the classic turntable sound. This mode will speed up or slow down to match the global tempo. This mode affects pitch when adjusted so don't use if you wish to retain the same pitch.

Complex: Designed to warp complex audio files, the Complex Pro mode is the most CPU intensive. This mode attempts to preserve all rhythmic and tonal qualities of an audio file. 

Complex Pro: Complex Pro is similar to Complex, but adds formant and envelope parameters. The formant parameter tries to preserve the natural sound of the voice, while the envelope adjusts spectral qualities.