On 2026-07-04 7:45 PM, Stefano D'Angelo wrote:
I used to think that we don't perceive phase as well but, no, that's not true. Two examples: 1. Feed a Moog-like filter with a sawtooth wave and try again phase-inverting it. 2. Take a static waveform of your choice with a limited number of predominant harmonics and then resynthesize it keeping the magnitudes and randomizing the phases - most of the times you won't perceive a difference but sometimes you'll do.
It does indeed change transients. I mentioned that on the plugin's page.Back when I wrote the plugin I had a conversation with Bill Schottstaedt who also worked on the subject who phrased it like this: "You can move smoothly from all cosines to a minimum peak-amplitude waveform, and hear the dramatic difference if the number of partials is reasonably large."
Anyway, dynamic range reduction through allpass filters was also studied in [1] and [2].Stefano D'Angelo[1] J. Parker, V. Valimaki, "Linear Dynamic Range Reduction of Musical Audio Using an Allpass Filter Chain", https://ieeexplore.ieee.org/ document/6516022
They want $36 for the paper! So no, thank you. I could probably email Julien and ask him for the paper though.
Cheers! robin PS. Looks like you missed link [2].
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