S7.5

This is a curve with a very slow decay at beginning, a fast decay at medium and a slow decay at the end. The area of the curve is 50.39 % of the full square area
(-5.95 dB).

If based on area ratio (current to Linear (50%), it’s RT60 time should be 1.01 of Linear RT60.

This curve was calculated from the S-Curve (Sigmoid) Equation, applying a value of 7.5 and 0.5 as constants

https://en.wikipedia.org/wiki/Sigmoid_function

Waterfall (WF)

Default frequency decay sequence was faded out, in the extension of 9 octaves, using a Waterfall sound as generator to produce this set of impulse responses

It’s a general-purpose slow decay impulse, for vocals and instruments, or any electronic musical source.

The collection is divided into 44.1 kHz 24 bit, 48 kHz 24 bit and 96 kHz 24 bit folders.

Inside each sample rate folder 12 tone folders (A to Bb).

Inside each Tone folder, 8 clean impulse files in a total of 288 Impulse files, with the following folder structure:

Wave Naming

WF S75 A 3 means Waterfall sound as generator, S-Curve 7.5 0.5 as fall curve, A as tone and 3 seconds of Impulse length.

WF S75 A MS 3 the same as previous but with M/S processing.

WF S75 A 6 means Waterfall sound as generator, S-Curve 7.5 0.5 as fall curve, A PH as tone, and 6 seconds of Impulse length.

WF S75 A Oct 6 Oct means 1 octave up.

The files on the other folders follow the same syntax meanings