HS044

This is a curve with a medium slow decay at Start and a very slow decay at the End. The area of the curve is 34.84% of the full square area (-9.16 dB FSA).

If based on area ratio (current to Linear (50%), it’s RT60 time should be 0.7 of Linear RT60.

This curve was calculated from the Hyperbolic Secant Curve Equation, applying a value of 0.444444 as constant.

https://mathworld.wolfram.com/HyperbolicSecant.html

https://archive.lib.msu.edu/crcmath/math/math/h/h424.htm

WWSH

Default decay sequence was faded out, in the extension of 9 octaves, using two sets of processed White Noise as generators to produce this set of impulses

It’s a general-purpose fast decay impulse with slow ending, 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

WWSH HS044 A PH 3 Means two sets of processed White Noise as generators, Hyperbolic Secant 0.444444 as fall curve, A as Tone, Phaser as modulator and 3 seconds of Impulse length.

WWSH HS044 A PH MS 3 The same as previous but with M/S processing.

WWSH HS044 A PH 6 Means two sets of processed White Noise as generators, Hyperbolic Secant 0.444444 as fall curve, A as Tone, Phaser as modulator and 6 seconds of Impulse length.

WWSH HS044 A PH Oct 6 Oct means one octave up.

The files on the other folders follow the same syntax meanings