Astroid

This is a curve with a fast decay at beginning and a slow decay at the end. The area of the curve is 29.85% of the full square area (-10.38 dB FSA).

If based on area ratio (current to Linear (50%), it’s RT60 time should be 0.61 of Linear RT60.

This curve was calculated from the Astroid Curve Equation ( https://en.wikipedia.org/wiki/Astroid )

3 SEQ ISO

3 SEQ means that 3 frequency groups of Major and Minor chords were faded out at an equal energy per frequency band mode

It’s a general-purpose fast decay impulse, for vocals and instruments, or any electronic music purpose.

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

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

Inside each Tone folder, 2 folders Major and Minor,

Additionally, two folders of processed impulses per Tone folder were added.

A Wide version and a Reverse processed version of the Iso impulses in a total
of 3456 Impulse files, with the following folder structure:

Wave Naming

3SISOWN AST A Min Clear 3 means 3 SEQ ISO White Noise as generator, AST as fall curve, A Minor as Tone Clear as sound and 3 seconds of Impulse length.

3SISOWN AST A Min Grey 3 means 3 SEQ ISO White Noise as generator, AST as fall curve, A Minor as Tone Grey as sound and 3 seconds of Impulse length.

3SISOWN AST A Min Clear MS 3 the same as previous but with M/S processing.

3SISOWN AST A Min Grey MS 3 the same as previous but with M/S processing.

3SISOWN AST A Min Clear 6 means 3 SEQ ISO White Noise as generator, AST as fall curve, A Minor as Tone Clear as sound and 6 seconds of Impulse length.

3SISOWN AST A Min Clear 6 means 3 SEQ ISO White Noise as generator, AST as fall curve, A Minor as Tone Grey as sound and 6 seconds of Impulse length.

3SISOWN AST A Min Clear Oct 3 The same as above but  one octave up.

3SISOWN AST A Min Grey Oct 3 The same as above but  one octave up.

The files on the other folders follow the same syntax meanings