Kappa

This is a curve with a very fast decay at beginning and a  slow decay at the end. The area of the curve is 34.08% of the full square area (-9.35 dB).

If based on area ratio (current to Linear (50%), it’s RT60 time should be 0.68 of Linear RT60. Time This curve was calculated from the Kappa Curve Equation

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

WPN

This collection was made by direct Fall from a mix of White and Pink Noise of default style Octave Curves.

It’s a general-purpose fast 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 folder 12 tone folders (A to Bb).

Inside each tone folder we have 12 unprocessed impulse files covering 3 octaves, more 5 folders of different building type impulses, as follows:

N is another type of direct unprocessed building

WPN I with a slower fall of frequency bands

WPN II with a faster fall of frequency bands

WPN III with a progressively faster fall of frequency bands

WPN IV with a progressively faster fall of frequency bands

Total of 2568 impulse files. with the following folder structure:

Examples:

• WPN KAP A 3 means White and Pink Noise as generator, Kappa as fall curve, A Minor as Tone and 3 seconds of Impulse length.
• WPN KAP A MS 3 – the same as previous but with an M/S building processing
• WPN KAP A 6 means White and Pink Noise as generator, Kappa as fall curve, A as Tone and 6 seconds of Impulse length.
• WPN KAP A Oct 6 – Oct means one octave up
• WPN KAP A DOct 6 – DOct means one octave down

The files on the other folders follow the same syntax meaning