The package contains the njl LADSPA plugins:

noise_1921.so
1921 IEEE Single Precision Noise
Sign, Mantissa and Exponent are fed by a pseudo-random number generator
resulting in a sort of crackling white noise with 0dB peak amplitude.

noise_1922.so
1922 Integer Noise
White noise with variable precision from a pseudo-random number generator

eir_1923.so
1923 Experiments in Representation
Simulate half-precision floating point and other representations

risset_1924.so
1924 Continuos Risset Scales
Popular aural illusion in which a sound appears to continuously increase
(or decrease) in pitch.