The example tones are played first without the sustain pedal and then with the synthetic and real sustain pedals, respectively. The tones are separated by 1 second of silence:

[ (1) no sustain pedal --- (2) synthetic sustain pedal --- (3) real sustain pedal ]

The residual signals are presented first without the sustain pedal engaged and then with the synthetic and real sustain pedals engaged, respectively. The signals are separated by 1 second of silence:

[ (1) no sustain pedal --- (2) synthetic sustain pedal --- (3) real sustain pedal ]

The first sound example illustrates the effect of the dispersion filters. The sound example consists of two tones: the tone A4 (key index 49) is first processed with the sustain-pedal algorithm without the dispersion filters, and then the same tone is processed with the proposed algorithm, which contains the dispersion filters. The difference is best audible in the late decay; in the first tone it is more regular compared to the late decay of the second tone.

The second sound example presents the residual signals of the same tones.

Organization of tones in the sound example:

[ (1) synthetic sustain pedal without the dispersion filters --- (2) synthetic sustain pedal with the dispersion filters ]