Perceptual Study of Decay Parameters in Plucked String Synthesis

摘要

A listening experiment was conducted to study the audibility of variation of decayparameters in plucked string synthesis. A digital commuted-waveguide-synthesis modelwas used to generate the test sounds. The decay of each tone was parameterized withan overall and a frequency-dependent decay parameter. Two different fundamental frequencies,tone durations, and types of excitation signals were used totalling in eight testsets for both parameters. The results indicate that variations between 25% and 40%in the time constant of decay are inaudible. This suggests that large deviations in decayparameters can be allowed from a perceptual viewpoint. The results are applied inmodel-based audio processing.