'Psysound3': Software for Acoustical and Psychoacoustical Analysis of Sound Recordings

Abstract

This paper describes a software project called PsySound3. This software provides an accessible platform for the analysis of sound recordings using procedures applied in acoustics and psychoacoustics. Acoustical analysis methods include a sound level meter module, as well as processes such as Fourier transform, cepstrum, Hilbert transform and auto-correlation. Psychoacoustical models include dynamic loudness, sharpness, roughness, loudness fluctuation, pitch height and pitch strength. Results are presented as numbers, auditory graphs and visual graphs. The software is modular, allowing additional analysis methods to be contributed. Several additional analysis modules are planned. The software is distributed freely via www.psysound.org. This paper illustrates some of the analysis possibilities by using auditory alarms as examples.