Design and implementation of a software DSP system to correct digital audio reproduction artifacts.

In this work the listening room's acoustic distorsion phenomenon (frequency response nonlinearity) has been studied and attacked in order to improve the perceived sound subjective quality characteristics. Two different techniques of Spectral Analysis have been tested and evaluated in order to assess the frequency response of different environments. Within a collaboration between Istituto di Scienza e Tecnologie dell'Informazione (ISTI-CNR) and TangerineTech Engineering, a Room Correction procedure has been perfected making use of digital parametric high-resolution IIR filters. The result of this research is a Software DSP which can process digital audio and compensate the filtering behavior of listening rooms. The whole application has been released for the Apple Macintosh platform.