Intensimetric Monitoring of Acoustic Quadraphonic Recordings Reproduced Through a 5.1 Loudspeaker Array

Acoustic quadraphony is the application of sound intensimetry to audio recording and reproduction processes. Practical exploitation of this technology has been recently implemented by using the Microflown vector intensity probe which allows the direct measurement of sound pressure and particle velocity impulse responses. In order to evaluate the physical correspondence of reconstructed sound fields with the quadraphonic original one, an experimental test has been done by measuring the energetic quantities inside the "sweet spot" of a 5.1 playback system.