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Design of MLS Measuring System for Objective Room Acoustical Parameters

Stephanie Salaun $<$salauns at ccrma$>$ (CCRMA)

A room can be defined by different acoustical parameters (decay curve, reverberation time, early decay time, clarity..). In order to measure these parameters, different techniques can be used like periodic pulse testing, time-delay spectrometry (TDS) and maximum-length sequences (MLS).

This project deals with a system measuring room acoustical parameters using the Maximum-Length Sequence (MLS) method. This system is based on both a DSP and a PC where the DSP generates the MLS and extracts the room impulse response. The PC calculates the parameters and displays them in a graphical user interface (GUI) which also controls the measurement.


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Download mus423h.pdf

``CCRMA DSP Seminar Prior Abstracts'', by Julius O. Smith III, Aut-Spr Quarters, CCRMA Ballroom, The Knoll, Stanford University.
Copyright © 2005-12-28 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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