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From: DCROWE@GTRI01.GATECH.EDU
Newsgroups: rec.audio,comp.dsp
Subject: Re: Good speaker + DSP == perfect speaker?
Message-ID: <91086.090742DCROWE@GTRI01.GATECH.EDU>
Date: 27 Mar 91 14:07:42 GMT
References: <1991Mar22.171203.8665@sco.COM>
Organization: Georgia Tech Research Institute
Lines: 13

This is certainly possible, within the performance limits of the DSP (and, of
course, the software would have to protect the hardware from being "corrected"
beyond it's physical capabilities).

The really intersting thing is to go beyond the suggestion to correct amplitude
and phase response, and to model and predict the form of harmonic and
intermodulation distortion, so that a cancelling signal can be added as a
function of the current program material. Perhaps the CD source could be read
ahead by a second laser to give the DSP time to calculate the correction.

Devon Crowe              / "There are more linear functions in
dcrowe@gtri01.gatech.edu /  Physics than in Nature"
                         /                          _Norbert Weiner.