Subject: Re: Gaussian vs uniform noise audibility From: John Lazzaro <lazzaro(at)EECS.BERKELEY.EDU> Date: Sat, 24 Jan 2004 10:51:13 -0800Eckard Blumschein writes: > Of course, complex representation of a signal requires magnitude as > well > as phase. (Magnitude is always positive while there are positive and > negative amplitudes.) This should once again persuade anybody that the > inner ear does not perform a complex Fourier transform. Malcolm Slaney's review of Pattern Playback techniques: http://rvl4.ecn.purdue.edu/~malcolm/interval/1994-036/IEEE-SMC-95.pdf was an eye-opener for me -- relatively simple techniques let you invert magnitude-only, nonlinearly-processed representations back into faithful (if not bit-accurate) audio. --- John Lazzaro http://www.cs.berkeley.edu/~lazzaro lazzaro [at] cs [dot] berkeley [dot] edu ---