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Goran Finberg: > I was just talking to a colleague, Stefan Lindstrom SSR AB. He´s just > finished the 6th volume of Jussi Bjorling 78 transfers for Naxos. > > Stefan Lindstrom is a very old friend since 30 years back and he´s got > almost anything ever made in the restoration buisness at his place some > 130 kilometers from where I sit. > > He´s also as fond of the Sonic Solutions NoNoise system as is I. > What combination of cartridge/tonearm/turntable does Stefan Lindstrom use for his transfers? > He claims that Ulrich of Algorithmix in personal communication feels > that the above 20 kHz information isn´t needed by the Algorithmic > declicker. > > Instead he, Ulrich, feels that the garbage above 20 kHz may cause more > problems for the wanted audio than getting rid of it as early as > possible by the 20 kHz brickwall at 44.1 kHz sampling. Perhaps the higher frequency information is not used nor is beneficial for Sonic Solutions NoNoise and Algorithmix. But that doesn't mean that this is true for all denoising algorithms and all process chains, now or in the future. The implication seems to be that because Agorithmix and NoNoise do not benefit from frequencies greater than 20 kHz, there is no point in working at higher sample rates. I have tests that show that the higher frequency information and the properties of an MC do make a difference to noise detection/removal in my system, and am offering to share my tests with anyone interested and who can accept a 2MB email attachment. I can't think of a more productive means of having this discussion than to share A-B tests and discuss those. Eric Jacobs The Audio Archive