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Hi John, Doesnt analog EQ, by definition, shift phase? Or are you saying digital EQ doesnt shift phase? Rgds Tim Gillett ----- Original Message ----- From: "John Haley" <[log in to unmask]> To: <[log in to unmask]> Sent: Monday, April 16, 2018 10:28 AM Subject: Re: [ARSCLIST] Variable Reluctance Stereo Cartridges was "High Def vinyl?" > Yes, Paul, but after resampling it to get it to the correct speed, you > have > abandoned the analog world which is the best place to apply the phono-EQ's > de-emphasis without phase shifting--i.e., it is best to apply the right > curve during analog playback, before digitizing. > > Best, > John > > > On Sun, Apr 15, 2018 at 9:51 PM, Paul Stamler <[log in to unmask]> wrote: > >> On 4/15/2018 4:02 PM, John Haley wrote: >> >>> Mickey, >>> >>> There is a real issue with dubbing 78's (or any other recording) at a >>> speed >>> other than what it was intended to be played back at. You are >>> drastically >>> changing the frequencies of the recording when you play it at the wrong >>> speed, which will totally screw up the intended phono-EQ decoding, which >>> is >>> keyed into the original frequencies. >>> >> >> [much more good stuff snipped] >> >> If you dub the disc using a flat preamp with no EQ at 33.33 rpm, you can >> then resample it to an equivalent speed of 78.26, 76.6 or 80 rpm as >> needed. >> (Audition does his well.) Once it's at the right equivalent speed, you >> can >> add de-emphasis at the appropriate frequencies. This offers, for example, >> a >> way to get the good tracking of a Grado 78 cartridge, while minimizing >> the >> infamous "Grado wobble" -- there will be fewer things to excite it at >> 33.33 >> rpm than at 78 rpm (or a similarly high speed). >> >> Peace, >> Paul >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >>