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In Reply to: Very interesting posted by GGA on May 4, 2007 at 12:23:32:
I use Sound Forge software, which contains a spectrum analyzer function. First, I copied the output from my phono preamp to 24/96 high-resolution digital using an Alesis ML-9600 Masterlink. Then I transfered the digital files to my computer for analysis in Sound Forge.I never tried this experiment while playing an unmodulated groove, but you are probably correct that the vinyl noise floor would be higher and tend to mask some of the feedback.
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Follow Ups
- Re: Very interesting - John Elison 13:25:29 05/04/07 (8)
- Have you figured out how the 60 hz - jnorv 14:54:08 05/04/07 (7)
- Re: Have you figured out how the 60 hz - John Elison 15:39:34 05/04/07 (6)
- Very cool data! Thanks for sharing this John. nt - Scottrt 17:17:38 05/04/07 (5)
- You're Welcome! (nt) - John Elison 17:19:53 05/04/07 (4)
- Have you tried to experiment - jnorv 17:42:38 05/04/07 (3)
- Re: Have you tried to experiment - John Elison 17:49:37 05/04/07 (2)
- No, to measure the signal into the vinal disc. nt - jnorv 17:51:20 05/04/07 (1)
- Oh, do you mean did I to measure acoustic feedback into vinyl again???? - John Elison 18:27:17 05/04/07 (0)