[linux-audio-dev] Re: applying RIAA curves in software

Cornell III, Howard M howard.m.cornell.iii at lmco.com
Tue Oct 25 18:51:43 UTC 2005



Maybe use a crystal cartridge that puts out approximately one volt instead of a magnetic cartridge that puts out tens of millivolts.  That attacks the signal to noise problem from the signal side.  The RIAA record curve reduces bass and increases treble, and the reverse RIAA curve for playback does the opposite.  If most of the objectionable noise is high frequency and you only filter it once wouldn't you just have to do it when the noise was accentuated, before the reverse RIAA filter? 

-----Original Message-----
From: linux-audio-dev-bounces at music.columbia.edu [mailto:linux-audio-dev-bounces at music.columbia.edu] On Behalf Of Richard Smith
Sent: Tuesday, October 25, 2005 1:36 PM
To: The Linux Audio Developers' Mailing List
Subject: Re: [linux-audio-dev] Re: applying RIAA curves in software

> Quite a lot of words. I´m impressed. And convinced ...
>
> ... of the fact, that these guys just want to sell their stuff.
>

You really think its just all hype?  Sort of made sense to me.  If you do click and pop removal prior to the un-RIAA.  Then that will go that much further to reduce the noise since its all high-frequency.

> If you have a decent phono preamp, use it and forget all about that 
> tracertek advertising hype.
>

I don't have a preamp at all.  Thats part of what led me to that page.
 Recommendations?

--
Richard A. Smith







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