[linux-audio-user] RIAA curve [was: Hardware recommendations ...]

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On Mon, 2004-08-23 at 03:02, Frank Barknecht wrote:
> Hallo,
> Steve Harris hat gesagt: // Steve Harris wrote:
> 
> > On Sun, Aug 22, 2004 at 09:17:23PM +0200, Frank Barknecht wrote:
> > > The problem with records is not levels, but the RIAA distortion. You
> > > need a device which can adapt to this. There are special preamps for
> > > this, some cards like the Terratec Phase26 USB has them built in,
> > > normaly hifi amps have them (the input labeled "PHONO" most of the
> > > time), but most soundcards do not have them. 
> > 
> > Jan Depner has made a JAMin config file that undoes the RIAA curve, its
> > shipped with the latest tarball IIRC.
> 
> Interesting. What would you think this is quality-wise? Would it
> suffice to do "hi-fi" recordings of LPs through the standard line
> inputs, or would a hardware solution still be better?
> 
	It would depend on whether your non-RIAA preamp was "flat".  The RIAA
preamps have very few inflection points in the curve.  I used the
standard points and then let the spline do the intervening points.  It
works very well for me.  Now, if I'd just been a bit more careful with
my big black CDs, when I was a kid... ;-)

Jan



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