In article , Dave Plowman (News)
wrote:
In article , Jim Lesurf
wrote:
Just to let people know that I have put up a Linux program for wow and
flutter measurement an analysis, linked from

http://www.audiomisc.co.uk/software/index.html

What I remain unsure about, though, is what suitable test discs are
available, new. I only know of the Analogue Productions example, which
should be OK. Anyone know of other current test discs that have
stready tones in the 1k - 10 k region?

Yes. Problem must be knowing how much of the wow and flutter comes from
the record itself.

Sadly, yes. I can check for an off-center LP if there are tracks on the
side at various radii. But unforunately, there seem to be only a few 'new'
LPs about. The Hi Fi News one has tracks at 300 Hz which is a wee bit on
the low side for this.

The analogue productions one has useful tracks at various radii. Only one
is actually the standard 3150 Hz. But 1 kHz works fine.

I'd hoped that other examples would be available. But no sign of them so
far. :-/

I'm OK because I've collected a range of test discs over mumble years. But
a test program isn't much use to someone else if they can't get a suitable
disc!

Jim

--
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