paul@sdd.hp.com (Paul K Johnson) (12/19/90)
The following is a summary of responses from my recent request for a low
distortion sine wave test disc. It's interesting that of all of the
responses, no two were for the same disc! Any seconds on these votes?
paul johnson
Internet: paul@sdd.hp.com
UUCP : {hplabs|hpfcla|ucsd}!hp-sdd!paul
>From kuusama@tut.fi Thu Dec 13 07:31 PST 1990
You want to use Philips audio signals disc 1, Philips code SBC429.
It has several test signals: sinewaves at various frequencies, impulses,
noise signals, test signals for intermodulate distortions etc.
All the signals are computer generated, so distortions are as low as
the CD format and your player can reproduce.
--
Juha
>From eacj@theory.TN.CORNELL.EDU Thu Dec 13 08:45 PST 1990
Try the CD-1 test compact disk from CBS. This can be ordered from Old
Colony Sound Lab (607-924-6371). The disk is something of a standard - many
of the test reports you see in the HiFi mags use it. In addition to
low distortion sine waves, it has monotonicity tests, impulses, square
waves, IM tests, etc.
- Julian
>From cs.utexas.edu!uwm.edu!csd4.csd.uwm.edu!info-high-audio-request Thu Dec 13 09:56:57 PST 1990
I don't own a sensitive distortion analyzer (and I've never checked
with a 'scope - hmm) but I've gotten a lot of use out the Denon test
disk. I can look up the disk id at home, but I think they only made
one. It has sine wave tones ranging from 20 to 20k hz in relatively
small steps (recorded at various levels), sweeps, low level linearity
tests, noise tests, and all sorts of useful things. A very helpful
CD.
Larry
>From janson@ATHENA.MIT.EDU Wed Dec 12 10:03 PST 1990
columbia makes one.
it can be special ordered from them if you can't get it through some
audio retailer. drop me a line if no one else sends you the address
and i'll dig it out.
james.
>From don.devitt@East.Sun.COM Wed Dec 12 10:59 PST 1990
I don't have the disk with me but I know the Video Disk standard
has good sine waves at various db levels. It is off of the
digital channels and I remember being impressed reading the
description. This obviously requires a Video Disk Player
that can read digital audio to read it.
Don DeVitt