Re: [ARSCLIST] Technics SP-15 to computer nightmare

["Prentice, Will" <Will.Prentice@xxxxx>]

Not sure what editing or burning software/hardware you're using, but it
may be that you are inadvertently adding pre-emphasis when burning the
disc. This facility was commonly used on the earliest pressed CDs and if
so, the highest frequencies will be boosted by about 10dB. A standard,
standalone CD player will spot the pre-emphasis flag and automatically
de-emphasis this in it's analogue circuitry; a computer reading the CD
may not have the ability to de-emphasise, and so will replay the harsh
sounding emphasised audio. Many or most audio software packages will
allow you to view the contents of a CD and see the status of the
emphasis flag.

If this is the case, you'll need to burn another CD-R, ensuring that
pre-emphasis is turned off.

Good luck

Will 

-----Original Message-----
From: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx] On Behalf Of Ted Kendall
Sent: 14 May 2009 10:48
To: ARSCLIST@xxxxxxxxxxxxxxxx
Subject: Re: [ARSCLIST] Technics SP-15 to computer nightmare

Your computer speakers or amp are evidently at fault here - maybe they
can't 
handle the surface noise from the 78 - I'd not be inclined to worry
about 
it...

Ted Kendall
----- Original Message ----- 
From: "gary atkinson" <gary.document@xxxxxxxxxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxxxxxx>
Sent: Thursday, May 14, 2009 10:23 AM
Subject: Re: [ARSCLIST] Technics SP-15 to computer nightmare


Sometime ago I acquired a Technics SP-15 deck. I took it, at the time as
a
"stand by" and it has been "standing by" waiting for it's big moment to
arrive. A few days ago that moment arrived and I transferred a 78rpm
record
from it. As it hit the amp it sounded wonderful, both through speakers
and
headphones. As it went through the Tascam CC-222SL and onto CD it
sounded
splendid. Play the CD back on the Tascam, Marantz, Pioneer and even the
car
CD player and everything is beautiful. Play it back through the computer
(desk top and lap top) and the sounds terrible; very distorted and
tinny.
All the more odd is that when I play back from the computer (either the
CD
or going in directly through and Edirol interface), through an external
amp,
it sounds fine, yet when I turn up the computer speakers at the same
time
what comes out of them directly from the computer is very distorted.

Anything else played in the same way through the computers; vinyl from a
Thorens, tape from a Teac, any other CD from the Tascam, radio, DATs,
Minisidiscs etc are all fine. After having tried just about every
permutation of phone leads and sockets that I can think of I am homing
in on
the SP-15 deck. The computer seem to doesn't like it directly and though
other CD players and amps are happy playing the test CDs that hold
recordings transferred from the deck, again, the computer is not happy
when
it comes to tracks taken from the SP-15. (I created a CD with tracks
from
various sources and all played fine in the computer other than those
taken
from the SP-15).

I am about to set off and get the deck tested and it might be worth
noting
that the power lead goes to an AC Converter as this piece of equipment
was
from the U.S.A but now resides in the U.K.

Any advice on what could be the cause or how to resolve this conundrum
would
be greatly appreciated.

Gary.

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