In article ,
lordy wrote:
Just breaking in my Project Debut 3 turntable. Nice sound but there is
a lot of turntable noise. Its been a while since I've used a turntable
in anger but I don't remember this much noise on my old Dual 505.

I've uploaded a small mp3 clip (about 10secs) here
http://lordy.org.uk/rising_to_the_top_-_keni_burke.mp3 (*)

The background noise is only present when the stylus hits the vinyl - so
I guess its not a ground issue? Does it sound excessive?

Strange - it's mainly hum which would suggest a ground problem, although
it would be nice if the clip included a bit before the stylus was lowered.
It's possible to get induced hum on the cartridge from the turntable motor
which doesn't show with the pickup on the rest.

Can't you find a CD of this performance? ;-)

--
*When companies ship Styrofoam, what do they pack it in? *

Dave Plowman London SW
To e-mail, change noise into sound.

On Mon, 28 Aug 2006 19:40:38 +0100, "Dave Plowman (News)"
wrote:


Strange - it's mainly hum which would suggest a ground problem, although
it would be nice if the clip included a bit before the stylus was lowered.
It's possible to get induced hum on the cartridge from the turntable motor
which doesn't show with the pickup on the rest.

Aren't you seeing the lf stuff?

In article ,
Laurence Payne lpayne1NOSPAM@dslDOTpipexDOTcom wrote:
Strange - it's mainly hum which would suggest a ground problem,
although it would be nice if the clip included a bit before the stylus
was lowered. It's possible to get induced hum on the cartridge from the
turntable motor which doesn't show with the pickup on the rest.

Aren't you seeing the lf stuff?

Only listened to it on the computer speakers. The mains hum is the obvious
thing.

--
*Never underestimate the power of stupid people in large groups

Dave Plowman London SW
To e-mail, change noise into sound.

On Tue, 29 Aug 2006 00:29:50 +0100, "Dave Plowman (News)"
wrote:

Strange - it's mainly hum which would suggest a ground problem,
although it would be nice if the clip included a bit before the stylus
was lowered. It's possible to get induced hum on the cartridge from the
turntable motor which doesn't show with the pickup on the rest.

Aren't you seeing the lf stuff?

Only listened to it on the computer speakers. The mains hum is the obvious
thing.

Ah. Look at it in a wave editor. There's HUGE amounts of lf rubbish.

In article ,
Laurence Payne lpayne1NOSPAM@dslDOTpipexDOTcom wrote:
On Tue, 29 Aug 2006 00:29:50 +0100, "Dave Plowman (News)"
wrote:

Strange - it's mainly hum which would suggest a ground problem,
although it would be nice if the clip included a bit before the
stylus was lowered. It's possible to get induced hum on the
cartridge from the turntable motor which doesn't show with the
pickup on the rest.

Aren't you seeing the lf stuff?

Only listened to it on the computer speakers. The mains hum is the
obvious thing.

Ah. Look at it in a wave editor. There's HUGE amounts of lf rubbish.

As on any LP?

--
*When it rains, why don't sheep shrink? *

Dave Plowman London SW
To e-mail, change noise into sound.

"Dave Plowman (News)" wrote in message
...
In article ,
Laurence Payne lpayne1NOSPAM@dslDOTpipexDOTcom wrote:
On Tue, 29 Aug 2006 00:29:50 +0100, "Dave Plowman (News)"
wrote:

Strange - it's mainly hum which would suggest a ground problem,
although it would be nice if the clip included a bit before the
stylus was lowered. It's possible to get induced hum on the
cartridge from the turntable motor which doesn't show with the
pickup on the rest.

Aren't you seeing the lf stuff?

Only listened to it on the computer speakers. The mains hum is the
obvious thing.

Ah. Look at it in a wave editor. There's HUGE amounts of lf rubbish.



Oh dear, another clown who looks at waveforms to *see* what he's hearing....



As on any LP?



What? *Including* your 'excellent' digital masters....???

On Tue, 29 Aug 2006 11:10:37 +0100, "Keith G"
wrote:


Ah. Look at it in a wave editor. There's HUGE amounts of lf rubbish.



Oh dear, another clown who looks at waveforms to *see* what he's hearing....

Silly boy. You may not be able to directly hear LF, but it's there
and it's soaking up power. Ears are good. Analysis is good. They
work together.

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in
message
On Tue, 29 Aug 2006 00:29:50 +0100, "Dave Plowman (News)"
wrote:

Strange - it's mainly hum which would suggest a ground
problem, although it would be nice if the clip
included a bit before the stylus was lowered. It's
possible to get induced hum on the cartridge from the
turntable motor which doesn't show with the pickup on
the rest.

Aren't you seeing the lf stuff?

Only listened to it on the computer speakers. The mains
hum is the obvious thing.

The 100 Hz hum is only present when the needle is actually in the groove.

Ah. Look at it in a wave editor. There's HUGE amounts
of lf rubbish.

Cheap turntable?

In article ,
Arny Krueger wrote:
Only listened to it on the computer speakers. The mains
hum is the obvious thing.

The 100 Hz hum is only present when the needle is actually in the groove.

Yes - definitely shown by the new clip. I've got no theories - have you?
Any muting circuit at start or end of disc would remove the out of groove
surface noise too...

--
*I went to school to become a wit, only got halfway through.

Dave Plowman London SW
To e-mail, change noise into sound.

"Dave Plowman (News)" wrote in message
...
In article ,
Arny Krueger wrote:
Only listened to it on the computer speakers. The mains
hum is the obvious thing.

The 100 Hz hum is only present when the needle is actually in the groove.

Yes - definitely shown by the new clip. I've got no theories - have you?
Any muting circuit at start or end of disc would remove the out of groove
surface noise too...


Muting circuit...?? (Debut...??)

Pretty obvous it's the cart and/or the wires to the cart, I would have
thought. The OP needs to try another another one or at least remove the one
he's got and try re-fitting it...