Is this too much noise for a budget turntable..
 

In article ,
lordy 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.

Done. I've re-recorded the clip, and added another clip from another
vinyl source for good measure.

http://lordy.org.uk/noise.html

I noticed something a bit odd, the hum
only appears when the needle finds the groove. When its skirting around
outside of the groove there is no noise.

I'm totally lost as to why the hum should only start when the stylus
actually hits a groove.

I look forward with interest to the theories. ;-)

--
*There's no place like www.home.com *

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

Is this too much noise for a budget turntable..
 

In article ,
Don Pearce wrote:
No, the hum at least is there all the way through - it is just audibly
masked during the really noisy bit while finding the groove.

It's not - it clearly starts with the wanted mod.

--
*When I'm not in my right mind, my left mind gets pretty crowded *

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

Is this too much noise for a budget turntable..
 

In article ,
Keith G wrote:
I thought Plowie made the original rematk (I don't read the posts
*thoroughly* enough - I mostly skim 'em and get 'em wrong sometimes),
so sorry Plowie, I didn't realise you weren't the clown who's looking
at music instead of *listening* to it!! :-)

You should read them carefully and learn.

--
*Proofread carefully to see if you any words out or mispeld something *

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

Is this too much noise for a budget 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.

Is this too much noise for a budget turntable..
 

"Dave Plowman (News)" wrote in message
...
In article ,
Keith G wrote:
I thought Plowie made the original rematk (I don't read the posts
*thoroughly* enough - I mostly skim 'em and get 'em wrong sometimes),
so sorry Plowie, I didn't realise you weren't the clown who's looking
at music instead of *listening* to it!! :-)

You should read them carefully and learn.



Don't be such a tit, Plowie....

Is this too much noise for a budget turntable..
 

"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...

Is this too much noise for a budget turntable..
 

On 2006-08-29, Keith G wrote:

"Dave Plowman (News)" wrote in message
...

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...

'Twas a Richer Sounds 'OpenBox' jobbie! £20 off and cat hairs to boot.
Last in the shop at the time. I've returned it and got a brand new one
no quibbles. I'll give it a spin tomorrow!

Lordy

Is this too much noise for a budget turntable..
 

"Laurence Payne" lpayne1NOSPAM@dslDOTpipexDOTcom wrote in message
...
On Tue, 29 Aug 2006 13:19:43 +0800, "Alan Rutlidge"
wrote:

Could be a bit of hum and rumble mixed in together. No I haven't bothered
placing your samples into CEP and analysing them - too busy today for
that.
Some records actually have some rumble evident from the master cutting
process. :-(

It took me probably less time to chuck the sample into Wavelab and
look at the spectrum than it did to type this message :-) If you're
going to comment, might as well take the trouble to look at the
problem.

First off I don't have Wavelab and CEP isn't installed on this machine.

I offered an opinion. Perhaps not one you share.

If the OP took a sample from a nice clean LP which is known to play quietly
in the parts between tracks he may have a benchmark with which to compare
????

Okay, so your considered opinion / diagnosis by proxy on the problem / fault
is?

Cheers,
Alan

Is this too much noise for a budget turntable..
 

In article , Dave Plowman (News)
wrote:
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 thought someone else had suggested this, but in case not:

If the 'hum' is only present when the needle is in the groove, then I'd
suspect it is mechanical vibration induced by the motor which is reaching
the actual platter/arm.

I don't know what materials are used, but it could either be motor
vibtations, or vibrations of nearby materials induced by stray fields from
the motor.

Slainte,

Jim

--
Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm
Audio Misc http://www.st-and.demon.co.uk/AudioMisc/index.html
Armstrong Audio http://www.st-and.demon.co.uk/Audio/armstrong.html
Barbirolli Soc. http://www.st-and.demon.co.uk/JBSoc/JBSoc.html

Is this too much noise for a budget turntable..
 

On Wed, 30 Aug 2006 13:59:29 +0800, "Alan Rutlidge"
wrote:

Could be a bit of hum and rumble mixed in together. No I haven't bothered
placing your samples into CEP and analysing them - too busy today for
that.
Some records actually have some rumble evident from the master cutting
process. :-(

It took me probably less time to chuck the sample into Wavelab and
look at the spectrum than it did to type this message :-) If you're
going to comment, might as well take the trouble to look at the
problem.

First off I don't have Wavelab and CEP isn't installed on this machine.

I offered an opinion. Perhaps not one you share.

If the OP took a sample from a nice clean LP which is known to play quietly
in the parts between tracks he may have a benchmark with which to compare
????

An opinion prefaced by "I can't be bothered to look into this
properly". Remember, the Reply button is optional :-)

The rumble started before the needle hit the record.

We're being rather polite for this group. When does the personal
abuse start? :-)