Grotty "digital" sound

N

N_Cook

Guest
Musak in my pub was a CD juke-box , other than too loud at times, adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl days
and fluff accumulates around the needle and that fuzziness gets worse and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering never
going in there again, What is the name for this distortion? presumably from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.
 
"N_Cook" <diverse@tcp.co.uk> wrote in message
news:jr1kp2$an2$1@dont-email.me...
Musak in my pub was a CD juke-box , other than too loud at times, adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl
days
and fluff accumulates around the needle and that fuzziness gets worse and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering
never
going in there again, What is the name for this distortion? presumably
from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.
Click to expand...

Its probably just a low bitrate mp3.

But even low bitrate mp3's shouldn't sound so bad in a noisy pub environment
that people won't go there again.

Are you sure the speakers have not been damaged?
Or that the source is not now clipping a pre-amplifier/plugged into a phono
pre-amp by mistake?



Gareth.
 
Gareth Magennis <sound.service@btconnect.com> wrote in message
news:Ix0Br.22913$sD5.8014@fx03.am4...
"N_Cook" <diverse@tcp.co.uk> wrote in message
news:jr1kp2$an2$1@dont-email.me...
Musak in my pub was a CD juke-box , other than too loud at times,
adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring
stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl
days
and fluff accumulates around the needle and that fuzziness gets worse
and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering
never
going in there again, What is the name for this distortion? presumably
from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.





Its probably just a low bitrate mp3.

But even low bitrate mp3's shouldn't sound so bad in a noisy pub
environment
that people won't go there again.

Are you sure the speakers have not been damaged?
Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?



Gareth.
Click to expand...

There are 4 speakers and each sounds rubbish. It coincided with replacement
of the source, the mechanics of the CD deck gave up, but a mis-match between
source and the existing amp would make sense. As its consistently bad I
doubt it could be due to consistently bad internet material. There is a long
run of cable between the box on the wall and the amp , can't help the matter
 
"N_Cook" <diverse@tcp.co.uk> wrote in message
news:jr24ta$q4h$1@dont-email.me...
Gareth Magennis <sound.service@btconnect.com> wrote in message
news:Ix0Br.22913$sD5.8014@fx03.am4...


"N_Cook" <diverse@tcp.co.uk> wrote in message
news:jr1kp2$an2$1@dont-email.me...
Musak in my pub was a CD juke-box , other than too loud at times,
adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring
stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl
days
and fluff accumulates around the needle and that fuzziness gets worse
and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering
never
going in there again, What is the name for this distortion? presumably
from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.





Its probably just a low bitrate mp3.

But even low bitrate mp3's shouldn't sound so bad in a noisy pub
environment
that people won't go there again.

Are you sure the speakers have not been damaged?
Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?



Gareth.



There are 4 speakers and each sounds rubbish. It coincided with
replacement
of the source, the mechanics of the CD deck gave up, but a mis-match
between
source and the existing amp would make sense. As its consistently bad I
doubt it could be due to consistently bad internet material. There is a
long
run of cable between the box on the wall and the amp , can't help the
matter
Click to expand...
How is the Internet connected to the amplifier? I would guess something
amiss in this interface.


Gareth.
 
hr(bob) hofmann@att.net wrote:

On Jun 10, 1:17 pm, "Gareth Magennis" <sound.serv...@btconnect.com
wrote:

"N_Cook" <dive...@tcp.co.uk> wrote in message

news:jr24ta$q4h$1@dont-email.me...






Gareth Magennis <sound.serv...@btconnect.com> wrote in message
news:Ix0Br.22913$sD5.8014@fx03.am4...

"N_Cook" <dive...@tcp.co.uk> wrote in message
news:jr1kp2$an2$1@dont-email.me...

Musak in my pub was a CD juke-box , other than too loud at times,

adequate

sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring

stayed

the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl
days
and fluff accumulates around the needle and that fuzziness gets worse

and

worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering
never
going in there again, What is the name for this distortion? presumably
from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.

Its probably just a low bitrate mp3.

But even low bitrate mp3's shouldn't sound so bad in a noisy pub

environment

that people won't go there again.

Are you sure the speakers have not been damaged?
Or that the source is not now clipping a pre-amplifier/plugged into a

phono

pre-amp by mistake?

Gareth.

There are 4 speakers and each sounds rubbish. It coincided with
replacement
of the source, the mechanics of the CD deck gave up, but a mis-match
between
source and the existing amp would make sense. As its consistently bad I
doubt it could be due to consistently bad internet material. There is a
long
run of cable between the box on the wall and the amp , can't help the
matter

How is the Internet connected to the amplifier? I would guess something
amiss in this interface.

Gareth.- Hide quoted text -

- Show quoted text -


Do younger folks also complain - I think their hearing may be so
damaged from those walkman type devices that they may not even realize
the distortion, or think it is intended.
Click to expand...
What?

Jamie
 
Mr Cook, why don't you just ask the owner if you can troubleshoot the
system? You seem to know enough to figure out what's wrong.
 
On Sun, 10 Jun 2012 09:09:29 +0100, "N_Cook" <diverse@tcp.co.uk>
wrote:

Musak in my pub was a CD juke-box , other than too loud at times, adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl days
and fluff accumulates around the needle and that fuzziness gets worse and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering never
going in there again, What is the name for this distortion? presumably from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.
Click to expand...
Find a suitable MP3 player, Android phone, iPhone, or laptop that will
play MP3's. Make an adapter to whatever amplifier is being used. Play
some of the same flavor of music for the management. Many people
cannot recognize crappy audio when they hear it, but can tell the
difference between good audio and bad when there is an A/B comparison
available.

Such a test will also help expose whether the problem is the internet
radio or if someone trashed the amplifier during installation.

That also begs the question of why they're playing internet radio,
when a simple and cheap MP3 player would suffice as a replacement for
the CD juke box.

As always, no problem can be solved without first giving it a name. In
this case, I suggest "fuzzy sound" or "high end scratch". However, if
an audiophile is involved, a suitably complicated name, such as
"multi-dimensional dynamic CODEC mixing artifacts" should keep them
busy so that you can find the problem.

--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
<sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a phono
pre-amp by mistake?
Click to expand...
Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
<http://en.wikipedia.org/wiki/RIAA_equalization>
In this case, it sounds like too much highs, which would not fit the
curve.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization
In this case, it sounds like too much highs, which would not fit the
curve.
Click to expand...



I thought it was the other way round in this case, i.e. that the highs were
unintelligible (like fluff around a needle, according to Mr. Cook).


Gareth.
 
On Jun 10, 1:17 pm, "Gareth Magennis" <sound.serv...@btconnect.com>
wrote:
"N_Cook" <dive...@tcp.co.uk> wrote in message

news:jr24ta$q4h$1@dont-email.me...





Gareth Magennis <sound.serv...@btconnect.com> wrote in message
news:Ix0Br.22913$sD5.8014@fx03.am4...

"N_Cook" <dive...@tcp.co.uk> wrote in message
news:jr1kp2$an2$1@dont-email.me...
Musak in my pub was a CD juke-box , other than too loud at times,
adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring
stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl
days
and fluff accumulates around the needle and that fuzziness gets worse
and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering
never
going in there again, What is the name for this distortion? presumably
from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.

Its probably just a low bitrate mp3.

But even low bitrate mp3's shouldn't sound so bad in a noisy pub
environment
that people won't go there again.

Are you sure the speakers have not been damaged?
Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Gareth.

There are 4 speakers and each sounds rubbish. It coincided with
replacement
of the source, the mechanics of the CD deck gave up, but a mis-match
between
source and the existing amp would make sense.  As its consistently bad I
doubt it could be due to consistently bad internet material. There is a
long
run of cable between the box on the wall and the amp , can't help the
matter

How is the Internet connected to the amplifier?   I would guess something
amiss in this interface.

Gareth.- Hide quoted text -

- Show quoted text -
Click to expand...
Do younger folks also complain - I think their hearing may be so
damaged from those walkman type devices that they may not even realize
the distortion, or think it is intended.
 
On Sun, 10 Jun 2012 22:22:36 +0100, "Gareth Magennis"
<sound.service@btconnect.com> wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization
In this case, it sounds like too much highs, which would not fit the
curve.

I thought it was the other way round in this case, i.e. that the highs were
unintelligible (like fluff around a needle, according to Mr. Cook).
Gareth.
Click to expand...
Well, you might be right. It's been so long since I've played a fluff
encrusted record that I don't recall what sounds like. I thought that
it would sound like adding high frequency scratch, but now I'm not
certain. I do have a functional turntable, and can probably find
enough lint from the inside of my pocket to simulate the experience,
but methinks it's easier to simply await clarification by the OP.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
 
On Jun 10, 1:51 pm, Jeff Liebermann <je...@cruzio.com> wrote:
On Sun, 10 Jun 2012 09:09:29 +0100, "N_Cook" <dive...@tcp.co.uk
wrote:

Musak in my pub was a CD juke-box , other than too loud at times, adequate
sound rendition. That packed up and they replaced it with an "internet"
juke-box pulling sound files off broadband. Amp speakers and wiring stayed
the same, just source changed. Now whatever sound level, the sound is
terrible, but not to the management of course. Reminds me of the vinyl days
and fluff accumulates around the needle and that fuzziness gets worse and
worse , but with that you just lift the pickup and blow off the fluff.
Hasten to add , not just me, a musician friend of mine is considering never
going in there again, What is the name for this distortion? presumably from
being compress and decompressed so sung words are unintelligible and
instrument timbre become indistinguishable from general mush.

Find a suitable MP3 player, Android phone, iPhone, or laptop that will
play MP3's.  Make an adapter to whatever amplifier is being used. Play
some of the same flavor of music for the management.  Many people
cannot recognize crappy audio when they hear it, but can tell the
difference between good audio and bad when there is an A/B comparison
available.

Such a test will also help expose whether the problem is the internet
radio or if someone trashed the amplifier during installation.
Click to expand...
Good idea.

That also begs the question of why they're playing internet radio,
when a simple and cheap MP3 player would suffice as a replacement for
the CD juke box.
Click to expand...
I assume that, like in the US, public eating and drinking places must
pay license fees for the music played there. Using a commercial
internet radio service would keep the pub owner out of trouble with
the copyright holders, with a minimum of effort on his part. Internet
jukeboxes also permit access to a wide variety of tunes, so that his
customers can play exactly what suits them.
 
Jeff Liebermann <jeffl@cruzio.com> wrote in message
news:2b7at71f4f82da8252m26lcm5dbu5mm833@4ax.com...
On Sun, 10 Jun 2012 22:22:36 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization
In this case, it sounds like too much highs, which would not fit the
curve.

I thought it was the other way round in this case, i.e. that the highs
were
unintelligible (like fluff around a needle, according to Mr. Cook).
Gareth.

Well, you might be right. It's been so long since I've played a fluff
encrusted record that I don't recall what sounds like. I thought that
it would sound like adding high frequency scratch, but now I'm not
certain. I do have a functional turntable, and can probably find
enough lint from the inside of my pocket to simulate the experience,
but methinks it's easier to simply await clarification by the OP.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
Click to expand...

I would say the bottom end is there, where there is minimum "information" is
coming through but mid to top, where voice content is, is mushy, as I said
like fluff lifting the needle off vinyl.
This is a commercial enterprise so they like to have a coinbox attached to
the music source, whatever the sound acquisition process.

At a previous pub a customer who was a pro sound engineer installed their
system. Worked well and still is used. A 15 inch woofer buried in the
central area of the pub and 4 small speakers around the room. The woofer
gives a strong sense of a sound environment to the whole pub but lack of
volume from the small speakers means people can still speak to one another,
without strain.
Incidently his DI box installation to the room PA was wrong, so live
musiscians rarely used it. There was a mismatch or long lead problem there ,
again a muffled sound if the DI was used
 
Thinking about the fluffy needle business.
Was it lifting the needle or simple damping of high frequency, low energy,
vibrations of the needle , or both?
 
On Sun, 10 Jun 2012 22:22:36 +0100, Gareth Magennis wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization> In this case, it
sounds like too much highs, which would not fit the curve.





I thought it was the other way round in this case, i.e. that the highs
were unintelligible (like fluff around a needle, according to Mr.
Cook).


Gareth.
Click to expand...
I liked your previous suggestion: its being overdriven. Can you turn
down the source, Nigel?
 
"Wond" <gboot.phil@gmx.com> wrote in message
news:jr52iq$2bl$1@dont-email.me...
On Sun, 10 Jun 2012 22:22:36 +0100, Gareth Magennis wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization> In this case, it
sounds like too much highs, which would not fit the curve.





I thought it was the other way round in this case, i.e. that the highs
were unintelligible (like fluff around a needle, according to Mr.
Cook).


Gareth.

I liked your previous suggestion: its being overdriven. Can you turn
down the source, Nigel?
Click to expand...

I saw a demo once where successive amounts of RAM were switched out of the
digital signal path and the sound got rougher and rougher.

Makes me wonder if there's maybe a RAM problem in there somewhere.

Mark Z.
 
"N_Cook" <diverse@tcp.co.uk> wrote in message
news:jr46l2$8m1$1@dont-email.me...
Jeff Liebermann <jeffl@cruzio.com> wrote in message
news:2b7at71f4f82da8252m26lcm5dbu5mm833@4ax.com...
On Sun, 10 Jun 2012 22:22:36 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization
In this case, it sounds like too much highs, which would not fit the
curve.

I thought it was the other way round in this case, i.e. that the highs
were
unintelligible (like fluff around a needle, according to Mr. Cook).
Gareth.

Well, you might be right. It's been so long since I've played a fluff
encrusted record that I don't recall what sounds like. I thought that
it would sound like adding high frequency scratch, but now I'm not
certain. I do have a functional turntable, and can probably find
enough lint from the inside of my pocket to simulate the experience,
but methinks it's easier to simply await clarification by the OP.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558


I would say the bottom end is there, where there is minimum "information"
is
coming through but mid to top, where voice content is, is mushy, as I said
like fluff lifting the needle off vinyl.
This is a commercial enterprise so they like to have a coinbox attached to
the music source, whatever the sound acquisition process.

At a previous pub a customer who was a pro sound engineer installed their
system. Worked well and still is used. A 15 inch woofer buried in the
central area of the pub and 4 small speakers around the room. The woofer
gives a strong sense of a sound environment to the whole pub but lack of
volume from the small speakers means people can still speak to one
another,
without strain.
Incidently his DI box installation to the room PA was wrong, so live
musiscians rarely used it. There was a mismatch or long lead problem there
,
again a muffled sound if the DI was used
Click to expand...

There would have to be something seriously amiss if the sound from a DI was
muffled.
And you would need a seriously long cable to cause these symptoms.


The only possible way I can see this (and possibly your present symptoms)
could be achieved is by using that nasty signal cable which has the inner
conductors coated overall in conductive plastic.
If this thin, black covering is not stripped away from the soldered signal
ends, it can partially short out the connection, and cause all sorts of
weird intemittent problems.


Gareth.
 
This exchange is typical for this and other groups. Yes, it's //always//
right to start with simple suggestions (as I requested for my recent VCR
problems).

But ultimately, you have start getting down and dirty. Western society is
modeled (in part) on Greek culture, but unlike the Greeks, we are not
content to theorize about problems -- only "doing" will solve them. I urge
Mr Cook to ask the pub owner to let him troubleshoot the system. If the
owner won't let him -- then (other than theoretical curiosity) what is the
point of discussing this?

By the way, no one has answered my question about how to remove the
transport board without ripping the VCR to shreds.
 
"William Sommerwerck" <grizzledgeezer@comcast.net> wrote in message
news:jr7g14$gf1$1@dont-email.me...
This exchange is typical for this and other groups. Yes, it's //always//
right to start with simple suggestions (as I requested for my recent VCR
problems).

But ultimately, you have start getting down and dirty. Western society is
modeled (in part) on Greek culture, but unlike the Greeks, we are not
content to theorize about problems -- only "doing" will solve them. I urge
Mr Cook to ask the pub owner to let him troubleshoot the system. If the
owner won't let him -- then (other than theoretical curiosity) what is the
point of discussing this?

By the way, no one has answered my question about how to remove the
transport board without ripping the VCR to shreds.
Click to expand...
The point in discussing this is to educate ourselves by sharing information.

Now, have you ever come across the type of cable I have just described, and
what can happen if you are unaware that the black coating is actually
conductive, or would you rather not know about this kind of thing?



Gareth.
 
Jeff Liebermann <jeffl@cruzio.com> wrote in message
news:2b7at71f4f82da8252m26lcm5dbu5mm833@4ax.com...
On Sun, 10 Jun 2012 22:22:36 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

"Jeff Liebermann" <jeffl@cruzio.com> wrote in message
news:q62at75jtgsrm1nrnhmes3edjpins8sekq@4ax.com...
On Sun, 10 Jun 2012 13:36:55 +0100, "Gareth Magennis"
sound.service@btconnect.com> wrote:

Or that the source is not now clipping a pre-amplifier/plugged into a
phono
pre-amp by mistake?

Nope. That's backwards. The RIAA equalization curve for an amplifier
phono input boosts the lows and attenuates the highs.
http://en.wikipedia.org/wiki/RIAA_equalization
In this case, it sounds like too much highs, which would not fit the
curve.

I thought it was the other way round in this case, i.e. that the highs
were
unintelligible (like fluff around a needle, according to Mr. Cook).
Gareth.

Well, you might be right. It's been so long since I've played a fluff
encrusted record that I don't recall what sounds like. I thought that
it would sound like adding high frequency scratch, but now I'm not
certain. I do have a functional turntable, and can probably find
enough lint from the inside of my pocket to simulate the experience,
but methinks it's easier to simply await clarification by the OP.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
Click to expand...

I would not volunter to put myself there for advising or repairing or
modding - pub "politics". Jukebox bought/leased ? from one company , amp
from another company , wiring and speakers from some previous installation.
 
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