Re: [slim] I can hear text scrolling on the display

2007-11-16 Thread mecouc

It's connected using homeplug, which should be effectively the same as
ethernet..because it is once out of the homeplug adapter. But I can
test with a cat-5 cable straight to the router.. I'll report back!


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Re: [slim] I can hear text scrolling on the display

2007-11-16 Thread seanadams

I think it's actually coming from the 802.11 traffic, not the display.
Can you test using ethernet?


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Re: [slim] I can hear text scrolling on the display

2007-11-16 Thread JJZolx

Do you hear it if the display brightness is turned all the way down to
off?

Do you hear it if you use a different screen saver that isn't
constantly updated?


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Jim

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[slim] I can hear text scrolling on the display

2007-11-16 Thread mecouc

I've had an SB3 for ages, and I think it's always done this but I've
never bothered to work out what's going on until today.

I can hear a quiet crackling from the speakers which is clearly caused
by the squeezebox display updating: it's repetitive and in time with
the scrolling speed. When the scrolling stops, so does the noise, and
it continues again when the scrolling does. There are bursts of noise
when I pause and restart music as the display changes.

It's quite quiet and not a killer problem, but it does annoy me a bit,
particularly when playing quiet tracks quietly. I tried moving the SB
away from the amp and that doesn't help.

Oddly, the noises don't get louder as I turn up the volume on the amp
(with music paused). Indeed, when the volume gets to 50% the noises
disappear altogether, though by then there is the beginnings of a
slight background hum from the electronics (in normal listening the
volume knob never goes much past 25% of the way round - maybe that
indicates the amp and speakers are mismatched? Or maybe theyr'e just
loud).

Any suggestions? Thanks..

It's an Arcam alpha 3 amplifier if that makes any difference, with
Monitor Audio speakers with no model name or number visible.


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Re: [slim] I can hear text scrolling on the display

2007-11-16 Thread seanadams

mecouc;243229 Wrote: 
 It's connected using homeplug, which should be effectively the same as
 ethernet..because it is once out of the homeplug adapter. But I can
 test with a cat-5 cable straight to the router.. I'll report back!
 
 And I can't tell you how much I appreciate receiving help straight from
 the Big Boss.. thanks.

Homeplug signalling is not at all like ethernet, but what's more
significant here that it shares the same power line that also feeds
your other equipment. Interestingly, this subject came up a few weeks
ago and I argued why homeplug would be _unlikely_ to cause audible
problems. But there's a first for everything.

It would be very interesting to find it can in fact be picked up by an
amplifier. We've seen this with wireless, where headphone amps can pick
up 802.11 signals from the air, using the headphone cable as an antenna
- the audio amplifier chip can inadvertently act like a radio.


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