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Volume control at the speaker?



 
 
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  #51 (permalink)  
Old August 5th 05, 01:35 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Pooh Bear
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Default Wireless audio distribution?


CJT wrote:

Pooh Bear wrote:

Signal to Noise 91dB (A-weighted)

You know these things have an analog stage, too, right?


And you realise that the signal *originated* in the analogue domain ? Digital *can't* make
the original better - lmao !

Analogue has no trouble going way, way beyond 91dB s/n ( A weighted ). In such a trivial
application the analogue noise should be around - 110dB ( unweighted ) - that's around
-120dB typically A weighted.

To suggest that any analogue circuit is responsible for the poor noise figure is plain
idiotic and shows a basic failure to understand the technology.


THD+N -78dB (A-weighted) (-78dB = .0125%)

http://www.turtlebeach.com/site/prod...tron/specs.asp

I hope you understand why this clearly isn't linear 16 bit. I've never even seen
a manufacturer have the brass neck to A-weight a THD spec before ! Talk


about being desperate.


I see you can't refute the THD issue. Analogue can easily do 0.001% THD ( and better ) - i.e
over ten times better than the Turtle Beach spec *unweighted* ! Possibly 100 times better
unweighted but I've never previously seen a manufacturer so desperate as to quote THD with a
weighting. It just isn't done ! It's a wholly inappropriate thing to use weighting for.

Graham

  #52 (permalink)  
Old August 5th 05, 02:28 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
CJT
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Default Wireless audio distribution?

Jim Thompson wrote:
On Fri, 05 Aug 2005 01:23:19 GMT, CJT wrote:

[snip]
Who wants to walk down the hall to insert a CD when it can be instantly
available on a file server?

[snip]

Some of us have a 300 CD jukebox ;-)

...Jim Thompson


Who wants to walk down the hall to select a CD in the jukebox when it
can be instantly available on a file server?

:-)

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  #53 (permalink)  
Old August 5th 05, 02:36 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Pooh Bear
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Posts: 203
Default Wireless audio distribution?


CJT wrote:

Jim Thompson wrote:
On Fri, 05 Aug 2005 01:23:19 GMT, CJT wrote:

[snip]
Who wants to walk down the hall to insert a CD when it can be instantly
available on a file server?

[snip]

Some of us have a 300 CD jukebox ;-)

...Jim Thompson


Who wants to walk down the hall to select a CD in the jukebox when it
can be instantly available on a file server?


It doesn't hurt to get some exercise you know !

Besides who wants to so nerdy as to run a file server just to listen to music
? You won't get laid that way !

Graham

  #54 (permalink)  
Old August 5th 05, 02:51 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
CJT
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Default Wireless audio distribution?

Pooh Bear wrote:
CJT wrote:

Jim Thompson wrote:
On Fri, 05 Aug 2005 01:23:19 GMT, CJT wrote:

[snip]
Who wants to walk down the hall to insert a CD when it can be instantly
available on a file server?
[snip]

Some of us have a 300 CD jukebox ;-)

...Jim Thompson

Who wants to walk down the hall to select a CD in the jukebox when it
can be instantly available on a file server?


It doesn't hurt to get some exercise you know !

Besides who wants to so nerdy as to run a file server just to listen to music
? You won't get laid that way !


How would _you_ know?

Graham



--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form .
  #55 (permalink)  
Old August 5th 05, 07:24 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Tim Martin
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Default Wireless audio distribution?


"Pooh Bear" wrote in message
...

To suggest that any analogue circuit is responsible for the poor noise

figure is plain
idiotic and shows a basic failure to understand the technology.


The noise figures are for the analog outputs.

Tim


  #56 (permalink)  
Old August 5th 05, 07:40 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Pooh Bear
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Default Wireless audio distribution?


Tim Martin wrote:

"Pooh Bear" wrote in message
...

To suggest that any analogue circuit is responsible for the poor noise

figure is plain
idiotic and shows a basic failure to understand the technology.


The noise figures are for the analog outputs.


I think you're missing the point. I know it actually.

The analogue output noise will be determined by the ADC outouts - and hence
the 'system performance' - *not* the other way round ! I design this kind of
stuff you know ! I know my ****. Any *half competent* analogue line level
output will be capable of 110dB s/n or better

OTOH if you wish to wallow in your ignorance - please be my guest.

Graham

  #57 (permalink)  
Old August 5th 05, 07:42 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Pooh Bear
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Posts: 203
Default Wireless audio distribution?

Pooh Bear wrote:

Tim Martin wrote:

"Pooh Bear" wrote in message
...

To suggest that any analogue circuit is responsible for the poor noise

figure is plain
idiotic and shows a basic failure to understand the technology.


The noise figures are for the analog outputs.


I think you're missing the point. I know it actually.

The analogue output noise will be determined by the ADC outouts


Sorry, I obviously meant the DAC outputs.

Graham

  #58 (permalink)  
Old August 5th 05, 08:05 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Tim Martin
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Posts: 170
Default Wireless audio distribution?


"Pooh Bear" wrote in message
...

Sorry, I obviously meant the DAC outputs.


Sure, but the point is they do not aply to the digital output. You were
saying that the noise figures showed the box was not handing .wav files.

That's wrong; the noise figures show the performance of the D-to-A part of
the product, and are nothing to do with whether it is handling .wav files.

Tim


  #59 (permalink)  
Old August 5th 05, 08:33 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Pooh Bear
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Posts: 203
Default Wireless audio distribution?


Tim Martin wrote:

"Pooh Bear" wrote in message
...

Sorry, I obviously meant the DAC outputs.


Sure, but the point is they do not aply to the digital output. You were
saying that the noise figures showed the box was not handing .wav files.

That's wrong; the noise figures show the performance of the D-to-A part of
the product, and are nothing to do with whether it is handling .wav files.


And you're now talkng gobbledegook.

I don't actually care matey.

I *know* the performance that linear 16 bit pcm can supply and the specs I
quoted from the website were *clearly * not representative of same.

In short, I know you're talking nonsense.

If you think you're smarter than me then please feel free to fool yourself.

Graham

  #60 (permalink)  
Old August 5th 05, 08:46 AM posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical,rec.audio.tech,uk.rec.audio
Joel Kolstad
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Posts: 2
Default Wireless audio distribution?

Hey Pooh Bear,

"Pooh Bear" wrote in message
...
Any *half competent* analogue line level
output will be capable of 110dB s/n or better


I have a suspicion that very little, if any, of the stereo equipment one might
find in, say, Wal*Mart meets this spec! Would you agree?


 




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