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On Tue, 27 Jan 2004 15:01:36 +0000, Ian Molton wrote:

On Tue, 27 Jan 2004 09:50:32 +0000
"Nick J." wrote:

Correct, but I havent seen a compressed one, ever.

I deal with them on a daily basis.

Out of interest, what is in yours?

At a guess .. .wav files used for alerts etc in Windows s/w ... a
random selection of .wav files in the \windows\media folder of this PC
shows:

16/48 stereo
16/44.1 stereo
16/22.05 stereo
8/11.025 mono

I'm sure that I also have some 24/96 material that's stored as .wav
files

Julian


--
Julian Fowler
julian (at) bellevue-barn (dot) org (dot) uk

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"Stewart Pinkerton" wrote


Of course, the ubiquitous nature of 16-bit recording, and the wide
availabilty of CD-R, does suggest that anyone transcribing their
precious and fragile LPs



Fragile LPs???

Are you kidding? - I lightly caught a DVD+R on the corner of the loading
tray the other day and it was instantly scratched in an arc (OK, looked more
like part of a logarithmic spiral...) from edge to centre! Immediately stone
dead and completely 'invisible' to the computer - wouldn't even play with
'clicks'......

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On Tue, 27 Jan 2004 16:49:49 -0000
"Keith G" wrote:

Are you kidding? - I lightly caught a DVD+R on the corner of the
loading tray the other day and it was instantly scratched in an arc
(OK, looked more like part of a logarithmic spiral...) from edge to
centre! Immediately stone dead and completely 'invisible' to the
computer - wouldn't even play with'clicks'......

you either had a duff one or you did more than just clip it.

you can make a scratch up to 1mm deep and about the same across
(radially) on a CD and it will still play. DVDs are similar.

--
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Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

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On Tue, 27 Jan 2004 16:31:53 +0000
Julian Fowler wrote:

Correct, but I havent seen a compressed one, ever.

I deal with them on a daily basis.

Out of interest, what is in yours?

At a guess .. .wav files used for alerts etc in Windows s/w ... a
random selection of .wav files in the \windows\media folder of this PC
shows:

16/48 stereo
16/44.1 stereo
16/22.05 stereo
8/11.025 mono

that isnt anything to do with compression - you're just quoting
samplerate / resolution / channels.

--
Spyros lair: http://www.mnementh.co.uk/ |||| Maintainer: arm26 linux

Do not meddle in the affairs of Dragons, for you are tasty and good with
ketchup.

One for the Jitterbugs.
 

On Tue, 27 Jan 2004 19:12:05 +0000, Ian Molton wrote:

On Tue, 27 Jan 2004 16:31:53 +0000
Julian Fowler wrote:

Correct, but I havent seen a compressed one, ever.

I deal with them on a daily basis.

Out of interest, what is in yours?

At a guess .. .wav files used for alerts etc in Windows s/w ... a
random selection of .wav files in the \windows\media folder of this PC
shows:

16/48 stereo
16/44.1 stereo
16/22.05 stereo
8/11.025 mono

that isnt anything to do with compression - you're just quoting
samplerate / resolution / channels.

Fair point ... I was responding to the slightly tangential suggestion
that WAV and 44.1/16/stereo are synonymous.

--
Julian Fowler
julian (at) bellevue-barn (dot) org (dot) uk

One for the Jitterbugs.
 

"Ian Molton" wrote in message
...
On Tue, 27 Jan 2004 16:49:49 -0000
"Keith G" wrote:

Are you kidding? - I lightly caught a DVD+R on the corner of the
loading tray the other day and it was instantly scratched in an arc
(OK, looked more like part of a logarithmic spiral...) from edge to
centre! Immediately stone dead and completely 'invisible' to the
computer - wouldn't even play with'clicks'......

you either had a duff one or you did more than just clip it.

you can make a scratch up to 1mm deep and about the same across
(radially) on a CD and it will still play. DVDs are similar.


No, Mr Molton, DVDs are not similar - just stare hard at one and it'll come
up 'Data Error (cyclic redundancy check) or somesuch. I've handled 'digital
disks' since Pontius was a pilot and these DVD Rs and RWs are reet touchy
little things - far more so than CD Rs and RWs, IMO......

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Keith G wrote:

No, Mr Molton, DVDs are not similar - just stare hard at one and
it'll come up 'Data Error (cyclic redundancy check) or somesuch. I've
handled 'digital disks' since Pontius was a pilot and these DVD Rs
and RWs are reet touchy little things - far more so than CD Rs and
RWs, IMO......

Burning on a computer burner? As a matter of idle interest, what brands of
disk have you tried, and are there any that you find better? How about burn
speed?


--
Wally
www.artbywally.com

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On Tue, 27 Jan 2004 13:11:19 +0000, Le Artiste
wrote:

"Stewart Pinkerton" emitted :

Good point. The 'signal in' is, of course, analogue. SoundForge saves WAVs
as 16/44.1 so I guess that's answered my question ain't it?

If you have a soundcard that offers other bit-rates and sample
frequencies, SoundForge will happily record and save at higher (or,
indeed, lower) resolutions.

It's questionable whether a higher sample frequency is worth it. 24
bits certainly are, if recording music with any dynamic range. Maybe
not from vinyl though? What's the practical dynamic range off vinyl?

About 13 bits, from unplayed perfectly clean top-class vinyl.

Of course, for capturing 13bits of information into a computer, 16bit
recording is de rigeur.

No, it's simply convenient. You can certainly use 13-bit to reduce
storage requirements.

I know of *nobody* who captures audio at 13bit.

4... 8... 12... 16... sure!

So what? It's certainly *possible*, just like compressed .wav files
are *possible*, and no doubt it's just as common................

Also, I would argue that beyond the technical
13bit dynamic range limitation that you state, there's a whole bunch
of euphonic stuff going on in bits 14, and below.

You can argue that if you like, it will still be irrelevant........

You should be aware that in a properly dithered 13-bit A/D conversion,
information well below the noise floor will be captured, just as it is
with analogue recording.

So how long is a piece of string? I capture vinyl at 48Khz/20bit.

Thereby completely wasting the 4 LSBs, since 16-bit would be far more
than adequate, as noted above.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

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On Tue, 27 Jan 2004 16:49:49 -0000, "Keith G"
wrote:

"Stewart Pinkerton" wrote

Of course, the ubiquitous nature of 16-bit recording, and the wide
availabilty of CD-R, does suggest that anyone transcribing their
precious and fragile LPs

Fragile LPs???

Are you kidding? - I lightly caught a DVD+R on the corner of the loading
tray the other day and it was instantly scratched in an arc (OK, looked more
like part of a logarithmic spiral...) from edge to centre! Immediately stone
dead and completely 'invisible' to the computer - wouldn't even play with
'clicks'......

No doubt you have the information backed up somewhere else. Try that
with a direct-cut LP..........................
--

Stewart Pinkerton | Music is Art - Audio is Engineering

One for the Jitterbugs.
 

"Ian Molton" wrote in message


On Tue, 27 Jan 2004 08:44:21 -0500
"Arny Krueger" wrote:

The information I provided at the time was very accurate (within
100ths of dB). I performed several before and after tests, and was
meticulous about it.

Dormer, did you document the changes in Spectra that happened between
my last Live! measurements, and yours?

Just a thought here, but unless spectra was *innacurate* before or
after whatever changes you cite, the results should be comparable...

Agreed.

mind you, 100ths of a dB seems a bit 'off' also.

Of course sonically, a few 100ths of a dB don't matter, but it is possible
to measure FR with that kind of precision, and I've done it quite often.
And, there's equipment that is THAT good. Any halfways-decent audio
interface with digital input or output for example, as well as some of the
better analog stuff. Consider this:

http://www.pcavtech.com/soundcards/L....htm#FR_1644-a