Date: Wed, 10 Jan 2001 18:34:04 -0500
From: "J. Coon" [EMAIL PROTECTED]
Subject: MD: Roland UA-30 external Laptop Sound card
It has come to my attention that some people have laptop computers that
they want to connect to a Minidisc recorder. Some of the computers lack
a decent sound card, having only a mic input and no line input.
THe Roland UA-30 Audio Canvas uses the USB and provides and audio
interface for any computer with a USB port.
Here ae some webpages on the UA-30
http://edirol.plands.com/shop/prod-gateway.ddp?itemcode=362166
http://www.allusb.com/products/P10880.html
http://www.cdbm.com/cdbx/cdbx.cgi?product=hw032cart_id=2833959_29958
I didn't see anything on the MD org web page for people with laptops so
I thouhgt I'd send the info the the list.
Jim Coon
I found plenty of helpful info on minidisc.org, including pointers to
the EgoSys U2A and Canopus MD-Port. I now own an MD-Port, and my brother
just
bought an EgoSys U2A. They both seem to do the trick nicely. What kind of
price
can you get on the Roland? The EgoSys goes for around $240, the MD-Port for
around $190.
Date: Wed, 10 Jan 2001 18:44:41 -0500
From: "J. Coon" [EMAIL PROTECTED]
Subject: Re: MD: Sony E500 vs. E700 vs. E900
I think this is a matter of perspective.
Compared to a cassette tape recorder that most people use, it is high
quality, compared to CD it is close to the same, compared to DAT, it may
be middle quality in your mind, but I think the quality is still pretty
high.
- --
Jim Coon
In fact, MD has the potential to outperform even DAT. Internally ATRAC can
have up to 24 bit dynamic range. You can capture extremely low-level
passages
that would just mute a DAT.
Date: 10 Jan 2001 20:09:30 -0500
From: Stainless Steel Rat [EMAIL PROTECTED]
Subject: Re: MD: atrac sharp questions
* Drexel Atkinson CIRT [EMAIL PROTECTED] on Wed, 10 Jan 2001
| Sony and Sharp use different atrac formats.
No, they don't. They use subtlely (some claim not so subtle) different
versions of the ATRAC algorithms. Sony's version numbers are
only relevant to Sony, and Sharp's version numbers are only relelvant to
Sharp. Your
assumption is 100% incorrect. ATRAC is ATRAC is ATRAC.
And before someone says "ATRAC3", note the name change.
Pretty much correct. Something to note: the ATRAC specification has
never changed, but the sophistication of implementations has. The older
versions
all used fixed point arithmetic, because the readily available DSPs were all
fixed point. Newer machines actually use floating point DSPs, at least in
the
home decks. This will have some impact (audible? dunno) on the accuracy of
the
math used to encode or decode the audio signal.
Sony's ATRAC3 software for the PC uses floating point instructions
everywhere.
I suppose Pentiums these days are fast enough that it's not a problem. I'm
tempted to rewrite it with fixed-point math, to see how it changes in speed
and audio quality. (Also note that Sony has no plans to provide ATRAC3
software
for anything besides x86 Windows. I wonder how long it would take me to port
it
back to my 68030 Atari Falcon...)
-- Howard Chu
Chief Architect, Symas Corp. Director, Highland Sun
http://www.symas.com http://highlandsun.com/hyc
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