MD: Read/Write Head Specifications and Measurements

1999-01-03 Thread RJ Kirkland


I was wondering if anyone knows where I can find the specifications for a
MD compatible read/write head. I am looking to build one for an engineering
project.

RJ K
KC2COE
Comp Sci/Eng
U of South Florida
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MD: USB audio input for iMac?

1999-01-03 Thread Stephen Dietz


Is there anything out there that would enable me to input digital (from my
beloved MD player) into my iMac computer? So far, everyone keeps saying
"Just as soon as the Mac OS allows for it..."

Any answers/thoughts on when this might happen?

Stephen
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MD: extended warantee

1999-01-03 Thread Michael Hooker


hi,
i bought a je- 530 from crutchfield, and it came with the offer of a
service contract from sony. 75 bucks, 2 years service, free" tune up "
after a year. seems a little high. i bought my 510 from a chain, and they
sold me a 5 year deal for about the same money. can i get a better contract
somewhere else, and is the sony contract an OK deal??

thanks,
Mike Hooker 
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MD: coupla things

1999-01-03 Thread Jim Gray


60 min discs always cost more, for no apparent reason other than maybe
scarcity.  is there any advantage to a 60 over a 74?  are the tracks
spread out wider for less errors, or are they just crippled 74s?  why
would they exist?

damark (at damark.com) has a Sharp portable for sale for $199 in their
latest catalog, it looks nice.  If I didn't already have a 722, I'd
probably buy it.  Has anyone here used the Sharp MD-MT15?  (Or is it an
old model with earlier ATRAC?)  Just in case anyone is interested...


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MD: Overclocking

1999-01-03 Thread PrinceGaz


Thanks guys,

I'm now running the K6-3/400 at 450mhz (clocked at 4.5x 100 bus) and
it is perfectly stable.  The CPU temp is only a couple of degC higher than
before (now 43 degC).  I can't really notice much difference but well...
I guess its doing something.

Next time (probably a week or so) I'll go for broke and try 500mhz (5x
100 bus).  I don't think it'll like it but its worth a try I guess.  It's quite
obvious the K6-3 is not locked to any clock multiplier so its a case of
how high can the multiplier go?

Cheers,
PrinceGaz -- "if it harms none, do what you will"

Email: [EMAIL PROTECTED]
Website: http://website.lineone.net/~princegaz/
ICQ: 36892193


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MD: Hooking up TWO MDS-PC1's?

1999-01-03 Thread byyoun


Hey folks,

I've had a person ask me if it's possible to hook up TWO MDS-PC1's and
control them via the software as you would be able to with one PC1 and an
S-linked CD deck.  It is (supposedly) possible to do "drag and drop"
recording when using a CD player with S-link connected to the PC1, and this
fellow was wondering if the same was possible if you hooked up two PC1 MD
decks (or, for that matter, any other Sony deck witn Control A1).  Would
really appreciate some info, if anyone has any...

--Brian Youn

IBM Corporation, Austin
Design Systems Environment
Division 7T, Dept. CY8S, 045/3D-084
(External) 512-838-0125, (Tie) 678-0125
e-mail: [EMAIL PROTECTED]
alternate: [EMAIL PROTECTED]


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Re: MD: SB Live Value OEM may not be the same as SB Live Value.

1999-01-03 Thread Alexander Dietrich


Hi,

 with the digital I/O daughter boards.  There is a bank of pins on 
 the right hand side of the board labelled AUD_EXT (usually 12 pins 
 on the value cards, but mine has 40 like the non-value edition SB 
 Live).  Hoontech ships a combo-adaptor with the I/O III that connects 

There is now a new version of the Live! called "1024 Player", which
has a 40 pin connector like the full version and no digital CD
connector. It also has a digital output on the back of the card,
maybe that's how you can identify it.

Alexander - Creative will GPL their drivers, way to go !
-- 
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| e-mail: [EMAIL PROTECTED]  |
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Re: MD: 4.86 gig - 81 hour MP3 portie

1999-01-03 Thread Stainless Steel Rat


-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

* "  nick  " [EMAIL PROTECTED]  on Thu, 04 Nov 1999
| At the least, its a fair competitor to MD, *sort of* making up for sound
| quality and limited storage space. Size-wise, its pretty crap, its the size
| of a mini laptop..

One of which I own (VAIO 505TS).  I *really* would not want to carry around
something like that for portable music.  Heck! even Pioneer's portable DVD
player is smaller.

| At worst, this could partly kill a developing MD market, if publicity goes
| the wrong way..

|   ...if it didn't have the $810 dollar price tag.

And the aforementioned DVD player retails at $999.  At that point give me
DVD-Audio.
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.0.0e (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE4IgS0gl+vIlSVSNkRAloHAKDGeloQ9bodvTQy+/Cs5f7cU+xBTACg+y7n
8hOG+qRczoNYtg3klwZbB9Y=
=TOIm
-END PGP SIGNATURE-

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Minion of Nathan - Nathan says Hi! \ 
PGP Key: at a key server near you!  \ 
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Re: MD: In compression, the encoder rules

1999-01-03 Thread Dan Frakes


"Magic" [EMAIL PROTECTED] wrote:
This is the case with ATRAC, but not with MP3. The power of the system you
are using to play back the MP3 can come into consideration, as can hardware
interpolation on sound cards or in software. If you take an MP3 and play it
back via a system that has a hardware MPEG decoder card in it (assuming you
have it set to handle MP3 decoding) it will sound far better - the card has
dedicated hardware that handles smoothing and frequency boost/cut which will
automatically come into play to compensate for what may have been lost in
MP3 encoding.

I don't disagree completely, but I do disagree somewhat with this. A 
hardware decoder is not *necessarily* better than a software decoder. If 
a software player and an MPEG card use the same decoding/processing 
algorithms, they will sound exactly the same given a fast enough 
processor for the software decoder. I think it's safe to say that given a 
good enough computer/software combo, the key to a good sounding MP3 file 
is in the encoding used.

That said, as someone pointed out, there is something wrong when various 
MP3 players sound different using *no* EQ/processing. Since the MP3 
format is a standard, they *should* all play back the same until you kick 
in the processing. But they don't.
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Re: MD: Sharp 702 EEPROM EEPROB

1999-01-03 Thread Hannes Rohde


[EMAIL PROTECTED] wrote:

 My questions:  Has anyone experienced this problem?  It seems to
 me to be an EEPROM setting problem.  Does anyone know which EEPROM
 settings control the volume settings?  Is there any way to reset
 the EEPROM settings completely?  My warranty is up, so I'm really
 in need of some help.

This are default values from the service manual:

BASS settings:
  BS1_  02h
  BS2_  A4h
  BS3_  C4h

ADJSET settings:
  COK_  A0h
  FAT_  C0h
  TAT_  3Fh
  CAT_  20h
  FAB_  00h

DEQSET settings:
  HQ1_  90h
  HQ2_  90h
  HSG_  11h
  HSO_  FDh
  LQ1_  90h
  LQ2_  90h
  LSG_  11h
  LSO_  00h
  GQ1_  98h
  GQ2_  84h
  GSG_  11h
  GSO_  00h
  GQR_  00h

CTRL__ settings:
  CT0_  48h
  CT1_  E0h
  PWL_  00h
  RC0_  C0h
  RC1_  FEh
  SYC_  A6h
  DR1_  A0h
  DR2_  A6h
  IN1_  D4h
  IN2_  67h
  CTR_  6Dh
  CT2_  14h
  CT3_  03h
  CT4_  64h
  CT5_  74h
  CT6_  08h
  CT7_  00h
  SPM_  00h
  MSL_  80h
  RSL_  00h

The values for Focus, Spin, Track, Sled and Temp are referring to
settings of the optical block and should be left alone...

Note that not all values that differ from this list mean there's
an error. My unit had two different values in the control menu and
did work, though changing them to the default settings did no harm.

Bye and good luck,
  Hannes

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MD: JVC-XRMR70

1999-01-03 Thread Rodney Peterson


Just bought one of these suckers for $ 225.

Good points:

More solid construction than MZ-R55 (My MZ-R55 routinely rejects discs
as unplayable (about 20% of the time), spinning round repeatedly and
annoyingly until TOC Error appears in the display. Reinserting the disc
solves the problem, but still! what a PAIN IN THE ASS!!
More attractive than R55 (close call and a matter of opinion including a
more stylish remote)
Much longer battery life-almost no need ever for the AA battery pack AND
a Lithium Ion battery to boot as opposed to NiMh.
Cooler display both on unit and remote.
A disc that was stopped on track 8 was ejected, reinserted and still
track 8 appeared as the disc starting point, not track 1 as you would
rightly expect.

Bad points:

No dedicated line out (headphone only) and lower power output than
dedicated line out.
No clock and no time/date stamp
64 character input per track only.

Still, a great unit. I may buy one of the newer Sharps just for the
output and the Moji stamp feature. (They still have that feature, don't
they?)

Thanks.

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Re: MD: nicks (I'm getting a bit annoyed)

1999-01-03 Thread Peter Wood


All,

Is it just me, or are a lot of other peeps getting a tad annoyed about
having to keep track of two nicks for everyone-- an email one and
a ICQ one?
Hmmm, tell me about it. Although if they fill in their full name you
can select to display that. The one thing I do get anoyed at is that
people on this list seem to add me to their lists, but they don't tell
me who or what they are (hence I've stopped supplying my ICQ number
out, and if you've got half a brain you can find me using the search
engine).

Hey Gaz, for your information I'm Doc_Z, but you can change to display
Peter Wood in my details section.

Trying to get this back on topic, there was talk about a MiniDisc
community on ICQ being created, did it ever materialise??? If it did
someone (kind ;) please privatly mail me and tell me how to get to it.
;)

P.


--
"We do not ask for money, only knowledge." -- Me.
Peter Wood ([EMAIL PROTECTED]) 
Visit my Sharp 7XX homepage (http://www.wood-soft.co.uk)
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Re: MD: In compression, the encoder rules

1999-01-03 Thread Kade Hansson


At 04:58 PM 11/4/99 +, PAW wrote:

Just trying to decide what this has to do with MD's? Oh yeah ATRAC was
mentioned, I also remember hearing that some units sounded better then
others on play back, but I have no proof for that.

Oh, it was on topic, give me a break. You're the one that mentioned Linux
and Windows software. I was talking about audio decoders in general (and
these are kind of central to the MD application).

That some MD units sound better than others has to do with many factors. It
is my understanding that all hardware ATRAC decoders are capable of doing
perfect reproduction in real time. So any difference must be in the
electronics which generates the analogue signal from the compressed digital
stream and delivers it to your ear. Or the ATRAC encoder which produced the
digital stream (and these do differ in quality with ATRAC version).

That MP3 decoders don't (assuming your evidence is true) is a reflection of
the fact they are imperfectly programmed, and aren't efficient enough to
deliver the stream in real time without sacrificing quality. I doubt any
hardware decoders are in this boat.

But I do [have proof] for the MP3 ;). [which I snipped]

Proof and subjective opinion are different things. :-)

Look, I'm not about to argue, but it is my understanding of the MPEG audio
layer 3 audio format that perfect reproduction of the sound-as-encoded
should be possible, given a reasonable amount of time on fairly baseline
hardware, to do the decoding in software or on a well-constructed hardware
decoder in real-time. That WinAmp sound like crap (taking your word for it)
is probably because the code is inefficient and therefore has to further
reduce the number of frequency components it renders in order to keep up.
But I'm guessing.

-- 
Archer
http://www.geocities.com/SoHo/6413/

End.

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Re: MD: In compression, the encoder rules

1999-01-03 Thread Peter Wood


All,

ATRAC playback and MP3 playback (decoders) are well defined- once you have
a data stream encoded, it will produce the same digital data on playback,
unless you have been screwing with your equalizer. Any differences to the
sound are not because of different ATRAC (or MP3) decoders.
So are you saying that it doesn't matter about the decoder?? Okay
then Attach your PC up to your hifi (+ a good set of speakers
(although it should be a sin to use MP3 on them ;)).

1st play a MP3 in WinAmp (using the Niterain (spl) decoder) and then
use either the new MS Media Player or say (on linux) kmp3.

Soz to say there is a detectable difference, I find the Winamp sounds
more muffled, less clearly defined. Let's make this clear... with no
EQ settings, no plug ins, volume in both players 100% and system set
to 50%, taking the line out of the same sound card.

This is not the case for encoders. Every song can potentially produce an
infinite number of encoded variations. It's the encoder which must pick the
best match it can given the available bitrate. Early ATRACs did a poorer
job at this. Early MP3 encoders, and those written by back-yard boys are
also in the same boat. Ideally, if you are not working to a time limit, you
can usually do a much better job than if you were. But technology is
improving all the time, and these days "smart" real-time encoders work well
enough.
Agreed, encoders can produce a range of results, but I'm saying that
decoders can to. Although it shouldn't be this way.

Just trying to decide what this has to do with MD's? Oh yeah ATRAC was
mentioned, I also remember hearing that some units sounded better then
others on play back, but I have no proof for that. But I do for the
MP3 ;). Why do you think we use kJukeBox for our FM modulator (why
can't we just call it an FM transmitter? ;)

P.
--
"Just what ever you do, don't let go of..." *SPLASH* "...the oars..." -- Rowing 
Instructor.
Peter Wood. ([EMAIL PROTECTED]) - ICQ? UIN - 15779342
IRC? Doc_Z on @#3cr and #ircbar using irc.dal.net:7000 (DALnet IRC Network)
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Re: MD: In compression, the encoder rules

1999-01-03 Thread Ralph Smeets


Well,

I don't know MP3, but one thing is sure:

When you encode you loose information and no decoder will be able to 'retrieve'
this information!!!

So the encoding algorithm is the most important. The decoder can't differ much
for the decoding part. However the output of the decoder may well have a digital
low-pass filter in order to remove decoding attributes. There are many algorithm
for digital low-pass filters. And if your filter has more taps (ie, it looks
further backwards, thus taking more time), it is normaly of higher quality.

Cheers,
Ralph 


[EMAIL PROTECTED] wrote:
 
 All,
 
 ATRAC playback and MP3 playback (decoders) are well defined- once you have
 a data stream encoded, it will produce the same digital data on playback,
 unless you have been screwing with your equalizer. Any differences to the
 sound are not because of different ATRAC (or MP3) decoders.
 So are you saying that it doesn't matter about the decoder?? Okay
 then Attach your PC up to your hifi (+ a good set of speakers
 (although it should be a sin to use MP3 on them ;)).
 
 1st play a MP3 in WinAmp (using the Niterain (spl) decoder) and then
 use either the new MS Media Player or say (on linux) kmp3.
 
 Soz to say there is a detectable difference, I find the Winamp sounds
 more muffled, less clearly defined. Let's make this clear... with no
 EQ settings, no plug ins, volume in both players 100% and system set
 to 50%, taking the line out of the same sound card.
 
 This is not the case for encoders. Every song can potentially produce an
 infinite number of encoded variations. It's the encoder which must pick the
 best match it can given the available bitrate. Early ATRACs did a poorer
 job at this. Early MP3 encoders, and those written by back-yard boys are
 also in the same boat. Ideally, if you are not working to a time limit, you
 can usually do a much better job than if you were. But technology is
 improving all the time, and these days "smart" real-time encoders work well
 enough.
 Agreed, encoders can produce a range of results, but I'm saying that
 decoders can to. Although it shouldn't be this way.
 
 Just trying to decide what this has to do with MD's? Oh yeah ATRAC was
 mentioned, I also remember hearing that some units sounded better then
 others on play back, but I have no proof for that. But I do for the
 MP3 ;). Why do you think we use kJukeBox for our FM modulator (why
 can't we just call it an FM transmitter? ;)
 
 P.
 --
 "Just what ever you do, don't let go of..." *SPLASH* "...the oars..." -- Rowing 
Instructor.
 Peter Wood. ([EMAIL PROTECTED]) - ICQ? UIN - 15779342
 IRC? Doc_Z on @#3cr and #ircbar using irc.dal.net:7000 (DALnet IRC Network)
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-- 
===
Ralph SmeetsFunctional Verification Centre Of Competence -  CMG
Voice:  (+33) (0)4 76 58 44 46   STMicroelectronics
Fax:(+33) (0)4 76 58 40 11   5, chem de la Dhuy
Mobile: (+33) (0)6 82 66 62 70 38240 MEYLAN
E-Mail: [EMAIL PROTECTED]  FRANCE
===
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   something happened that unleashed the powers of our imagination: 
   We learned to talk."
-- Stephen Hawking, later used by Pink Floyd --
===
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Re: MD: Re Memorex Blanks - Quality....NO

1999-01-03 Thread Alexander Dietrich


Hi,

Tim wrote:
 
 I seriously believe that in some cases price equals quality. In this case from
 my past history with Memorex on Tapes and MD's, I'll have to pass on them. They
 just are not good quality. I rank them right on up there with BASF.

Could you give a little more detail on your problems with BASF blanks ?
Was it a mechanical problem or the medium itself ? I just bought a five
pack of BASFs and didn't have any problems yet, apart from the crappy
labels. If there is anything wrong with BASF blanks, I'd stop buying
them in the future.

Regards,
Alexander
-- 
| Alexander Dietrich | Norderstedt, Germany |
| e-mail: [EMAIL PROTECTED]  |
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Re: MD: USB audio input for iMac?

1999-01-03 Thread Benjamin J. Levy


MacOS 9 is supposed to finaly support whatever has been needed for audio
over USB, but I haven't seen any reports of this working and still nothing
new as to products like the Opcode DATport or anything.

It doesn't help with the iMac, but Midiman now makes a digital i/o card for
$130 (cheaper than DATport) which is supposed to have mac drivers.  I
haven't heard of anyone using this either, though.  Oh, it's called the DiO
2448 or something like that.

-B

on 11/5/99 1:57 AM, Stephen Dietz at [EMAIL PROTECTED] wrote:

 
 Is there anything out there that would enable me to input digital (from my
 beloved MD player) into my iMac computer? So far, everyone keeps saying
 "Just as soon as the Mac OS allows for it..."
 
 Any answers/thoughts on when this might happen?
 
 Stephen
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MD: Rec-It Function not in Sony MDS-JB930 anymore?

1999-01-03 Thread Steffen Hung


Hello

I just bought the Sony MDS-JB930 and it's quite nice (especially the
Keyboard-In). Although Sony Germany/Switzerland writes that it does not
have time stamp funcion, it has it!

But... why does it not have the Rec-It-Function (in use with Control A1)
anymore?

Regards

Steffen


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Re: MD: Sony Announces Disc-Based Digital Camcorder

1999-01-03 Thread Alexander Dietrich


 Because the MD Discam camcorder is an expansion of MiniDisc audio
 technology, pre-recorded MD audio discs can also be played back in
 the unit for convenience. Play lists of the artist's name and track

Why only pre-recorded discs ? According to the latest "poll" on md-l,
this feature will hardly ever be used then...

 With an optional Ethernet card, MD Discam connects to a PC so users can
 save JPEG still images to their system's hard drive.

This seems like another useless limitation. If I have digital storage
and a PC interface, I want to copy the whole movie to my PC and not just
still images. Sounds pretty fascinating otherwise.

Alexander
-- 
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| e-mail: [EMAIL PROTECTED]  |
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Re: MD: Re Memorex Blanks - Quality....NO

1999-01-03 Thread Tim Hays Toyota of Concord - 32106


I have gotten 4 BASF discs in on trades, and ALL 3 of them after very little usage
the shutters broke or jammed.


Alexander Dietrich wrote:

 Hi,

 Tim wrote:
 
  I seriously believe that in some cases price equals quality. In this case from
  my past history with Memorex on Tapes and MD's, I'll have to pass on them. They
  just are not good quality. I rank them right on up there with BASF.

 Could you give a little more detail on your problems with BASF blanks ?
 Was it a mechanical problem or the medium itself ? I just bought a five
 pack of BASFs and didn't have any problems yet, apart from the crappy
 labels. If there is anything wrong with BASF blanks, I'd stop buying
 them in the future.

 Regards,
 Alexander
 --
 | Alexander Dietrich | Norderstedt, Germany |
 | e-mail: [EMAIL PROTECTED]  |
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--
Tim
*
Do you trade MD's? Check out my CD list at
http://tinpan.fortunecity.com/burgess/154/index.html


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