RE: MD: DMX

2000-01-17 Thread tommie



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The digital I/O works very good (as far as I can judge). The only negative 
point I have about it, is that it only works unidirectional. In other words;  
you can only use the in OR the out at one time; so no daisy-chaining.
I generally only use A3D, which works excelent ! No problems and especially 
Unreal sounds really good ! Haven't tried EAX yet' no need to use it YET.
SCMS works, but probably not the way you mean; I have not yet been able to 
configure the card to "unlimited" and Terratec doesn't seem to be able to help 
me.
The overall impression of the card; hardware wise it's perfect, but the 
drivers could use A LOT of work. For instance; I can only have one 
simultanious wave-file (or MP3...) playing, while the hardware does support up 
to 32 simultanious wave-files playing. However; I never have had any blue 
screens or whatever. Only the Dig. daughtercard gives me occasional errors; 
the dig.out sometimes needs to be reinitialized. Furthermore; the interface is 
not that good. I was however impressed by the software I got with the card. 
It's very good and there's lots of it.
BUT I have to say; this is one of the best sounding soundcards I have ever 
heard. And the Dig.in/out do work for me. Of you're looking for a relatively 
cheap soundcard with dig.in and out, I'd go with the DMX, but if you're just 
looking for dig.out; the Soundblaster Player 1024 has one build in !
= Original Message From [EMAIL PROTECTED] =
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Does the digital I/O work?
How is good is theAX and A3D compatability? Also does theSCMS work?

And what is your overall impression of the card? Are the drivers godd and
error free?
Thanks
CG


At 02:42 PM 1/14/00 +0100, you wrote:


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Hello Cool Guy (?)
I have had the Terratec DMX for 2-3 months now. What would you like to know 
?

Regards,
Tom Daniels
= Original Message From [EMAIL PROTECTED] =
Hey guys,
I havent been on MD-L for a while but im bak. Great to see some old faces
and  new ones. I've got a question for all of you. have any of you tried
the Terratec Soundsystm DMX. Is it a good card? If anyone can tell me about
their experiences with it, I would greatly appreciate it. Ive seen online
reviews and they dont help very much. I need some real world results.
Thanks again

Cool Guy



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Re: MD: ATRAC-R and Laser Colors

2000-01-17 Thread Ralph Smeets


[EMAIL PROTECTED] wrote:
 
 ATRAC can never surpass CD quality since it stores less information than
 CD-DA. For the same reasons, equal quality is also theoretically
 impossible, and practically impossible without increasing the bit stream
 allowed (24-bits/sample I believe).

I"m not totaly convinced. ATRAC allows 24 bit datawords.

Sampling a signal results in a datasteam of samples. These samples all
together represent a frequency spectrum. The CD bitstream contains all the
frequencies (even the one with an amplitude of 0!).
ATRAC try's to trow away the frequencies that are inhearable. (Those who're
0 for instance!!!).
So if you have a clear digital signal without noise and just a few frequencies
(less then one fifth of the total frequencies), ATRAC will store this signal
with the same or even higher qualitly as oposed to CD.

I can hear people thinking, ATRAC will allways compress. That's correct, but
remember that in the digital domain, the value '0' is still a value!

Cheers,
Ralph

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Voice:  (+33) (0)4 76 58 44 46   STMicroelectronics
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Re: MD: optical cords! Yes, there can be a difference.

2000-01-17 Thread Ralph Smeets



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Hi Grover,

You're making the same errors as I made once 

(1) The optical cables used for TosLink aren't fiber optic cables. They use a
light conducting plastic.
(2) The supported frequency is about 6Mbit/sec. Fiber optic connections in data
and
telecomunication (like an FDDI backbone) go beyond 100 Mbit/sec.
(3) The length of the cable... TosLink is in most cases shorter than 2 meters.
In telecomunications, optical connections are usual longer than 100 meters (
The limit for CAT5).

Cheers,
Ralph - You can't compare apples and oranges (and both are fruits!)


[EMAIL PROTECTED] wrote:
 
 There can indeed be differences in fiber optic cables. The question is
 whether or not these differences will affect the sound. (I worked in the
 telecommunications and broadacst industries for many years teaching, amongst
 other things, fiberoptics.)
 
 The differences between "quality" and lesser cables will usually be
 mechanical, but this is not limited to quantification of strength. The
 problem with cables of poor quality may be their alignment within the
 connector housing. If the cables are misaligned, then the level of optical
 signal will go down. At some point, when the received signal is attenuated
 far enough, the bit error rate (BER) of the signal begins to increase and
 artifacts begin to show up in the recovered signal. Exactly what the
 receiving device does with digital signals in which there is a significant
 BER, depends upon the digital circuitry within the device.
 
 Another issue is that the fibre simply does not make a close coupling with
 the receiving diode because it is too far back in the housing. One of the
 demonstrations I used was to slowly attenuate the optical signal by pulling
 the cable out and watching the BER meter, at the same as listening to the
 recovered audio. Indeed, at some point the audio will become distorted and
 eventually disappear.
 
 Now will this in reality affect your audio signal? Attenuation of the
 optical signal due to misalignment or poor coupling might be a problem, but
 at the distances involved in out systems, there is plenty of overhead and it
 shouldn't have any affect. Additionally we are talking about our multimode
 optical cable, and alignment is simply not as critical as with the
 long-distance, high-bandwidth singlemode cables that are used in the
 broadcast and telecom industries.
 
 If you are really anal about all of this, then run this test: play through
 the optical cable and listen carefully as you slowly pull the optical
 connector (either end will do) out of the receptacle. You will probably be
 able to get a tenth of an inch out before you begin to lose the signal,
 maybe more. If you are getting a signal when you start this little test and
 you can move the connector out even a little and still get a signal, then
 you have enough optical power getting to the receiver.
 
 If you are really, really concerned, then you can always clean the ends of
 the cable with denatured alcohol. (Send pictures - I'd like a good laugh.)
 
 What this all really means is that you shouldn't worry about it. Enjoy the
 music.
 
 Iechyd da (that's "good health" in Welsh),
 
 Grover Cleveland
 www.llareggub.com
 
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Voice:  (+33) (0)4 76 58 44 46   STMicroelectronics
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Re: MD: Odp: Odp: ATRAC-R and Laser Colors

2000-01-17 Thread Ralph Smeets


[EMAIL PROTECTED] wrote:
 
 Hi,
 
  But I have yet to find speakers that can reproduce a 1Hz tone, so why
 record
  it if it can't be reproduced. Very few speakers even go as low aas 20Hz,
 so
  that isn't being reproduced much either!
 
 well, right - I forgot about the good speakers thing.
 I've got a pair of good speakers(tannoy to be more exact), but the amplifier
 is a disaster but still I was able to actually see a 10Hz wave produced by
 my good old Gravis Ultrasound MAX card. :)

I'm sure you're hearing the harmonics. Or do you have a spectrum analyzer
next to your PC


Cheers,
Ralph


-- 
===
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
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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: quality of optical cables

2000-01-17 Thread Ralph Smeets


[EMAIL PROTECTED] wrote:

  My computer, which
  transmits loads of data down SCSI, IDE, even parallel and phone cables,
 gets
  by fine with plain old wires.

Well, for IDE (in UDMA/66 mode) it's 66Mhz over a 60 cm long cable. SCSI
supports even higher frequencies over an even longer cable. Unless you
start using fire-wire or other hot technology disk applications, you'll
never see optical connections inside a PC.

Compared to TosLink, TosLink supports bit rates up to 6 Mbit/second. This
signal is modulated using light. Using a red LED with a wavelength of
650nm, the signal while 'bounce' about one and a half milion times in a 1 
meter cable before ariving at the end.

A coaxial connection at 6Mbit using a 6Mhz carier, has a wavelenght of
about 50 meters. Ie, you can use a two wire connection up to 12.5 meters
before you'll get strange artifacts in the signal due to the reflections
and termination of the signal itself! THe only reason to use coax in this
application is for the better shielding!

Cheers,
Ralph
-- 
===
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
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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: Hi-Space Disc Problems?

2000-01-17 Thread Scott, Tony



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I think we had a similar discussion a while back, but it was specifically
about problems with some Hi Space discs, but also TDK and few others when
used with Sony 520s and 920s.  I seem to remember that we worked out that
some discs when new and unused had a slightly stiffer shutter than the
mechanism in these machines could cope with and rejected them with a C13
error the first time you tried to use them.  Giving the shutter a good
jiggle before insertion seemed to loosen the shutter and remedy the problem
- the discs caused no problems after that.  This is the only problem I've
experienced with discs so far and it is easily remedied.

 --
 From: metatron[SMTP:[EMAIL PROTECTED]]
 Reply To: [EMAIL PROTECTED]
 Sent: 14 January 2000 12:02
 To:   [EMAIL PROTECTED]
 Subject:  RE: MD: Hi-Space Disc Problems?
 
 
 Based on postings over the months to this list, and from my own
 experience,
 it seems that most people experience a glitch with a disc from time to
 time,
 but there isn't any consistency with the brand of disc that gives the
 problem, be it cheap or expensive [with maybe the exception of Memorex,
 though I'm sure lots of people have no problems with them]. My Sony JE520
 doesn't like some TDK  JVC discs, which need an extra big push to get
 them
 to load, whereas others with the same machine swear by TDK and have
 encountered something similar with Sony discs. I would say that there are
 idiosyncrasies in the tolerances of each recorder, and that by and large
 the
 discs themselves are usually OK. I would stick with the cheapest / most
 attractive that work for your machine.
 
 John
 
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Re: MD: Sharp MD-MT831 docking cradle comments?

2000-01-17 Thread Ralph Smeets


[EMAIL PROTECTED] wrote:
 
 Hi Jan,
 
 Thanks for the reply.
 
 Jan Frode Hansen [EMAIL PROTECTED] writes:
 
  is the docking cradle really worth having... no, not really imo.
  It sits on the desk next to my computer here, and whenever I charge the
  MT831 I use it of course. What does that save you? Connecting a cable...
 
  It has never made a lot of sense to me why Sharp decided on making the
  docking cradle, one would think it only increases the total cost of the
  unit. It is rather silly I think.
 
  BTW, why do you ask?
 
 Well, because it seemed like a good idea for those who are always
 taking their machine out in the field, and I wondered if it might
 influence buying decisions. I suppose if you could also get your audio
 connections docked at the same time, that would be convenient. But
 Sony already has that (the MZ-R5ST) and it doesn't seem wildly
 popular, so I guess it's not a big factor.
 
 Rick

Isn't the MZ-R5ST to expensive?

Cheers,
Ralph
-- 
===
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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: quality of optical cables

2000-01-17 Thread Martin Schiff


Ralph,

It may bounce a lot, but Toslink works just fine with very long cables. I
have a 10 meter cable that I use to connect my CD carousel in another room
to my MD deck, and it works great. Not a single problem.

-- Martin

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Ralph Smeets

Compared to TosLink, TosLink supports bit rates up to 6 Mbit/second. This
signal is modulated using light. Using a red LED with a wavelength of
650nm, the signal while 'bounce' about one and a half milion times in a 1
meter cable before ariving at the end.

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RE: MD: quality of optical cables

2000-01-17 Thread Simon Barnes


Magic wrote:

  Is there really much difference
  between optical and co-ax digital connections in home audio use?
 
 Coax is a lot cheaper... other than that... no.
 
It ain't necessarily so. I can put a case for optical connections being
(potentially) both cheaper and more reliable. The fibre itself is some kind
of acrylic, with probably a PVC sleeve. It can be bought for pence a metre
in bulk, and since it contains no copper is probably cheaper and easier to
make than a coax. There is no soldering required, the fibre just pushes into
the connector, and it can be cut with wirecutters, no need for optical
polishing. The connectors are simple plastic mouldings, with no particular
requirement for accurate alignment, and since it suffices to stuff the bare
fibre into the hole, and hold it in place with a piece of gum, provided you
can keep fluff out of the connector, the connection should be more reliable
than a pair of (allegedly) corrosion-prone metal/metal contacts.

The fact that optical connections currently attact a price premium is an
artifact of their newness.

simon


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RE: MD: ATRAC-R and Laser Colors

2000-01-17 Thread Simon Barnes


Andrew wrote:

 (hence, "wavelet"), and can reproduce the signal almost *exactly*
 by compositing the wavelets at playback.  This breaks the bounds of 
 Nyquist's rule, which states that you must sample at double the highest
 frequency you wish to represent... because you're no longer sampling.
 
I suspect this is nonsense. (sorry Andrew) You do have to sample the data to
get it into the digital domain, before you can process it. (Unless you are
going to do an ANALOG wavelet analysis - please supply diagrams)

 There are a few major drawbacks to wavelet compression... mainly the 
 computational workhorsing needed, as well as the fact that the compression
 is unpredictable -- different waveforms will compress to different
 degrees,
 solely based on their structural composition.  Also, it's not 100% real-
 time.  You have to look at the signal over time to be able to give a
 wavelet
 representation.
 
I work with wavelet video compression, and that IS quasi real-time, ie you
have to operate on a whole video field at a time, so there is an effective
one field delay. I haven't got round to trying wavelets on audio yet, but
you would have to select some sample window size ( I think 20mS might be
appropriate ), so there will be a short delay. The computational demands are
probably similar to ATRAC. I suspect that wavelets will not be as good as
ATRAC for any particular data rate, as they seem to me less amenable to
psychoacoustic coding.

simon
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RE: MD: ATRAC-R and Laser Colors

2000-01-17 Thread Simon Barnes


Magic wrote:

 If I take a sound file which is 44.1kHz in 16bit, the same as CD, and ZIP
 it
 with WinZIP, it occupies less space. If I did this with all the music from
 one of my CDs, I could probably copy those ZIP files onto another CD and
 fit
 two CDs worth of music onto it (although a normal CD player couldn't play
 it). I now have twice as much information stored on the same capacity
 disc.
 
I tried this on a partial CD image of 503 Mb, and it zipped to 481 Mb. Music
data is pseudo random (as far as WinZip is concerned) so it does not accept
much lossless compression.

And, in reply to:

 Compression, yes runlength encoding and huffman codes can
be used to
reduce
 the size of a the file. But they do not alter the bit
rate. In order to
 read your Zipped files you must first decompress them,
then decode them,
 then play them.

(I'm not sure what this means)

Wrong. ZIP files do not necessarily have to be decompresed before
you can
access their contents, it is possible to access the contents
directly if you
store the decoding table in RAM and use this as a reference for the
data you
read from the file.

Wrong (sorry). While it's correct to say that you don't have to decompress
the ZIP into a file, you do have to reverse the compression algorithm to
extract the data.

simon


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Re: MD: quality of optical cables

2000-01-17 Thread Ralph Smeets


[EMAIL PROTECTED] wrote:
 
 Ralph,
 
 It may bounce a lot, but Toslink works just fine with very long cables. I
 have a 10 meter cable that I use to connect my CD carousel in another room
 to my MD deck, and it works great. Not a single problem.
 
 -- Martin

Correct, I was just trying to point out that the optical connection doesn't
give a better connection!

Cheers,
Ralph
--
===
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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MD: cheap minidiscs - Sony 5 packs $9.99

2000-01-17 Thread David Sowa


Hello MDList,

This weeks BestBuy ad has Sony 5 packs listed for $9.99.

This isn't the best price ever for disks but is a very nice price
for being able to drop in and pick them up.

Regards,

David Sowa



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Re: MD: quality of optical cables

2000-01-17 Thread PrinceGaz


From: "Richard Wright" [EMAIL PROTECTED]
 I stand corrected. The SPDIF signal is indeed different.
 Ok everybody - forget the experiment (but do send pictures of your
 gold-plated optical connectors).

 I'll try and get some for you all to laugh at :-)
 I think they're made by Van Damme who make high quality cables and
 connectors, so god knows what they're doing making gold plated optical leads!!
 Grover

Perhaps the gold plated plug reduces spurious optical reflections between the
lead and the LED / photodiode.  I bet a hi-fi journalist would be able to "explain"
how the gold-plated plugs produce superior sound quality.  Such knowledge
of optics is beyond me or anyone with a scientific background however :-)

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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RE: MD: $2.00 Blank MD's at Best Buy

2000-01-17 Thread Scott A. Cabler


I came across a 20 pack of Tdk MDs for 30 dollars at Circuit City here in
Tulsa.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Eric Woudenberg
Sent: Monday, January 17, 2000 6:46 AM
To: Bruce Yarbor
Cc: [EMAIL PROTECTED]
Subject: Re: MD: $2.00 Blank MD's at Best Buy



Thanks Bruce, I'm forwarding your note to the MD mailing list. -Rick

I see in today's paper that Best Buy is advertising their 5 pack of Sony =
Mini Discs for $9.99.
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MD: Wavelets (was Re: ATRAC-R and Laser Colors)

2000-01-17 Thread Andrew Hobgood


 I suspect this is nonsense. (sorry Andrew) You do have to sample the data to
 get it into the digital domain, before you can process it. (Unless you are
 going to do an ANALOG wavelet analysis - please supply diagrams)

IANAsignalengineer, but .. =)  Yes, that might be total BS.  I was under the
impression from long ago when I was reading about initial research in wavelet
compression that you sample, then use the samples to form a wavelet 
composition that represents the sampled data, then send the parameters of the
wavelet.

For instance, a 32 bit signal at 96kHz is more than neccesary to fully 
represent an analog audio signal with no loss.  So, if we sample 1s of
that audio, we use up 4 bytes * 1 channel * 96000 Hz = 384000 bytes/sec.

Now, if through wavelet analysis, it's found that the signal can be 
represented by the following sinusoids superposed:

3 sin (.5t - .2)
-2 sin (1.3t + .4)
4 sin (-2.5t - .83)

For that one second of audio, those sinusoids accurately represent the 
sampled data.  Now, sending the data that represents those sinusoids is as
easy as sending a 32 bit IEEE floating point number for each of the 3 
parameters per sinusoid, so --- for simple sinusoids, that relatively simple
signal can be represented by only 9 paramters * 4 bytes = 36 bytes for an
accurate representation of 384,000 bytes worth of sample.  Nyquist's law
effectively restricts sampled audio to 1/2 the sample rate, giving a 
certain minimum amount of information neccesary for transfer to transmit
that signal from one point to the other.  This sort of compression breaks
the bounds of Nyquist's law in transferring, though it still limits the
actual sampling of the audio.

Am I misinterpreting the technique of wavelet compression, such that the
model and calculations which I've provided here are inaccurate, baseless,
or just plain BS?  If so, how does wavelet compression actually achieve 
what it does?

 appropriate ), so there will be a short delay. The computational demands are
 probably similar to ATRAC. I suspect that wavelets will not be as good as
 ATRAC for any particular data rate, as they seem to me less amenable to
 psychoacoustic coding.

Very interesting... I'm very interested in wavelet compression (as I'm sure
many others on this list might be also) ... do you have any good references
for the algorithms and mathematics behind it all?

Thanks!

/Andrew

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MD: Sharp 722 DEFECT! message

2000-01-17 Thread Terry Kirch


The last two times I've used my 722 to record live music I've seen this
"problem" occur.

During the recording I see a "DEFECT!" message displayed. This occurs over
and over again
while recording. On some occaions its put a track mark after displaying the
message. I then end up with
a large amount of unwanted track marks on the disk. It does not seem to
effect the sound on the MD.
When I playback the MD the audio seems fine. Anyone know what's going on.
Any help would be appreciated.

Thanks,
-Terry

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RE: MD: cheap minidiscs - Sony 5 packs $9.99

2000-01-17 Thread Phil Reaston



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  ===

I just visited my local Best Buy (Boca Raton, FL) to get some of the Sony
MDs. I noticed that they have the Sony MZR55 there marked at $250 - it was
marked $350 a week or so ago (and is $350 in their Jan 16 ad).

Phil Reaston
mailto:[EMAIL PROTECTED]

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
 Behalf Of David Sowa
 Sent: Monday, January 17, 2000 11:14 AM
 To: mindisk list
 Subject: MD: cheap minidiscs - Sony 5 packs $9.99



 Hello MDList,

 This weeks BestBuy ad has Sony 5 packs listed for $9.99.

 This isn't the best price ever for disks but is a very nice price
 for being able to drop in and pick them up.

 Regards,

 David Sowa



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Re: MD: Macintosh SPDIF interface solved

2000-01-17 Thread P. Grover Cleveland


After a LOT of surfing I found the answer to my need for a digital I/O for
the Mac. Midiman has a Delta 24/96 PCI card with Mac drivers which I bought
for $209 from Soundchaser.com

It has coax and optical I/O and an audio output. Drivers for the Mac are
available from the Midiman website.

Thanks to all who helped me during the initial phses of this quest.

Iechyd da,

Grover Cleveland

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RE: MD: quality of optical cables

2000-01-17 Thread Martin Schiff


Sound Professionals has 5 meter Toslink cables for $22.99 each and 10 meter
for $32.99.

-- Martin

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of [EMAIL PROTECTED]

I have found optical cable at much lower prices than you stated.  I have two
5m runs that I bought for $52.25 including terminations, shipping, and a
credit card surcharge.

CJ

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MD: DMX Review

2000-01-17 Thread Edward Nigma


Ok guys got my hands on a DMX today. I have to tell you the card is
awesome. Music is clean, and hiss free.The surround sound is awesome. I
hoked it up to my home theater sysytem and was blown away. The drivers were
upto date, and everything was bug free. And A3d and EAX compatibility
simply rocks. I recorded some MP3s onto my MZR50, and everything went along
without a hitch. My only peeve is that the soundcard only likes to be at
IRQ 5, and so i had toremove that from the Plug and Play Bios's IRQ pool.
other, than that its great. 

BTW: Tmmie update your divers and see, they might resolve some bugs. I
really dont care about fulll duplex digital I/O. 

CG



"To acquire knowledge, one must study; but to acquire 
wisdom, one must observe."
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Re: MD: quality of optical cables

2000-01-17 Thread Magic


From: [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, January 17, 2000 4:44 PM
Subject: RE: MD: quality of optical cables

I have found optical cable at much lower prices than you stated.  I have
two
5m runs that I bought for $52.25 including terminations, shipping, and a
credit card surcharge.

CJ

But you don't live in "Rip Off Britain" .

Magic
--
"Creativity is more a birthright than an acquisition, and the power of sound
is wisdom and understanding applied to the power of vibration."

Location : Portsmouth, England, UK
Homepage : http://www.mattnet.freeserve.co.uk
EMail : [EMAIL PROTECTED]


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Re: MD: quality of optical cables

2000-01-17 Thread Magic


- Original Message -
From: Richard Wright [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, January 17, 2000 10:40 PM
Subject: RE: MD: quality of optical cables


 Yeah, I can do 5m Toslink-Toslink for 20 UKPounds plus 2 UKPounds PP
 (including VAT). Branded ones (like Sony etc.) are just a total rip off.

 Wrighty


How much for 8m ?

Magic
--
"Creativity is more a birthright than an acquisition, and the power of sound
is wisdom and understanding applied to the power of vibration."

Location : Portsmouth, England, UK
Homepage : http://www.mattnet.freeserve.co.uk
EMail : [EMAIL PROTECTED]


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RE: MD: Ultra-low Bass (was: Odp: ATRAC-R and Laser Colors)

2000-01-17 Thread Rick Pali


 The Cambridge SoundWorks "BassCube 8" (which I recently
 purchased) has a bottom end of 80Hz.  Explosions make it
 rumble quite a bit, but music barely makes it twitch.

The sub on my main system is set to cross over at 60Hz and it does a heck of
a lot more than twitch. I know that one of my CDROM drives, when connected
to the sound card via the regular internal connect, severely rolls off the
bottom end. I don't know if that's by design (so as not to damage small
computer speakers) or just a really poor DAC in the drive. The other CDROM
drives I have sound *much* better.

I'm looking to get a proper sub for my computer system soon as well.

Rick.
-+---
[EMAIL PROTECTED]
http://www.alienshore.com/

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MD: OT - UK electricity supply

2000-01-17 Thread Ray West


Hi All,

There was some discussion a few days ago on the voltage of UK electricity supply
system. If the following has been said before, then I apologize for taking the
bandwidth.

The UK, as from the early 1990's, has a declared nominal voltage of 230V with a
tolerance of +10% and -6%. Prior to that, it was 240V +/- 6%. If you are in the
UK, then your supply voltage should be somewhere between 216V and 253V. The
actual values will vary depending on where you are located and the time of day.
Although, in principle it was intended to eventually bring in a declared 220V,
to align more closely with Europe, there are no immediate plans for this. The
foregoing has been confirmed with OFFGEM, the official regulator's office. If
you're in the UK, and your supply voltage is outside the limits, then in the
first instance contact your electricity supplier. 

Many new power supply units, for computers and audio equipment etc. used
switched mode techniques, and the actual operational supply voltage for any one
of these units can have a very wide range, 100V to 250V for instance. However,
if you have an older power supply unit incorporating an iron cored transformer,
rectifier, linear regulators, etc. then be aware of the frequency requirements
if purchasing a 100 to 230V step up/step down transformer. Much of the world's
electricty supply systems run at 60 Hz, but the UK runs at 50 Hz. If you use a
transformer designed for 60 Hz systems, then it is likely to have less iron than
an equivalent transformer designed for 50 Hz. Its impedance will therefore be
lower, and it will get very hot if run on 50 Hz, and its useful life may not be
very long.

The UK electricity supply meter measures kilowatt/hrs. The watt is 'a measure of
the rate of doing work'. When I was at school we had experiments with churning
paddles in tanks of water, and passing dc current through heating coils, etc.
associated with this. Without going into ac electrical circuit theory for an
explanation, I can assure you that you will not get any electrical power for
free by using capacitors or inductors to shift the current out of phase with the
voltage. Larger industrial loads, which by their nature can be highly inductive,
are metered and billed on a different tariff, since the supply authority cables
and other equipment have to be able to carry the proportionally heavier current
that this requires, as compared with a load of the same power, but with voltage
and current in-phase. 

Hope this helps,

Best wishes,

Ray
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Re: MD: Ultra-low Bass (was: Odp: ATRAC-R and Laser Colors)

2000-01-17 Thread Stainless Steel Rat


* "Rick Pali" [EMAIL PROTECTED]  on Mon, 17 Jan 2000
| That's bizarre, certainly 200Hz it well above the threshold where one can
| tell which direction the sound is coming from!

Those higher frequency response settings are for when your speakers do not
have subwoofers of their own.  Ie, the kind of smallish two-way speakers
with tweeter and mid-range cones.  My set has an unpowered subwoofer for
the front satellite channels, so I have the super subwoofer tuned as low as
it can go (which is why music barely makes it twitch).  But even as high as
200Hz you are going to have a difficult time localizing the source.
-- 
Rat [EMAIL PROTECTED]\ Caution: Happy Fun Ball may suddenly
Minion of Nathan - Nathan says Hi! \ accelerate to dangerous speeds.
PGP Key: at a key server near you!  \ 
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Re: MD: quality of optical cables

2000-01-17 Thread Stainless Steel Rat


* Ralph Smeets [EMAIL PROTECTED]  on Mon, 17 Jan 2000
| Well, for IDE (in UDMA/66 mode) it's 66Mhz over a 60 cm long cable. SCSI
| supports even higher frequencies over an even longer cable. Unless you
| start using fire-wire or other hot technology disk applications, you'll
| never see optical connections inside a PC.

Fibre channel (FDDI) is *the* way to hook up high capacity, high speed RAID
configurations.  Anything less, even the current generation ultra fast/wide
SCSI is pathetically slow by comparison.
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Rat [EMAIL PROTECTED]\ Do not taunt Happy Fun Ball.
Minion of Nathan - Nathan says Hi! \ 
PGP Key: at a key server near you!  \ 
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MD: Sanyo MDR-4

2000-01-17 Thread David Fincher


 === The original message was multipart MIME===
 === All non-text parts (attachments) have been removed ===

I know some of you have been interested in getting your hands on a Sanyo
MDR-4 car minidisc player.  I have one at auction on ebay right now.
Head on over and start bidding if you're interested!  I will ship
worldwide at buyer's expense (through USPS or UPS).

 http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItemitem=240426392

Thanks.
David Fincher

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MD: Coax - Optical Convertor (and vise versa)

2000-01-17 Thread Lynch, Jason JD


Hey everyone,

I was wondering if anyone can give me some places where i could go to buy some sort of 
coax - optical convertor (as well as optical back to coax). 
I think i read somewhere that they are called a TOSLINK Transmitter Module (is that 
right?)

I'm wanting it to hook up my MZ-R91 to my PC.
Early last year i bought the SB Live! Audio pack which includes the digital i/o board 
which has the coax in and outs (i guess thats what they are... i haven't used it yet).
I was going to buy the hoontech SB IO III card but i thought that if i can get some 
sort of converter for a cheaper price then i should go that route.

Can anyone offer any help and/or guidance?
As i'm in Australia i'll probably be looking at buying online unless i can get one in 
Oz somewhere, or can find a nice person overseas to pick one up for me:)

I look forward to hearing your responces.
Thanks in advance.
.jason


EOM 

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Re: MD: Sanyo MDR-4

2000-01-17 Thread Shawn R. Lin


David Fincher wrote:
 
 I know some of you have been interested in getting your hands on a Sanyo
 MDR-4 car minidisc player.  I have one at auction on ebay right now.
 Head on over and start bidding if you're interested!  I will ship
 worldwide at buyer's expense (through USPS or UPS).
 
  http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItemitem=240426392

I noticed your auction states that you're in Missouri.
Did you buy it in Missouri?  If so, where???

-- 
Shawn Lin
http://www2.cybercities.com/g/gmwbodycars/
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