Re: MD: Future of minidiscs

2000-08-21 Thread las


"The 831 adds a layer of sparkly, burbling high frequencies to quiet
 passages and high frequencies .. in fact, if you record anything with
 a slight amount of background noise onto the 831 the background noise
 just sounds crazy and artificial like a load of bubbles bursting".

It sounds to me like someone switched the version of ATRAC normally used in a
Sharp 831 for version one.  Yes I'm quite sure that is what must have
happenedG.


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Re: MD: Future of minidiscs

2000-08-21 Thread PrinceGaz


From: "las" [EMAIL PROTECTED]
 "The 831 adds a layer of sparkly, burbling high frequencies to quiet
  passages and high frequencies .. in fact, if you record anything with
  a slight amount of background noise onto the 831 the background noise
  just sounds crazy and artificial like a load of bubbles bursting".

 It sounds to me like someone switched the version of ATRAC normally used in a
 Sharp 831 for version one.  Yes I'm quite sure that is what must have
 happenedG.

Actually that is exactly how ATRAC 1 was described as sounding by quite a
few peeps, maybe Sharp decided to go "back to basics" with the 831 :-)

PrinceGaz.


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Re: MD: Future of minidiscs

2000-08-20 Thread Dave Hooper


- Original Message -
From: "Dan Frakes" [EMAIL PROTECTED]

 OK, but the problem is that all of the above is a CD vs. MD sound
 comparison. I agree that MD doesn't sound as good as CD. However, your
 original claim, to which I was responding, was that high-bitrate MP3
 sounds better than MD.

Well, what I wrote was actually directly in response to someone else's claim
that "MD always sounds better than MP3s".  I was merely describing a simple
test that compares CD vs. MD because, essentially, when I rip MP3s I don't
get the strange sparkly burbling sounds.
If you want to round out the experiment a bit more, then just do this
instead:

.  Get a digital optical output card for your soundcard
.  Play an audio CD in your CD-Rom drive thru the soundcard (using digitial
SPDIF connector from CD-ROM to soundcard) and out thru the optical output
and monitor that on your Sharp831 using Rec-Pause mode
.  Record the audio CD from the second step on the Sharp831 (just take it
out of Rec-Pause)
.  Play back the MD you just created
.  Encode the CD as MP3 using what you believe to be a high-quality encoder
(e.g. 320kbps encoded using LAME or Fraunhofer)
.  Play this MP3 thru your soundcard and out thru the optical output and
monitor THAT on your '831 in Rec-Pause.


The MD sounds the worst of the bunch because it adds the artificial fizzing
sound.  Yes, it's perhaps a little subjective, but when you define 'low
quality' to mean 'sounds artifical because white noise is not recorded well
and instead sounds like a small jet of bubbling steam, as do complex sounds
like cymbals and essonance' then my experimental results seem (to ME) to
show that the MD recorded on the Sharp 831 is the lowest quality of the
three.


 The 831 adds a layer of sparkly, burbling high frequencies to quiet
 passages and high frequencies .. in fact, if you record anything with
 a slight amount of background noise onto the 831 the background noise
 just sounds crazy and artificial like a load of bubbles bursting
 instead of dull white noise. DON'T come back at me by saying 'You
 should get a better CD collection if all the tracks have background
 hiss' because I'll just tell you where to go. That's my CDs, and the
 831 cannot encode them as well as a Aiwa model at half the price, or
 a Sony deck, or ...

 As for the above paragraph (and this is completely unrelated to the
 previous debate), I've never heard of any kind of "layer of sparkly,
 burbling high freqencies" or the like when recording from CD to MD. The
 MD never sounds as good on my equipment, but never because of such
 "noise." To me that sounds like a problem with your recorder.

I'm not the only one !!   I just did a quick search on altavista and came up
with this:
http://minidisc.org/hearing_sharp_atrac.html

Although I did also find this as a kind of response
http://minidisc.org/hearing_sharp_atrac.html

Is it a problem with my Sharp831; or is it a problem with THE sharp 831?
And how can I find out, other than try a bunch of other Sharp831 units,
perhaps by taking my unit back to the store and complaining that it sounds
'broken' ?

dave



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Re: MD: Future of minidiscs

2000-08-20 Thread Dave Hooper


 I'm not the only one !!   I just did a quick search on altavista and came
up
 with this:
 http://minidisc.org/hearing_sharp_atrac.html

 Although I did also find this as a kind of response
 http://minidisc.org/hearing_sharp_atrac.html

Oops ... that second URL ought to be
http://amulation.com/md-l-archive/199905/msg00769.html

d

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Re: MD: Future of minidiscs

2000-08-20 Thread Dan Frakes



  ===
  = NB: Over 50% of this message is QUOTED, please  =
  = be more selective when quoting text =
  ===

"Dave Hooper" [EMAIL PROTECTED] wrote:
 OK, but the problem is that all of the above is a CD vs. MD sound
 comparison. I agree that MD doesn't sound as good as CD. However, your
 original claim, to which I was responding, was that high-bitrate MP3
 sounds better than MD.

Well, what I wrote was actually directly in response to someone else's claim
that "MD always sounds better than MP3s".  I was merely describing a simple
test that compares CD vs. MD because, essentially, when I rip MP3s I don't
get the strange sparkly burbling sounds.

I see now what you were trying to illustrate. However, see below.

(P.S. I was one of the people who said -- and still say -- that MD always 
sounds better than MP3s.)

 As for the above paragraph (and this is completely unrelated to the
 previous debate), I've never heard of any kind of "layer of sparkly,
 burbling high freqencies" or the like when recording from CD to MD. The
 MD never sounds as good on my equipment, but never because of such
 "noise." To me that sounds like a problem with your recorder.

I'm not the only one !! I just did a quick search on altavista and 
came up with this: http://minidisc.org/hearing_sharp_atrac.html

Although I did also find this as a kind of response 
http://minidisc.org/hearing_sharp_atrac.html

Is it a problem with my Sharp831; or is it a problem with THE sharp 
831? And how can I find out, other than try a bunch of other Sharp831 
units, perhaps by taking my unit back to the store and complaining 
that it sounds 'broken' ?

Well, then that sounds like there is a problem with the Sharp 831. I've 
never heard such "fizzing" with a 702 or 722, nor have I heard it with a 
Sony MZ-R50. But back to the original discussion, using an 831 that 
apparently has a faulty encoding algorithm isn't a very good way to 
compare MD to MP3 ;-)
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Re: MD: Future of minidiscs

2000-08-19 Thread las


Dan Frakes wrote:

 "Dave Hooper" [EMAIL PROTECTED]:
 ...the quality of a true digital copy of an original (prerecorded CD)
 to an ATRAC encoded Mini Disc is superior to that of MP3 .
 
 YOU ARE WRONG.

Dan the above statement was addressed to me (Larry).  Don't you just hate it
when someone is wrong and keep insisting that "YOU ARE WRONG".  For one thing
it makes that person just look that much more foolish.


 
 Everything that I record on my Sharp831, using a digital optical
 connection to my Marantz CD6000OSE from a good quality CD source
 sounds NOTICEABLY fake with clearly audible compression artifacts.
 Yes, the quality of MP3 -encoded audio can vary greatly ... but good
 quality MP3 audio DOES sound better than everything I personally
 record on my Sharp831.

 No offense Dave (seriously), but you either aren't using your 831
 correctly, or you're not doing any sort of scientific comparison (i.e.
 you're listening on different equipment and/or there are other factors
 affecting the sound). The highest quality MP3 still doesn't sound as good
 as a digital copy of an MD.

 The quality of ATRAC compression can vary greatly.

I don't know that that is a fact!  Comparing equal versions (same chipset
should product consistent results.)



 Doing a blind comparison for friends (they don't know the source, they
 just listen to me switch the inputs) always results in MD coming out on
 top, regardless of whether or not the MP3's are being played through
 digital or analog outputs. My guess is that the difference would be at
 least as big, if not more so, if I were using an MD player with digital
 out, since the D/A converter on the receiver is probably better than the
 one on my MZ-R50.

To really do it right not only the listener but even the person selecting the
music must not know which is which.  This is easy with drugs, but may prove
impossible with an MD VS an MP3.

The other thing that makes these A/B tests very difficult is that you need a
way to perfectly balance the volume.  Speaking of Psychoacoustics, generally
speaking, the louder volume the better the perceived sound quality.

Larry


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Re: MD: Future of minidiscs

2000-08-19 Thread las


Dave Hooper wrote:

 - Original Message -
  Everything that I record on my Sharp831, using a digital optical
  connection to my Marantz CD6000OSE from a good quality CD source
  sounds NOTICEABLY fake with clearly audible compression artifacts.
  Yes, the quality of MP3 -encoded audio can vary greatly ... but good
  quality MP3 audio DOES sound better than everything I personally
  record on my Sharp831.
 
  No offense Dave (seriously), but you either aren't using your 831
  correctly, or you're not doing any sort of scientific comparison (i.e.
  you're listening on different equipment and/or there are other factors
  affecting the sound). The highest quality MP3 still doesn't sound as good
  as a digital copy of an MD.

 OK . Here's the test I did and it's inCREDibly simple
 Granted it isn't particularly scientific, but that doesn't mean it should be
 debunked instantly.

 1. Put a blank MD in your Sharp831 recorder
 2. Connect the optical digital IN on the 831 to the optical digital OUT of
 the CD player
 3. Put in a good CD with lots of dynamics, quiet bits, and high frequencies,
 and if possible a little
 background noise. Something recorded live rather than overproduced, so
 something like A Minor Forest,
 Do Make Say Think or Mogwai, rather than Future Sound Of London
 4. Set to Rec-Pause and monitor to the audio coming out of the CD player
 source
 5. Record the track onto minidisc
 6. Play the track back.

 Which factors change? As far as I can see only:
 1-  Whether the audio is direct from the source CD or from the MD copy
 2-  Whether the 831 is postprocessing the MD audio differently than
 Rec-Pause monitoring

 I can rule out 2 because:
 I did the same test on a friend's Aiwa player and the differences (whilst
 still there) were less pronounced,
 and then I played that MiniDisc on my 831 player and did a blind A/B/X test
 to compare it with the one I recorded on my 831.  Guess what?  My 831 lost
 every time.

I have never seen a discussion about this and it has never come up so I am not
sure which of the following is the case and also not 100% sure I fully
understand your statement above with regard to  the means you used to monitor
the sound.

First, does the sound coming out of an MD player while the MD is being recorded,
come from the MD or is it just a straight pass through.  In other words like the
difference between a one head and a two head cassette recorder?

I don't think that the sound you hear while you are doing the actual recording
is coming from the MD since that would require the laser to be recording and
playing at the same time.  This statement applies if I interpreted how you did
your test correctly.

If I am correct about not being able to monitor the actual output of the MD
itself while it is being produced and that's what you are saying you did in your
test, then ATRAC has nothing to do with the difference in sound quality you are
hearing.

If I misinterpreted how you did the test, please correct me.

 The 831 adds a layer of sparkly, burbling high frequencies to quiet passages
 and high frequencies .. in fact, if you record anything with a slight amount
 of background noise onto the 831 the background noise just sounds crazy and
 artificial like a load of bubbles bursting instead of dull white noise.
 DON'T come back at me by saying 'You should get a better CD collection if
 all the tracks have background hiss' because I'll just tell you where to go.
 That's my CDs, and the 831 cannot encode them as well as a Aiwa model at
 half the price, or a Sony deck, or ...

  NO!! YOU ARE WRONG! because what you state below is a subjective statement
 that
  has no meaning in reality.  If you hear digital artifacts so clearly with
 the MD
  copy, something is wrong with your CD player or recorder.  Sounds like a
 it may
  be a bad ADC.

There is no ADC in the process.  I just threw that in to see if you were on your
toes.  But there is a DAC at the end of the chain for the MD.  The quality of
DACs can vary greatly.  I'm sure that you know they make stand alone ADC and
DACs that cost more then most people's entire audio system.  These are not for
consumer use (unless you are really, really into music and super wealthy).



 My CD player is fine, thankyou. No really.  What, you actually think a CD
 player uses an ADC between the audio source and the digital optical output?
 Are you mad?
 And hey, I get exactly the same results no matter what CD drive I use, or
 whether I use the optical output on my SBLive Live Drive II, or if I use
 conventional analogue in, or ... No, please believe me, I have tried SO MANY
 different sources. What, they're all broken?

Broken, no.


  The quality of ATRAC compression can vary greatly. Both MP3 encoders
  and ATRAC encoders have improved since their inception such that
  

 almost any modern MP3-encoded file will sound better than a MiniDisc
  recorded using a version of Atrac that is a couple of generations
  old.


Here you are 

Re: MD: Future of minidiscs

2000-08-19 Thread Dan Frakes


las [EMAIL PROTECTED] wrote:
 YOU ARE WRONG.

Dan the above statement was addressed to me (Larry).

I know ;-)

Don't you just hate it when someone is wrong and keep insisting that 
"YOU ARE WRONG". For one thing it makes that person just look that 
much more foolish.

I just think that in a civil discussion, there are better ways to tell 
someone they are wrong ;-)

 The quality of ATRAC compression can vary greatly.

I don't know that that is a fact!  Comparing equal versions (same chipset
should product consistent results.)

Dave actually wrote that (just in case anyone was confused by all the 
quoting levels). He's only correct insofar as different *versions* of 
ATRAC are used. But ATRAC 3 is identical to ATRAC 3, regardless of the 
hardware doing the encoding.

To really do it right not only the listener but even the person 
selecting the music must not know which is which.

If the person doing the selecting is not giving any clues or cues, it's 
not a problem, especially in this sort of test.

The other thing that makes these A/B tests very difficult is that you 
need a way to perfectly balance the volume. Speaking of 
Psychoacoustics, generally speaking, the louder volume the better the 
perceived sound quality.

True. In fact, in short-term listening, excessive treble (and bass) 
generally result in better perceived sound quality among untrained 
listeners. That's why most of the mass-market speakers you listen to in 
Circuit City, Best Buy, etc. have such "good" high frequency response -- 
the problem is that you get them home and you get fatigued listening to 
them for long periods of time...
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Re: MD: Future of minidiscs

2000-08-19 Thread Dan Frakes



  ===
  = NB: Over 50% of this message is QUOTED, please  =
  = be more selective when quoting text =
  ===

"Dave Hooper" [EMAIL PROTECTED] wrote:
 No offense Dave (seriously), but you either aren't using your 831
 correctly, or you're not doing any sort of scientific comparison (i.e.
 you're listening on different equipment and/or there are other factors
 affecting the sound). The highest quality MP3 still doesn't sound as good
 as a digital copy MD.

OK . Here's the test I did and it's inCREDibly simple
Granted it isn't particularly scientific, but that doesn't mean it should be
debunked instantly.

1. Put a blank MD in your Sharp831 recorder
2. Connect the optical digital IN on the 831 to the optical digital OUT of
the CD player
3. Put in a good CD with lots of dynamics, quiet bits, and high frequencies,
and if possible a little
background noise. Something recorded live rather than overproduced, so
something like A Minor Forest,
Do Make Say Think or Mogwai, rather than Future Sound Of London
4. Set to Rec-Pause and monitor to the audio coming out of the CD player
source
5. Record the track onto minidisc
6. Play the track back.

[more details snipped]

OK, but the problem is that all of the above is a CD vs. MD sound 
comparison. I agree that MD doesn't sound as good as CD. However, your 
original claim, to which I was responding, was that high-bitrate MP3 
sounds better than MD.


The 831 adds a layer of sparkly, burbling high frequencies to quiet 
passages and high frequencies .. in fact, if you record anything with 
a slight amount of background noise onto the 831 the background noise 
just sounds crazy and artificial like a load of bubbles bursting 
instead of dull white noise. DON'T come back at me by saying 'You 
should get a better CD collection if all the tracks have background 
hiss' because I'll just tell you where to go. That's my CDs, and the 
831 cannot encode them as well as a Aiwa model at half the price, or 
a Sony deck, or ...

As for the above paragraph (and this is completely unrelated to the 
previous debate), I've never heard of any kind of "layer of sparkly, 
burbling high freqencies" or the like when recording from CD to MD. The 
MD never sounds as good on my equipment, but never because of such 
"noise." To me that sounds like a problem with your recorder.


NO!! YOU ARE WRONG! because what you state below is a subjective 
statement that has no meaning in reality. If you hear digital 
artifacts so clearly with the MD copy, something is wrong with your 
CD player or recorder. Sounds like a it may be a bad ADC.

You attributed the above quoting to me. I didn't write it.

 Dan said:
 MD's recorded on a Sharp MS-702 (two to three years old) still sound
 significantly better than the best MP3 encoding of today. You're welcome
 to come over to my place and do a scientific comparison ;-)

Can I? Do you live in the UK?

Sorry, California ;-)
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Re: MD: Future of minidiscs

2000-08-18 Thread las


 Dear sir,
i do like the minidisc for its size and quailtiy however, portable
 mp3 cd players have been introduced. I like the fact that i can now burn up
 to 8 hrs of cd quality music to one CD

Sir you incorrectly state that an MP3 file will produce CD quality music.  The
quality of MP3 files can vary greatly.  But one thing that I am fairly  certain
about is that the quality of a true digital copy of an original (prerecorded CD)
to an ATRAC encoded Mini Disc is superior to that of MP3 .

 I agree that the storage is a significant factor and that for the vast majority
 of people the difference in sound quality between MP3 and digital transfer Mini
 Disc is not as important as the extended time.  But the fact still remains that
 MD is superior in fidelity when compared to MP3.


 Sony and others have just announced MDLP products (see the MDCP news),
 these can provide 5h20m of stereo playback at "reasonable" fidelity
 (not much has been reported about MP3 vs. ATRAC3 quality at 66kbps
 yet).

Until certified A/B double blind listening tests have been performed it is
impossible to say who the quality of the new ATRAC3 encoding compares to MP3
files transferred to a CDR(W).



 MDLP can be seen as the MiniDisc's [current] answer to MP3.

 Should the walls of RIAA and SDMI someday come tumbling down, I am
 sure there might be other, more interesting MD/MP3 (or at least open
 ATRAC) synergies.

As Rick has stated, I think that the consumer electronics industry in general is
waiting to see if legislation will be passed permitting the downloading of
copyrighted music.  It is very possible that some agreement will be reached.  But
I feel strongly that there will be some cost to the consumer paid to the
copyright holder.  Such as the few cents that are supposed to be added to compact
cassettes.

In spite of of the terrible disappointment regarding the growth of the Mini Disc
format in the United States (it remains a huge success in Japan), if this whole
MP3 thing is eventually worked out, I think that we may see new growth (certainly
the door would be opened for growth potential) in the MD in the US.

 I do not see static RAM (for example Flash Cards) as a realistic means of
 storing music.  Although they offer the advantage of totally eliminating the
 skipping problem (when shaken) I do not realistically see them as anything more
 then a temporary means of storing songs.  The price is way to high and will
 continue to remain so.

It is important not to confuse photographs with music.  Flash cards are great for
use in digital cameras.  They are not intended for anything but temporary
storage.  Since digital images will require a computer or hard copy, the object
of the flash card is to use on the "road" and then to transfer to your computer
(CDRs are a great place to store them).

With the advent of direct memory to computer transfer using USB (either through
newer camera or the quite inexpensive card readers (e.g. SanDisc's is only $30)
copying images takes only seconds.

Music on the other hand must be stored on something very portable and inexpensive
so that you can build up a library.  You don't need computer to listen to music.
Just a player.  You want to be able to carry with you as many songs as you feel
like and play them at will.  Even with the larger CD, you can still carry dozens
of them with hundreds of songs in a relatively small space and weight.

 Larry
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Re: MD: Future of minidiscs

2000-08-18 Thread Dave Hooper


- Original Message -
From: "las" [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, August 18, 2000 7:03 PM
Subject: Re: MD: Future of minidiscs


 Sir you incorrectly state that an MP3 file will produce CD quality music.
The
 quality of MP3 files can vary greatly.  But one thing that I am fairly
certain
 about is that the quality of a true digital copy of an original
(prerecorded CD)
 to an ATRAC encoded Mini Disc is superior to that of MP3 .

YOU ARE WRONG.

Everything that I record on my Sharp831, using a digital optical connection
to my Marantz CD6000OSE from a good quality CD source sounds NOTICEABLY fake
with clearly audible compression artifacts.
Yes, the quality of MP3 -encoded audio can vary greatly ... but good quality
MP3 audio DOES sound better than everything I personally record on my
Sharp831.

The quality of ATRAC compression can vary greatly. Both MP3 encoders and
ATRAC encoders have improved since their inception such that almost any
modern MP3-encoded file will sound better than a MiniDisc recorded using a
version of Atrac that is a couple of generations old.

The quality of Prerecorded MiniDiscs however is almost certainly going to be
better than the quality of any handmade MP3 files.


 Music on the other hand must be stored on something very portable and
inexpensive
 so that you can build up a library.  You don't need computer to listen to
music.
 Just a player.  You want to be able to carry with you as many songs as you
feel
 like and play them at will.  Even with the larger CD, you can still carry
dozens
 of them with hundreds of songs in a relatively small space and weight.

If there existed mass-production MP3 encoding portables then it would make
sense for them to use Flash Ram
... the device could be used to create wholly digital solid-state no-skip
recordings of live events or dictation ... which could then be transferred
(using a PC) onto more suitable media for building up a collection.
I have no idea if MP3-encoding portables exist, but I would rather use
MiniDisc anyway because it is portable AND inexpensive. In the same way
that, if I wanted to build up a collection of photographs (just as I build
up a collection of music) I would probably want a digital camera that takes
portable and inexpensive rewritable media (and I don't mean floppy disks or
any proprietary non-mainstream junk).

dave

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Re: MD: Future of minidiscs

2000-08-18 Thread las



  ===
  = NB: Over 50% of this message is QUOTED, please  =
  = be more selective when quoting text =
  ===

  Sir you incorrectly state that an MP3 file will produce CD quality music.
 The
  quality of MP3 files can vary greatly.  But one thing that I am fairly
 certain
  about is that the quality of a true digital copy of an original
 (prerecorded CD)
  to an ATRAC encoded Mini Disc is superior to that of MP3 .

 YOU ARE WRONG.



NO!! YOU ARE WRONG! because what you state below is a subjective statement that
has no meaning in reality.  If you hear digital artifacts so clearly with the MD
copy, something is wrong with your CD player or recorder.  Sounds like a it may
be a bad ADC.

 Larry


 Everything that I record on my Sharp831, using a digital optical connection
 to my Marantz CD6000OSE from a good quality CD source sounds NOTICEABLY fake
 with clearly audible compression artifacts.
 Yes, the quality of MP3 -encoded audio can vary greatly ... but good quality
 MP3 audio DOES sound better than everything I personally record on my
 Sharp831.

 The quality of ATRAC compression can vary greatly. Both MP3 encoders and
 ATRAC encoders have improved since their inception such that almost any
 modern MP3-encoded file will sound better than a MiniDisc recorded using a
 version of Atrac that is a couple of generations old.

 The quality of Prerecorded MiniDiscs however is almost certainly going to be
 better than the quality of any handmade MP3 files.


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