Re: MD: decibel scale

1999-08-20 Thread Stainless Steel Rat


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* Hannes Rohde <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
| Now, that's a short concert!

Shortest rock show I attended was Green Day on the Boston Esplanade.  20
minutes or so and then the MDC pulled the plug.

| Another rule-of-thumb, though not really usefull: If it hurts in
| your ears, it has been damaging your ears. The level damaging your
| ears is lower than the pain-causing level.

Pain is your body's way of saying, "STOP THAT, DAMNIT! THAT HURTS!"
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Re: MD: Question on MZ-E40

1999-08-20 Thread PrinceGaz


Hi Dave, as a SWL myself I paid a quick visit to your page.
I used to own a Lowe HF-225 gen coverage rx but needed to sell it
when short for cash and spending much more time on the net.  I
still have my Sony ICF SW-77 though which works fine.  Being in
Britain there are no freq restrictions (150KHz-30MHz AM, AM Sync,
USB, LSB/CW and 76-108MHz Wide FM).

I only listen infrequently, but find the set great to use, and as you
mentioned the memories make it marvellous to listen to a particular
station without looking up frequencies.

I've had no probs with the tuning knob but would have preferred one
with a dimple for my finger, and also for the display light to stay on
while using it, or better yet until turned off.

As for the synchronous detector, on a strong station with no interference,
the sound quality is lowered a little, but on a weak station, it works great
maintaing a lock through all but the very deepest fades and is easier
than selecting sideband and tuning in like an SSB signal.

Anyway good to see another radio enthusiast here.  Hope to hear from
you again Dave.

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

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


- Original Message -
From: Davez <[EMAIL PROTECTED]>
> Visit "Dave's Radio Receiver Page" at
> http://www.ticon.net/~davez


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Re: MD: Question on MZ-EZ40 (regular clicks)

1999-08-20 Thread PrinceGaz


Replying via md-l in case anyone else has similar worries (or because I
just like to gab).  I could reply direct, but...

My MZ-R3 does that too and always has since buying it over 3 years ago.
According to the manual (which I have temporarily misplaced) mechanical
noise from the unit is normal and is not a sign of malfunction.  I think it also
mentions power-saving as well.

A sort of "quiet click every 2 seconds or so, with very quiet whirring / disk
spinning between alternate clicks" which when I monitored the current
consumption corresponded with the motor running then stopping.  On mono
the clicks were about 4 seconds apart as you would expect from the half-
speed data transfer.

Since the current drain was roughly halved in the motor-off part of the cycle
this meant it drains only 75% (half 50%, half 100%) of what the continuous
motor running would be.  So on my 2AA Nicads I get about 120mins instead
of 90mins, on a good day (650mAH cells).  Superb.

The unit can of course only stop the motor due to having buffered the music
in the anti-shock memory, so if you shake your unit the clicks might stop.  Of
course if you shake it *too* vigorously the unit might stop and it will need a
trip to the repair shop :-P

At least thats what I believe my R3 does, and would really appreciate anyone
else with an R3 confirming this is normal behaviour.  [Hi again, David :-]

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

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

--
From: Davez <[EMAIL PROTECTED]>
> Just purchased a Sony MZ-E40 portable player, and have a question. Not sure
> if this is a problem or not ? It seems to play just fine, however I notice
> that the player itself (as it's playing a MD), about every 3 seconds that
> smooth running sound that a MD usually gives (Im used to decks.. this is my
> first portable) if you stick your ear near to the cabinet is not so smooth
> on this MZ-E40. About every 3 seconds a little clickity sound I can hear. It
> lasts for about a second,sounds normal to me and then in another 3 seconds
> this sounds happens it all over again (just keeps repeating itself). Not
> loud, but certinally noticeable.
>
> Anyone have any insight on this one, any information would be most helpful.
> I'm thinking that it might already need a trip to repair ??
>
> (please respond directly as well if you could)



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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread PrinceGaz


From: Stainless Steel Rat <[EMAIL PROTECTED]>
> * Jough Dempsey <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
> | The wheel is notched, so you can feel it when you spin it, but it's
> | certainly not hard to spin.
>
> The term is "repetative stress injury".  It is not the difficulty in
> spinning it, it is the pain caused by the short, repetative movements
> required to spin it.

Isn't the term "Repetative *Strain* Injury"?  Repetative Stress Injury is
what you suffer from too many UTOC errors on the Shark porties ;-)

Cheers,
PrinceGaz -- "I guess the R3 was the only unit with a *convenient* jog
dial then, I'll happilly title a whole album with it!"


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RE: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Tony Antoniou


Like I said, not everyone gets RSI. I didn't say that we didn't need to
worry about it.

Adios,
LarZ

---  TAMA - The Strongest Name in Drums  ---


-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
Of J. Coon
Sent:   Saturday, 21 August 1999 4:06
To: [EMAIL PROTECTED]
Subject:Re: MD: Comparision between MZ-R50 and MZ-R55



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  = NB: Over 50% of this message is QUOTED, please  =
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But some do.  Not everyone gets carpal tunnel syndrome form working on a
computer keyboard, but it is still a factor that has to be considered
and be aware of.

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Re: MD: 530 / 930 decks

1999-08-20 Thread Ralf Kuchenhart


Daniel schrieb:

> I have just bought a TEAC system, but want to add on a Sony deck.. I cannot
> decide whether to go for a 930 or a 530 deck... as i cannot see much
> difference between the two. Could someone please clarify?
>

Hi Daniel,

Differences on the JE-930 are the quality of the analog parts (i.e. current
pulse D/A converter vs. normal D/A converter), Control-A1 interface, all 4
digital connectors (optical in/out, electrical in/out) and PS/2 connector for
titling with an ordinary PC keyboard. In addition to that, JE-930 seems to have
the old type of remote with a single button for each letter, whereas JE-530 has
a new slim one with ten buttons for all letters (like mobile phones). JE-530
lacks some of the electrical digital connectors.

BTW, when does Sony introduce a JE-530 with T9 text recognition...? They
could promote such a feature as a major step in comfortable titling (compared
to the normal JE-530).  

Ralf




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Re: MD: decibel scale (was analog follow-up question)

1999-08-20 Thread Ralf Kuchenhart


Ian Horsey schrieb:

> All there is to know about dB :
>
> The sound intensity level B (beta) is given by (10dB) x log I / Io
>

[...]

> Back to ordinary dB - an intensity increase of a factor of two leads to a
> 3dB increase in sound intensity level.  This change is barely perceptible to
> the human ear, and most people usually equate an increase of 8 to 10dB in
> sound intensity level to a doubling of loudness.
>
> So there is a point in doing a degree in Electronic Engineering! Hooray!

Well, that's what you learn with an degree in Electronic Engineering, if you had
some lessons in acoustics you would learn something more (or different?)

I don't know the exact Englisch words for "Schalleistungs(pegel)" and
"Schalldruck(pegel)". I would say sound power and sound pressure.

The formular for sound power level is 10(dB)* log (I/Io), but the formular for
sound pressure is 20(dB)*log (p/p0). If you regard the (electrical) power you
need in your amps and to drive the speakers, your formular is absolutely right,
Ian, but if you regard the electric level you record from the microphone, you
have to use the formular for the sound pressure. Therefore, the step of 1 bit in
the PCM code is always 6(.02) dB, not 3(.01) dB.

Ralf



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Re: MD: Grundig MD deck => OT: Dutch newspapers => MD titling from Palm?

1999-08-20 Thread Ralf Kuchenhart


Simon Gardner schrieb:

> Are there any palm-based programs for titling yet? (Sony decks or
> otherwise). I'd have thought that a nifty little device like that, with
> built-in IR would be perfect..

The technology is present, but there is no application for MD titling. The
Palm application for ordinary audio/video IR commands via Palm is
OmniRemote from http://www.pacificneotek.com

BTW, users tell that the power of the IR beam of the  2 MB upgrade module
is noticable higher than that of the PalmIII.

Ralf




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MD: Pet Minidisc?

1999-08-20 Thread J. Coon


Check this one out  http://tinpan.fortunecity.com/mingus/91/Funbit.html

and you can bid on your very own on Ebay.  Oh, well.


Jim Coon
Not just another pretty mandolin picker
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?


My first web page

http://www.tir.com/~liteways/
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Re: MD: decibel scale (was analog follow-up question)

1999-08-20 Thread Ralf Kuchenhart


Colin Burchall schrieb:

> As a rule of thumb, 10dB is very close to an average person's perception of
> doubled volume.

Only a rule of thumb? Have a look onto the "sone" scale and it's formular (I
don't have it at hand) when converting between sone and dB. A sound of 2 sone is
exactly twice as loud as a sound of 1 sone (at least for an average person...).

Ralf




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Re: MD: Data CD's for Audio

1999-08-20 Thread LAS


Geoffrey Goode wrote:

> Sometime back someone on this list stated how to modify a data CD-R on a
> computer CD-Writer to enable it to be written to by a stand-alone audio
> CD writer.  I would appreciate it if that person could re-iterate how to
> do this.CDs from an original.

Since the computer does not use SCMS, you can make a perfect copy.  Even
from a copy.

The copy made should work on any late model CD player.

But I'm not saying that it is legal to do this.  Just explaining technical
information.

LAS

>

>
>
> I know that if you put an audio track down on the data CD-R, as a multi-
> session, you can then record on an audio CD writer, but how do you set
> it up to do this without putting down that track.  I believe that we are
> talking about setting one Byte from a data marker to audio.
>
> Thanks
> --
> Geoff
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Re: MD: Question on MZ-EZ40

1999-08-20 Thread J. Coon


Davez wrote:
> 
> Just purchased a Sony MZ-E40 portable player, and have a question. Not sure
> if this is a problem or not ? It seems to play just fine, however I notice
> that the player itself (as it's playing a MD), about every 3 seconds that
> smooth running sound that a MD usually gives (Im used to decks.. this is my
> first portable) if you stick your ear near to the cabinet is not so smooth
> on this MZ-E40. About every 3 seconds a little clickity sound I can hear. It
> lasts for about a second,sounds normal to me and then in another 3 seconds
> this sounds happens it all over again (just keeps repeating itself). Not
> loud, but certinally noticeable.

I think the motor just runs to fill the buffer. It is a way to conserve 
the battery.  My R30 does the same thing.  

Now, I have been told that if you listen to loud rock concerts, you
don't notice the ticking sound at all.

--
Jim Coon
Not just another pretty mandolin picker
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?


My first web page

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Re: MD: decibel scale

1999-08-20 Thread J. Coon


Hannes Rohde wrote:
> 
> Stainless Steel Rat wrote:
> 
> > I used to have a little table that listed how long you could listen
> > to certain things before permanent damage occoured.  Two of the
> > high end sounds were "rock concert", 110dB, 7 minutes
> 
> Now, that's a short concert!

Still probably too long.

> Remind me to take my ear plugs with me to Cologne tonight. I forgot
> them yesterday but it was great fun anyway. Anyone else here going
> to Cologne to visit the PopKomm music fair?

What did you say? What? 

--
Jim Coon
Not just another pretty mandolin picker
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?


My first web page

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Re: MD: Question on MZ-E40

1999-08-20 Thread Davez


Hi Ron,

Thanks for the reply and your findings...

Yes, that's about it. It's a quiet tick, a normal MD running "ticking" sound
(at least on a home deck), and then you get that louder weird, I guess you
could call it a sort of a tick/twitching sound, and back to the quiet tick
again. Humm, maybe a battery saver of some time ??. I guess a few more users
that might want to pass along comments would be great, but it's looking like
this is normal ?? Just a bit scary to hear that unstable type gremlin in
there.

I like the MZ-E40's LCD display being attached to the set, not a lover of
those ones on the cord.

Davez
**
Visit "Dave's Radio Receiver Page" at
http://www.ticon.net/~davez

- Original Message -
From: LaPedis, Ron <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>; 'Davez' <[EMAIL PROTECTED]>
Sent: Friday, August 20, 1999 2:41 PM
Subject: RE: Question on MZ-EZ40


> Mine goes tick-tick-tick-tick-tick (very soft and continuous),
> TICK-TICK-TICK (3-4 times, loudly), tick-tick-tick-tick-tick, etc. so I
> guess it's normal. I never noticed until now.
>
> Ron LaPedis
> Compaq Professional Services
> NonStop Integration Services
> Cupertino, California  USA
>
>
> -Original Message-
> From: Davez [mailto:[EMAIL PROTECTED]]
> Sent: August 20, 1999 08:12
> To: [EMAIL PROTECTED]
> Subject: MD: Question on MZ-EZ40
>
>
>
> Just purchased a Sony MZ-E40 portable player, and have a question. Not
sure
> if this is a problem or not ? It seems to play just fine, however I notice
> that the player itself (as it's playing a MD), about every 3 seconds that
> smooth running sound that a MD usually gives (Im used to decks.. this is
my
> first portable) if you stick your ear near to the cabinet is not so smooth
> on this MZ-E40. About every 3 seconds a little clickity sound I can hear.
It
> lasts for about a second,sounds normal to me and then in another 3 seconds
> this sounds happens it all over again (just keeps repeating itself). Not
> loud, but certinally noticeable.
>


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Re: MD: decibel scale

1999-08-20 Thread Hannes Rohde


Stainless Steel Rat wrote:

> I used to have a little table that listed how long you could listen
> to certain things before permanent damage occoured.  Two of the
> high end sounds were "rock concert", 110dB, 7 minutes

Now, that's a short concert!

Another rule-of-thumb, though not really usefull: If it hurts in
your ears, it has been damaging your ears. The level damaging your
ears is lower than the pain-causing level.

Remind me to take my ear plugs with me to Cologne tonight. I forgot
them yesterday but it was great fun anyway. Anyone else here going
to Cologne to visit the PopKomm music fair?

Bye,
  Hannes _.-._.-> If you don't move, you don't Mojo!


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RE: MD: Question on MZ-EZ40

1999-08-20 Thread LaPedis, Ron


Mine goes tick-tick-tick-tick-tick (very soft and continuous),
TICK-TICK-TICK (3-4 times, loudly), tick-tick-tick-tick-tick, etc. so I
guess it's normal. I never noticed until now.

Ron LaPedis
Compaq Professional Services
NonStop Integration Services
Cupertino, California  USA


-Original Message-
From: Davez [mailto:[EMAIL PROTECTED]]
Sent: August 20, 1999 08:12
To: [EMAIL PROTECTED]
Subject: MD: Question on MZ-EZ40



Just purchased a Sony MZ-E40 portable player, and have a question. Not sure
if this is a problem or not ? It seems to play just fine, however I notice
that the player itself (as it's playing a MD), about every 3 seconds that
smooth running sound that a MD usually gives (Im used to decks.. this is my
first portable) if you stick your ear near to the cabinet is not so smooth
on this MZ-E40. About every 3 seconds a little clickity sound I can hear. It
lasts for about a second,sounds normal to me and then in another 3 seconds
this sounds happens it all over again (just keeps repeating itself). Not
loud, but certinally noticeable.

Anyone have any insight on this one, any information would be most helpful.
I'm thinking that it might already need a trip to repair ??

(please respond directly as well if you could)

Thanks,
DaveZ

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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread J. Coon



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

But some do.  Not everyone gets carpal tunnel syndrome form working on a
computer keyboard, but it is still a factor that has to be considered
and be aware of.

Tony Antoniou wrote:
> 
> Not everyone gets RSI from such things. It's all a personal thing.
> 
> Adios,
> LarZ
> 
> ---  TAMA - The Strongest Name in Drums  ---
> 
> -Original Message-
> From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
> Of Stainless Steel Rat
> Sent:   Saturday, 21 August 1999 2:46
> To: MD-L
> Subject:Re: MD: Comparision between MZ-R50 and MZ-R55
> 
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
> 
> * Jough Dempsey <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
> | The wheel is notched, so you can feel it when you spin it, but it's
> | certainly not hard to spin.
> 
> The term is "repetative stress injury".  It is not the difficulty in
> spinning it, it is the pain caused by the short, repetative movements
> required to spin it.
> 
> -
> To stop getting this list send a message containing just the word
> "unsubscribe" to [EMAIL PROTECTED]

--
Jim Coon
Not just another pretty mandolin picker
mailto:[EMAIL PROTECTED]
If Gibson made cars, would they sound so sweet?


My first web page

http://www.tir.com/~liteways/
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Re: MD: Data CD's for Audio

1999-08-20 Thread David W. Tamkin


Sorry if this is a duplicate.  My connection dropped just as I was
dispatching the first attempt to post this.

Geoff Good wrote,

| Sometime back someone on this list stated how to modify a data CD-R on a
| computer CD-Writer to enable it to be written to by a stand-alone audio
| CD writer.  I would appreciate it if that person could re-iterate how to
| do this.

As Mike Schuster has already said, that doesn't happen.  Once the CD-R is
manufactured nothing can modify the ID bytes.

What has been posted here is a trick that works on some of standalone CD-R
recorders (certain older Pioneers, I think), where you insert an audio CD-R
and somehow swap a data CD-R for it in such a way that the unit does not
recheck the ID bytes, so it believes that it is working with an audio CD-R. 
There is no alteration to the CD-R's ID bytes themselves.

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RE: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Tony Antoniou


Not everyone gets RSI from such things. It's all a personal thing.

Adios,
LarZ

---  TAMA - The Strongest Name in Drums  ---


-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
Of Stainless Steel Rat
Sent:   Saturday, 21 August 1999 2:46
To: MD-L
Subject:Re: MD: Comparision between MZ-R50 and MZ-R55


-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

* Jough Dempsey <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
| The wheel is notched, so you can feel it when you spin it, but it's
| certainly not hard to spin.

The term is "repetative stress injury".  It is not the difficulty in
spinning it, it is the pain caused by the short, repetative movements
required to spin it.

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RE: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Tony Antoniou


Semantics aside, it's still regarded as a jog dial, but in a thumbwheel
arrangement.

Adios,
LarZ

---  TAMA - The Strongest Name in Drums  ---


-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf
Of Stainless Steel Rat
Sent:   Friday, 20 August 1999 13:17
To: MD-L
Subject:Re: MD: Comparision between MZ-R50 and MZ-R55

FYI, the R30/R50 has a thumb screw^Wwheel, not a jog dial.  A real dial
would be a blessing.  The thumb wheel is painful to use for more than about
three characters.

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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Jough Dempsey


At 12:45 PM 8/20/99 -0400, Stainless Steel Rat wrote:

>* Jough Dempsey <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
>| The wheel is notched, so you can feel it when you spin it, but it's
>| certainly not hard to spin.
>
>The term is "repetative stress injury".  It is not the difficulty in
>spinning it, it is the pain caused by the short, repetative movements
>required to spin it.

Well, most people are so used to video games and remote controls and other 
things that one has to control with their thumbs these days that RSI is 
hardly an issue.

--Jough

---
Jough   [EMAIL PROTECTED]   http://www.jough.com
---
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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Stainless Steel Rat


-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

* Jough Dempsey <[EMAIL PROTECTED]>  on Fri, 20 Aug 1999
| The wheel is notched, so you can feel it when you spin it, but it's
| certainly not hard to spin.

The term is "repetative stress injury".  It is not the difficulty in
spinning it, it is the pain caused by the short, repetative movements
required to spin it.
-BEGIN PGP SIGNATURE-
Version: GnuPG v0.9.10 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE3vYY3gl+vIlSVSNkRAtctAKCJAp50/6SHwyCkGmogDqEhlu3nggCfZudG
oS17TfuIyE2q6hXVnYZ3mho=
=K9ZO
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-- 
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RE: MD: decibels

1999-08-20 Thread jeff kleinberg


actually it when you double the ampifier power you get an increase of 3db.
3db is the first noticible increase in volume between ampifiers, but it is
not a doubling of sound level.

jeff

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Jim Gray
Sent: Friday, August 20, 1999 10:40 AM
To: [EMAIL PROTECTED]
Subject: MD: decibels



I seem to recall from a physics class that when you double the sound volume,
it's an increase of 3 dBs.


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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Jough Dempsey


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At 02:15 PM 8/20/99 +, Steve wrote:

>I have an R50 and love it.  If Crutchfield's or anyone else is still
>selling it, I suggest SNAP IT UP.  R50 rules!!!  R50 rules!!!

I love mine, too.  Actually, I've yet to hear from anyone who has an R50 
and *doesn't* love it.

>Just
>hip yourself to the 'end search' button even before you take the unit
>out of the box.

Of course, both the R50 and R55 have the end-search "feature".

>$290 is a great price for what
>you're getting, even if you could get a cheaper one elsewhere, because
>it's the best portable minidisc recorder on the market.  Crutchfield's
>service is worth a few extra dollars, I think.

I've seen it for as low as $260 lately, but not from a reliable company. ;)



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Jough   [EMAIL PROTECTED]   http://www.jough.com
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MD: Question on MZ-EZ40

1999-08-20 Thread Davez


Just purchased a Sony MZ-E40 portable player, and have a question. Not sure
if this is a problem or not ? It seems to play just fine, however I notice
that the player itself (as it's playing a MD), about every 3 seconds that
smooth running sound that a MD usually gives (Im used to decks.. this is my
first portable) if you stick your ear near to the cabinet is not so smooth
on this MZ-E40. About every 3 seconds a little clickity sound I can hear. It
lasts for about a second,sounds normal to me and then in another 3 seconds
this sounds happens it all over again (just keeps repeating itself). Not
loud, but certinally noticeable.

Anyone have any insight on this one, any information would be most helpful.
I'm thinking that it might already need a trip to repair ??

(please respond directly as well if you could)

Thanks,
DaveZ

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Re: MD: Data CD's for Audio

1999-08-20 Thread schuster


> Sometime back someone on this list stated how to modify a data CD-R on a
> computer CD-Writer to enable it to be written to by a stand-alone audio
> CD writer.  I would appreciate it if that person could re-iterate how to
> do this.  

I sincerely doubt that such instructions were posted, because what you ask
is PHYSICALLY impossible. The Disc Application Code bits that standalone
consumer audio CD recorders look for is pressed (embossed, stamped) into
the plastic substrate of the CDR blank - part of the pregroove that the
laser uses to track while recording. There is no way that any CD writer
can write or modify this information, period, end of story. The only way
you can do this is to modify the stamper at your own personal CDR
production factory.

> I know that if you put an audio track down on the data CD-R, as a multi-
> session, you can then record on an audio CD writer, 

No  you can't. To an consumer audio CD-R machine, a data CD-R is a data
CD-R is a data-CDR ... it does not matter WHAT is on it or how it got
there.

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MD: decibels

1999-08-20 Thread Jim Gray


I seem to recall from a physics class that when you double the sound volume,
it's an increase of 3 dBs.


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Re: MD: decibel scale (was analog follow-up question)

1999-08-20 Thread Ian Horsey


All there is to know about dB :

The sound intensity level B (beta) is given by (10dB) x log I / Io

Io is a refernece intensity chosen to be 10E-12 Watts per metre square, the
approximate threshold of human hearing at 1000Hz.

If the intensity of a sound wave equals Io, its sound intensity is said to
be 0dB.  An intensity of 1 watt per metre square is equivalent to 120dB.

However, the ear is not equally sensitive to all frequencies in the audible
range, and this gives rise to the dBA scale.  This scale de-emphasizes the
low and very high frequencies and uses the midrange frequencies to give a
better indication of the sound level you are hearing.

Back to ordinary dB - an intensity increase of a factor of two leads to a
3dB increase in sound intensity level.  This change is barely perceptible to
the human ear, and most people usually equate an increase of 8 to 10dB in
sound intensity level to a doubling of loudness.

So there is a point in doing a degree in Electronic Engineering! Hooray!

Ian (going to put his in-car MD player in to his new car :-)  )

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Re: MD: Comparision between MZ-R50 and MZ-R55

1999-08-20 Thread Steve


I have an R50 and love it.  If Crutchfield's or anyone else is still
selling it, I suggest SNAP IT UP.  R50 rules!!!  R50 rules!!!  Just
hip yourself to the 'end search' button even before you take the unit
out of the box.  The battery life, size, and jog dial are all very
nice.  You get the separate line out and headphones out (like the R55)
And MOST importantly, it's proven to be RELIABLE by a long period of
use by many users.  R50 rules  $290 is a great price for what
you're getting, even if you could get a cheaper one elsewhere, because
it's the best portable minidisc recorder on the market.  Crutchfield's
service is worth a few extra dollars, I think.  (I bought my Pioneer
300 CD player through them and got GREAT service, and felt very
confident in the whole transaction).

Regards to the list,  Steve



On Fri, 20 Aug 1999 02:34:10 +0100, in  you wrote:

>> I am considering the purchase of a portable MD recorder. Most likely it
>> will be either a Sony MZ-R50 or a Sony MZ-R55.
>

>While the R55 shaves a fair bit of weight off and is a lot smaller, it has a
>*much* shorter battery life, and the lack of a jog dial (along with the
>smaller buttons) makes home recording a bit more difficult.
>

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RE: MD: Transco 10pm/Pressit MD Label Templates

1999-08-20 Thread Keith Wilson


Right then... they screwed up my order... apparently they forgot to place 
my name/address on the delivery notice, and consequently it didn't arrive 
until Friday morning >:-(

OAS Has anyone got any PressIt MD Label templates for quark or photoshop or 
even the ExPressit software?

Can you send it to me directly, not through the group if you have

Ta

laters

Keith <-- who from now on is gonna rever all times in 24h stopping him 
making the 10PM fXck up

On Thursday, August 19, 1999 3:07 PM, Keith Wilson 
[SMTP:[EMAIL PROTECTED]] wrote:
> Ok,Ok,Ok,Ok, a slight mishap on my part, h md'ers can be so 
sarcastic >;-)
>
> BTW, the order has yet to turn up... turns out they have changed 
couriers.
> 
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RE: MD: Control using hexadecimal serial data

1999-08-20 Thread Simon Barnes


> Paul Johnson wrote:
> 
> Assuming that you have the specifications as to which hexadecimal codes 
> produce which results, it would be trivial to write a windows program to
> do 
> anything you wanted ...
> 
Pehaps you will forgive me if I suggest this is a bit of a show-off remark.
For those in the know, programming is indeed a trivial task for the most
part, in fact one might say that the dreadful trivialities involved make it
so difficult to do well. On the other hand, suggesting that it is dead easy
implies that those that cannot grasp the arcane principles required are a
bit dim. I think programing at present is highly counter-intuitive. One day
we will learn how to make computers work properly, but we've only just
started.


> If you're interested in learning to program, either of these programs
> would 
> be lots of fun to learn, and you could have your own custom program to 
> control your MD written in a few days.
> 
It takes a certain mentality to enjoy this kind of stuff.

> If you do have the specs on the protocol, send it to me and I'll put 
> together a little sample program to get you started.
> 
I can't fault you on this, top community spirit !

simon


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MD: Oldies FM uses minidisc..

1999-08-20 Thread Simon Gardner


Saw this in the the Telegraph (UK) yesterday:

-->>
A RADIO station that plays only crackly old gramophone music and bans
anything recorded after 1959 has been launched for pensioners.

Angel Community Radio pumps out Glenn Miller, Vera Lynn and Mario Lanza 24
hours a day from its studio above the offices of Age Concern on the Isle of
Wight. Most of its presenters - the station does not use the words disc
jockey - are aged over 60 and two are over 75.

The music, which is transferred from old 78s on to mini-disk with no loss of
sound distortion, is interspersed with phone-ins and occasional health
advice.

The station came up with the idea after it found that older people were
constantly searching the airwaves for something they liked. Tony Smith, the
station manager, said: "The rule is that the music must have been recorded
before the Sixties. Music changed rapidly from then on, and so did radio."

It is broadcasting on 87.7FM for a one-month trial to parts of the South
Coast.
<<--

I just found it ironic that such a retro "nothing after 1959, no-one younger
than 60" station should choose such a modern, technological recording medium
(even if they can't spell minidisc right) :)

Simon


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MD: Data CD's for Audio

1999-08-20 Thread Geoffrey Goode


Sometime back someone on this list stated how to modify a data CD-R on a
computer CD-Writer to enable it to be written to by a stand-alone audio
CD writer.  I would appreciate it if that person could re-iterate how to
do this.  

I know that if you put an audio track down on the data CD-R, as a multi-
session, you can then record on an audio CD writer, but how do you set
it up to do this without putting down that track.  I believe that we are
talking about setting one Byte from a data marker to audio.

Thanks
-- 
Geoff
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RE: MD: Digital input bit length on JB920

1999-08-20 Thread Simon Barnes



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

> Rick Pali wrote:
> 
> From: Simon Barnes
> 
> > The original CD is coded 16 bit, so any bits added by
> > the player have been made up by guessology.
> 
> The *solution* was to run a higher bitlevel so that the inaccurate least
> significant bits were stripped before output. That is, an 18 bit DAC was
> used and the 'top' 16 bits did all the work. Most of the errors occurred
> in
> the 'bottom' two bits which were not used in the audible output anyway so
> it
> was a huge boost in the accuracy of the output signal.
> 
> For all intents and purposes, it solved the problem of low-level linearity
> errors in the 16 bit output.
> 
I have no problem with this, but don't find it relevant. The CD only
contains 16 bit data. When this is transferred to the MD input, it is not
converted back to analog, so D/A linearity is not a factor. The ATRAC
algorithm will apply all sorts of hoopla to the digital data stream, and it
is conceiveable that the result might be WORSE if you tell it to use all 18
bits of input data if the bottom 2 bits are just the result of some
guesswork by the player.

simon
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Re: MD: decibel scale (was analog follow-up question)

1999-08-20 Thread Colin Burchall


David W. Tamkin wrote:

>The rodent wrote,
>
>| More directly useful to
>| you, doubling volume (energy) is 10dB, so a 20dB sound is twice as loud
as
>| a 10dB sound, and a 110dB sound is twice as loud as a 100dB sound.
>
>That doesn't sound right.

Speaking in the purely subjective terms of perceived volume, it is generally
observed that approximately 9 times the power equates to double the volume.
It definitely is NOT right to factor perceived volume linearly with energy.

>As to doubling the volume, that's subjective, isn't it?  "Twice as loud" is
>a lot like "twice as dark" or "twice as happy."

As a rule of thumb, 10dB is very close to an average person's perception of
doubled volume.

-cb

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