On Fri, 29 Sep 2000, Peter Forest wrote:
Due to the recording mechanisms of some MD recorders, the MD-Port DG1 is
known not to be compatible with the units from Sharp, JVC, or the Sony MZ-R3
and MZR-50. It may also not function with home recording MD decks.
This is interesting. Does
On Sat, 26 Aug 2000, David W. Tamkin wrote:
I So, removing the first sample of the right channel before feeding into the
I MD will restore the original when it is monauralized.
That's what I thought, but it gave poorer results than removing one sample
from the left channel's leading
My apologies for the slow reply. Also I will be away for the next 5 days,
but I will try to respond to any messages when I get back.
On Tue, 22 Aug 2000, David W. Tamkin wrote:
OK, I'm confused. I thought originally that you said that the Sony machines
were combining the right channel of
On Tue, 22 Aug 2000, Timothy P. Stockman wrote:
I beleive the ADC outputs a normal stereo signal. The channels are combined
in the digital domain *after* the ADC, at least on the JE520.
On the JE520, probably, but I was referring to the R3, which probably
isn't combining them in the
David - did you do all the transfers digitally? If so, I am a little
puzzled... it certainly worked on my JE520.
Jonathan
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On Mon, 21 Aug 2000, David W. Tamkin wrote:
| If so, I am a little puzzled... it certainly worked on my JE520.
What is "it"? Lopping off one sample from one channel in the leading
silence? (And again, which channel should we take it from?)
I didn't do this - I used the sine wave signal
On Mon, 21 Aug 2000, PrinceGaz wrote:
In what was admittedly a v.quick test under less than ideal conditions,
obviously an analogue stereo to stereo remained so, while all the other
analogue recordings were a mix of the left and right channels. There
was no measurable difference in the
On Mon, 21 Aug 2000, David W. Tamkin wrote:
(1) what is the "it" that certainly worked on your JE520?
What I meant here was that my observations listed on the MDCP page for
'bad' hardware in relation to the test samples there were made using my
deck and the wave files on the MDCP page,
On Sun, 20 Aug 2000, Timothy P. Stockman wrote:
When recording mono from analog, it appears that it would be best to mix to
mono before the signal reaches the MD, then connect only one input channel
of the MD, leaving the other unconnected. To get the level correct, the
digital record
Another question: is it compatible with existing hardware? From what I've
heard it is storing information on the disc, and the actual volume
reduction is happening on playback, so can existing hardware read the
information and do the volume adjustment?
Jonathan
On Mon, 7 Aug 2000, Ralph Smeets wrote:
Why should it be a bug? It could be a way to get around the following
problem:
L = -R Ie, The left channel has the opposite phase of the right
channel. Thus (L+R)/2 would result in 0 With (L(t)+R(t-1))/2 you keep
a signal!
You have a good
I have been messing around with my MD recorder again this morning and I
think I may have figured out what is happening.
The results I posted previously show a frequency dependant loss in volume,
which increases as the frequency increases.
If the signals from the two input channels were out of
On Sun, 6 Aug 2000, Eric Woudenberg wrote:
May I ask that you please write up your findings carefully and let me
post it as its own web page on the MDCP?
Sure. I'll get on to it tomorrow.
It would be interesting to try this experiment on some other
equipment, a portable, and a machine
On Fri, 4 Aug 2000, David W. Tamkin wrote:
And a volume of -1.2 dB will still light up the last bar, I believe.
Yes... I think the values marked on the scale are the top levels for each
bar.
All right; where do I get a different tone generating program? It can write
.wavs, right? Then I
On Thu, 3 Aug 2000, David W. Tamkin wrote:
| Unfortunately I have no way of getting the SPDIF back into the computer
| again so I'll have to rely on the MD's level meter.
With no digital ports on my soundcard, the only way I can get the data back
into the computer is to copy the MD to
On Wed, 2 Aug 2000, David W. Tamkin wrote:
I had done an L-R on the original source track before copying it to MD, and
it flatlined. If recording to MD in mono knocks the channels out of sync,
there is no way to tell afterward, because the MD recording is marked as mono
and will play back
On Thu, 3 Aug 2000, David W. Tamkin wrote:
If the explanation were that the tracks got out of sync, then the soft parts
of the redundant stereo input would become louder as they got mixed with
louder volumes. Moreover, how can the two channels of an S/PDIF signal get
out of sync like that?
On Wed, 2 Aug 2000, David W. Tamkin wrote:
How do mixing routines in sound editors calculate their results? Do they
just take the arithmetic mean of the amplitude?
I'm not sure but I expect that some do.
An alternative explanation for the reduction in volume:
It's possible that in your
On Wed, 2 Aug 2000, PrinceGaz wrote:
I've found the best way to do monaural recording is to unplug one of
the RCA connectors (for a tape recording whichever has the lowest
recording level-- there is generally some discrepancy 'tween channels)
and take it from there. No L/R interference,
On Wed, 19 Jul 2000, J. C. R. Davis wrote:
I hope it WAS the 80 minute MDs that did this. I am about to petition
Best Buy to special order a JE520 as a replacement to my junked out
JE510, and I would like to think that it will last more than a mere 13
months!
I've had mine for 16 months
On Wed, 19 Jul 2000, Jonathan Irwin wrote:
I've had mine for 16 months now and it's still working fine. No problems
so far. They might only be able to get a JE530 now though.
Oops... I seem to have forgotten how to add up. Actually I've had it 20
months.
Jonathan
On Wed, 31 May 2000, Eric Woudenberg wrote:
I should be more explicit: would Sharp owners who have lost recordings
due to the Sharp's REC-PAUSE startup please speak up? I'm not looking
to justify my position, I really want to know if the Sharp's mode of
operation presents problems.
I have
OK... here goes.
There is basically very little difference between the R70 and R90 in terms
of important features.
The USB recording thingy is just a USB plug on one end with a digital to
analogue converter in the middle and a normal analogue 3.5mm jack plug on
the other end. AFAIK, it does
Sorry to waste bandwidth like this, but I made a small mistake in my last
post. In fact, the R70 has a non-LCD remote, not an R55 style one, so it
is even harder to use in the dark.
Jonathan
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Sounds like a flat battery to me... if there is not enough power available
then the LED in the optical transmitter might not be bright enough for the
detector in the MD to see it properly (hence the intermittant signal) but
the power LED would still be on. Try changing the battery.
Jonathan
On Mon, 24 Apr 2000, Rahim Anderson wrote:
Hi. I recently purchased a aiwa AM-f70 redorder unit, and so far, I've been
very happy with it. I put off buying a mp3 player, ended up being talked
into MD by a friend, and am rather happy. Now to the problem, at work I
have a crappy little
On Tue, 28 Mar 2000, Simon Barnes wrote:
What colour would you recommend ? I seem to have run out ...
You could always try green... you never know - it might even improve the
sound quality...
Jonathan
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On Sun, 19 Mar 2000, Mattias Bergsten wrote:
There already is working USB audio support in 2.3, and 2.4 is going to have
it. So I wouldn't worry about that. :)
Excellent! I haven't really been following 2.3 development very closely.
Does the Sony device comply to the USB audio specs?
At last! How long have we been waiting for this?
Just a pity it's going to be USB (and probably expensive if Sony are
making it) because I don't have any USB ports (an extra 10 UKP) and I
won't be able to use it with Linux unless somebody hacks a driver for it
in 2.3, which will probably take
On Wed, 8 Mar 2000, Daryl O. wrote:
snip
a long-play mode that "[c]aptures up to 5
hours, 20 minutes of stereo music on a single 80-minute MiniDisc." Does
anyone know anything about this? Discs recorded in this special long-play
mode couldn't possibly be compatible with older decks,
I once heard some argument to the effect that rechargeable batteries
are sometimes not recommended for certain equipment because their
internal resistance is different (lower?) and so could drop more
current into some circuits than they should take. Is this a bogus
argument?
It may be
does.
Does anybody know how I send the codes and what the delays should be? I
can write bytes to the parallel port already, and I can do high resolution
timing down to about 100 us if necessary.
Thanks,
Jonathan Irwin
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