Re: MD: sound blaster live value

2000-04-16 Thread Hannes Rohde


Brent Harding wrote:

 But, if I'm on netmeeting and turn the volume for the show down,
 could I keep recording, so I can record the whole show including
 the part where I'd be on? There's this show I listen to sometimes
 that takes calls on netmeeting, and I'd like to be able to record
 it, and be able to participate in it.

Hmm, sounds like it's going to be complicated:
Although I don't know NetMeeting, I believe it requires your part of
the communication to be recorded to the computer. To do this, you have
to set the recording setting from "what you hear" to "microphone" or
you will be recording your voice plus the continuing show and send it
to them, which is probably not what you want to do...

Another problem could arise because you would then be recording to two
applications at the same time (your own recording plus the NetMeeting
recording). I have not tried it, but the SBLive might not be able to
do this...

 Any way to do it? If I bought a minidisc recorder, would that help any?
Well, you could record to minidisc :-)

 I was thinking that thing mentioned on the list about the idea of
 playing a recording into a remote would be good, to have it d
 things when I want to, how does it work? When you play it, how does
 the minidisc recorder know what to do with the other devices at the
 time? Like, if I recorded various shows from satellite or something,
 would I be able to have the computer or other source turn on and turn
 down the program during the commercial break and come back on when
 it's done, possibly putting music in between, or just pausing the
 minidisc so I can have enough space to record without having to
 do anything with it?

Hmm, can't comment on this...

Bye,
  Hannes

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Re: MD: sound blaster live value

2000-04-15 Thread Hannes Rohde


Brent Harding wrote:

 Mine has digital out, don't know what kind, it just says digital
 out. Also, about the sblive value, can it be made to allow recording
 from the mike and wave output at the same time, so they mix in one
 file? Or can it record more than one thing, so I can record a
 netcast and talk on it at the same time without missing any of it?

You cannot record from several sources at one time.
However, there is a setting called "what you hear" for recording,
which will record anything you can hear over the speakers.
So it is possible to enable both wave playback and the mike for
playing, and then recording it.

Bye,
  Hannes


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Re: MD: Generational Loss

1999-12-07 Thread Hannes Rohde


Eric Woudenberg wrote:

 Department of Computer Science V, University of Bonn, Bonn, Germany

 Please do NOT get me into trouble by spreading this to newsgroups or
 reporting me to the authorities, alright? This is for educational
 purposes only.

Haha! Got you! :-)
Being a student at the aforementioned university, I will send you my
worst professors to bring you punishment for the crimes you did!

No, not really - just kidding :-))
It's great to see that the folks here at university sometimes do
usefull research - more often than not, the results from years of
work are more or less useless to anyone except the writer, and
thus are doomed to collect dust in the shelves of the library...

But why did you have to mirror it?
The original document (in compressed postscript format) is available
at http://leon.cs.uni-bonn.de/~kurth/diss_kurth.ps.gz

Now, wish me luck for my exam with the director of that institute
in January 2000... Have you seen the topics of the other papers?
It's terrible! All I can do is wish for a catastrophe to wipe out
this particular institute during that y2k night :-))

Bye,
  Hannes
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Re: MD: Generational Loss

1999-12-07 Thread Hannes Rohde


I wrote:

 But why did you have to mirror it?
 The original document (in compressed postscript format) is available
 at http://leon.cs.uni-bonn.de/~kurth/diss_kurth.ps.gz

Well, I just had a look at it, and found it to be in German language...
Not exactly usefull to most readers here, so forgive my premature
posting :-)

Bye,
  Hannes
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Re: MD: Sony MD discam (OT)

1999-12-01 Thread Hannes Rohde


Hi!

 MO uses a laser to heat a surface and a magnetic head to change the direction
 of the attoms in this surface. It's based on the 'curry effect'.

You might see some curry effects when you order diner at an Indian
restaurant, but as far as I know, md uses the "Curie"-effect to
achieve data storage :-)

Bye,
  Hannes
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Re: MD: md-l-digest V2 #439 - Automatic Reply

1999-11-30 Thread Hannes Rohde


Hi!

Hmm, is it just me or is the idea of receiving this every day
until January, 2nd a little disturbing? :-))

Mark Holmes (or rather his email program) wrote:

 I'm on leave until 2 Jan.  Please contact Ade Morris (AMORR x3553)
 for PAFS problems or Jeffrey Bowman/Jason Hiscocks (JBOWM x4394,
 JHISC x4320) for CIMS.


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Re: MD: Quality of Digital Out on CDROM

1999-11-28 Thread Hannes Rohde


Stainless Steel Rat wrote:

 | I just want to know if there is a difference of quality of
 | the digital out between different CDROMs, because my CDROM
 | is a 8X Goldstar (GCD-R580B) and perhaps it would be better
 | to buy a new one :)

 Nope.  What comes out of the optical jack on one unit is 100%
 identical to what comes out of the optical jack on another.

That would be in case of flawless reading. When the drive has
problems reading the disc, error correction has to be applied,
which probably alters the data. Some drives could have reading
problems where others still can read without error correction.

Also, many cheap drives do strange things in the subcode channel:
wrong SCMS bits, wrong indication of in/out of track, error flag
set all the time - that's what was reported in a magazine article
last year. Problems like those could also apply to the mentioned
Goldstar drive...

But unless there are severe problems (audible errors in the spdif
stream, not able to copy because of wrong subcode channel data)
with the drive, I would not buy a new drive just for this purpose...

Bye,
  Hannes

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Re: MD: MO technology and MD data usage

1999-11-27 Thread Hannes Rohde


Remko van der Vossen wrote:

 if you consider that a MD recorder can accept a streaming
 digital input of CD quality audio (via the optical in), encode
 it with ATRAC, AND write it to the disk, all in real-time -
 then i think you'll find the bandwidth of the system quite
 sufficient for removable media purposes on a PC.

 Mind you that 44.1 KHz stereo 16 bits is only 176 Kb/s and that
 ain't much at all,

That's the speed of a 1x cdrom drive... Anyone remember those things?
Compared to todays standards, it's awfully slow...

(The 44100*2*2 calculation is not 100% correct for minidiscs: ATRAC
compresses the audio data to 1/5 of the ammount, so transfer speed
could be reduced to 1/5 of 176kB/s, but the minidisc units still
read/write at full speed, and read/write operations only take 1/5
of the time; the unit is idle 4/5 of the time)

 granted a normal floppy drive is slower, but a decent Zip drive
 can easily manage 600 Kb/s

... which is one reason for zip's success and MD/Data's failure.

Despite all drawbacks, I would still like to see a decent MD/Data
drive: takes audio MDs, allows for 120-140 MB of data, will record
mp3s/wave files, let's me title discs via keyboard...

After all, minidiscs look far better than zip discs!
(Imagine booting your favourite OS from a "Hello Kitty" disc!)

Bye,
  Hannes

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Re: MD: Off topic: mp3 editing tools?

1999-11-14 Thread Hannes Rohde


Dan Frakes wrote:

 Hannes Rohde [EMAIL PROTECTED] wrote:
 Does anyone know if there are tools to edit mp3s in the mpeg domain,
 without the conversion mp3-wav-mp3?
 
 I could use a tool that cuts single mpeg frames from songs to remove
 clicks or long intros from songs...
 
 You didn't mention what platform you're using. Mac, Windows,
 Linux, etc.?

Oops... :-) Well, the obvious standard: Windows, but Linux would
also be an option. I already got the tool suggested by Lars Soderman,
and I am quite satisfied with it...

Bye,
  Hannes

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MD: Off topic: mp3 editing tools?

1999-11-11 Thread Hannes Rohde


Hi!

Does anyone know if there are tools to edit mp3s in the mpeg domain,
without the conversion mp3-wav-mp3?

I could use a tool that cuts single mpeg frames from songs to remove
clicks or long intros from songs...

Bye,
  Hannes


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Re: MD: Hesitating sound

1999-10-29 Thread Hannes Rohde


Hi!

Although this discussion has been taken to private mail, I want to
add two possible solutions to the problem of "stuttering" sound:

1.) Buffering: I don't know about winamp, but all mp3-players I
have allow to set the size of a buffer for decoded audio data.
If this buffer is large enough, playback should continue even
when the cpu is busy (until the buffer is empty, that is).

2.) Busmaster drivers for the HD: Check if your harddisks are set
to busmaster/dma transfer mode. That way, harddisk reads/writes
will cause much less cpu load. These settings can be en-/disabled
for each harddisk in the control panel.

Bye,
  Hannes

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Re: MD: Found a CD that cannot be digitally recorded on MD

1999-10-11 Thread Hannes Rohde


Stainless Steel Rat wrote:

 Same original CD and player, different recorders, different MDs, same
 problem.  Though to be honest, it is worse on the 702mk.  I originally
 thought it might be a problem with Sharp's ATRAC, but I had similar
 results on the Sony unit.

The Sharp 70x series have a known problem with some bass sounds,
resulting in strange distorted sounds or clicks at critical
passages. Sony units should not be affected by this, though...

Maybe you have discovered a bug in Sony's Atrac algorithm?

Bye,
  Hannes
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MD: OT: advises for designing audio mixer?

1999-10-10 Thread Hannes Rohde


Hi!

I am designing an audio mixer for my stereo at the moment, but
have run into some problems. Maybe somebody here can help me:

Can anyone here provide hints or schematics for using the Philips
chip TDA1074A as a channel fader? 

Alternatively, suggestions for other circuits that will do the same
would also be helpfull...

Here is a description of what I am trying to do:

To avoid problems with the "cheapo" potentiometer sliders I want
to use for the faders, I wanted to let a TDA1074A do the fading and
the potentiometers just deliver a control voltage.

From the information in the datasheet, this task is just what the
TDA1074A is designed for, but I am having troubles getting it to work.

At the moment, it is connected in the manner suggested in the data
sheet, but the control behaviour is quite different from what I
expected: I can't fade a signal down to zero (the whole lower half
of the fader range has only little effect on the signal), while there
is a steep rise of signal level at the upper end (plus there is a
noise when fading to the upper end, but that might be caused by
the potentiometer).

What I'd like to get is a logarithmic or linear curve from zero
(- infinite dB) to 100 %.

Bye and thanks in advance,
  Hannes

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Re: MD: Sharp adapter

1999-09-29 Thread Hannes Rohde


Tugrul Tanyol wrote:

 Thanx for the reply Ian. I wonder what happened to the original
 adapter. Today we measured the output of my 220-110V convertor
 to see that it supplies exactly 119V.

Your adaptor might be delivering this high voltage only when not
under load. If you connect the target adaptor to it, the voltage
might be just fine; this behaviour is quite common with "cheap"
transformators.

Bye,
  Hannes

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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: SB16 and S/PDIF signals.

1999-07-28 Thread Hannes Rohde


Marc SPARC wrote:

 Do you have an idea of the SB16 uses internal S/PDIF signals,
 or other signals we can hook up off the SB16's main chip and
 convert to S/PDIF ?

Some version use SPDIF.

There are some schematics etc. on this page:

   http://www.esrac.ele.tue.nl/~jeroens/tech/sb16-spdif.html

Bye,
  Hannes

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Re: MD: Sharp 702 EEPROM EEPROB

1999-01-03 Thread Hannes Rohde


[EMAIL PROTECTED] wrote:

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

This are default values from the service manual:

BASS settings:
  BS1_  02h
  BS2_  A4h
  BS3_  C4h

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

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

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

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

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

Bye and good luck,
  Hannes

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