ati 9000 AIW sound problems during recording

  • Thread starter Thread starter kirk
  • Start date Start date
K

kirk

when recording TV broadcasts, and then playing back, the sound goes up and
down. was wondering if this is an issue with this video card, or possibly my
setup.

computer is

msi kt6 FISR /w AMD 2500 Barton core cpu
using on board 5.1 sound card
1 gig muskin CL2 memory
(2) Hitachi 120 gig SATA hard drives ( not raid setup )
Plextor CDR
Sony DVD+-DVDRW

was considering replacing sound card with SoundBlaster Audiology 2 Platnium
if it would fix sound problem.

thanks for any help with this
 
kirk said:
when recording TV broadcasts, and then playing back, the sound goes up and
down. was wondering if this is an issue with this video card, or possibly my
setup.
Click to expand...

I experience the same thing (also using 5.1 onboard sound). The problem seems to
occurr in the record phase; I recored MPEG files and played them back with 2
other non-ATI programs and the problem is still there (I also recorded MPEG
files using a non-ATI capture method, and they were fine).
 
when recording TV broadcasts, and then playing back, the sound goes up
and down. was wondering if this is an issue with this video card, or
possibly my setup.
Click to expand...

Part of the problem with this card is with the ***damned Macrovision crap
that is stuck in the drivers. We knew that it was causing problems with
the video sync but never occured to us that it was causing the sound
variations also. (Sometimes there is a digital MV signal riding on top of
the audio, but that shouldn't have been a problem in what we are doing.)

When we finally got an MV killed driver (Linux), the video sensitivity
problem went away - what surprised us was that the audio variations went
away also. Still haven't figured that out, but I am happy anyway.

Now if we could get a comparable WinXP driver, things would be great.

KRF
 
Are you saying that all programming from Time Warner cable (roadrunner) is
Macrovision encoded? I have this problem with the local news, PBS programs,
everything...
 
Are you saying that all programming from Time Warner cable (roadrunner)
is Macrovision encoded? I have this problem with the local news, PBS
programs, everything...
Click to expand...
I don't think so. But I have read where they have the ability to add
Macrovision to their video stream. Also that Hollywood wants the
Satellite companies to turn it on, but are being resisted since the
customers would blame Dish and DTV rather than the MV scumbags.

No, the problem is that on a less than perfect video signal (a la from a
VCR tape, etc) the ATI drivers will decide that they see a macrovision
signal and blow up the capture. We did a test where we fed an ATI AIW9000
card a perfect unmacrovisioned signal from a dvd player with a noise
injector attached to the input of the card in parallel. As we gradually
increased the noise factor the signal would degrade naturally to a certain
point then suddenly just croak as the anti-MV detection kicked in.

Answer - I sold the ATI card to a gamer and bought a professional capture
card that is macrovisionless. A buddy fixed his problem much more
cheaply by installing an old (I mean really old, like 1988 or so) VCR
between the playing VCR and the capture card as a pass through amplfier.
It apparently won't pass the MV signal and delivers a clean video at the
outputs. Worked with his DVD player also.

KRF
 
What video capture card did you buy that wasn't affected by the Macrovision
encoding?

I have been so frustrated I have been considering buying Nvida cinama cards
from Evga to see
if they have the same problems. I really like my ati card otherwise, and the
software that
it ships with. i had a ATI AIW pro card prior to this, and didn't have this
problems, i upgraded
because the AIW pro only had 16 megs ram, and didn't have all the feattures
of the AIW 9000.
 
KRF said:
I don't think so. But I have read where they have the ability to add
Macrovision to their video stream. Also that Hollywood wants the
Satellite companies to turn it on, but are being resisted since the
customers would blame Dish and DTV rather than the MV scumbags.

No, the problem is that on a less than perfect video signal (a la from a
VCR tape, etc) the ATI drivers will decide that they see a macrovision
signal and blow up the capture. We did a test where we fed an ATI AIW9000
card a perfect unmacrovisioned signal from a dvd player with a noise
injector attached to the input of the card in parallel. As we gradually
increased the noise factor the signal would degrade naturally to a certain
point then suddenly just croak as the anti-MV detection kicked in.
Click to expand...

I really don't think this is the problem. The video and audio are perfect when
viewing the realtime signal. The audio in this case has been processed (or
passed through) the video card and the sound card on it's way to the TV. The
problem occurrs when I record that same siganl.

Now I'm fairly sure it's not a Macrovision problem. I just finished recording
a satellite signal and playing it back. Same problem. I doubt that both Time
Warner and Dish Network are Macrovision encoding their signals.

I';ve waited a week for ATI to respond to my bug report (they allege 24-48
hour response time). I tried installing the drivers that came out Thursday; no
improvement...
 
I'm having the same problem with my 9600 AIW. Watching TV is fine. When
recording the volume goes up and down. I almost believe its a MacroVision
problem because the commercials are unaffected.

My crappy WinTV USB 1.0 doesn't have this problem. It's old and crappy but
it records fine w/o any volume problems.

-Valued
 
I tried to see if the problems are during shows or commercials. The volume
problem is during shows AND commercials but not all commercials. I also
recorded shows on 3 differnt channels yesterday and they all had the problem
 
Valued said:
I tried to see if the problems are during shows or commercials. The volume
problem is during shows AND commercials but not all commercials. I also
recorded shows on 3 differnt channels yesterday and they all had the problem
Click to expand...

I THINK the problem is related to ATI automatice gain control (not AGC on the
sound card/chip).. Twice I thought I had solved the problem, but I had recorded
a video clip where the volume was quite steady (a PBS news broadcast, for
example). There were no problems until the segment changed, and the (louder)
music came on.

I'm STILL waiting for a response from ATI - I sent in the problem report a week
ago Monday...
 
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