I have had my camcorder repaired and all seemed fine until I went to capture
some footage. The audio is very poor, slightly distorted with the occasional
'static' pop and crackle at random points. The static is not on the tape
doesn't tend to appear at the same point twice.

Since the camera has just come back it is prime suspect but I expect to have
difficulty pinning anything on anyone due to the random nature of the
interference. I don't have a spare machine with firewire so I cannot
eliminate my PC, I only know it was ok and I would expect the firewire ports
to be pretty indestructible.Again not having another digital cam I cannot
try on my PC to absolutely eliminate the PC from blame.

Has anyone had any similar experience. My initial thoughts was that I was
picking up interference but I powered down all auxiliary kit without
improvement. The system is filtered and well earthed on the mains side.. I'm
running out of ideas.

Regards,

Martin

Sounds very much like a bad connection somewhere either with the connecting
cable or more probably inside the camera if you have just had it repaired.

"Zippy" wrote in message
...
I have had my camcorder repaired and all seemed fine until I went to
capture
some footage. The audio is very poor, slightly distorted with the
occasional
'static' pop and crackle at random points. The static is not on the tape
doesn't tend to appear at the same point twice.

Since the camera has just come back it is prime suspect but I expect to
have
difficulty pinning anything on anyone due to the random nature of the
interference. I don't have a spare machine with firewire so I cannot
eliminate my PC, I only know it was ok and I would expect the firewire
ports
to be pretty indestructible.Again not having another digital cam I cannot
try on my PC to absolutely eliminate the PC from blame.

Has anyone had any similar experience. My initial thoughts was that I was
picking up interference but I powered down all auxiliary kit without
improvement. The system is filtered and well earthed on the mains side..
I'm
running out of ideas.

Regards,

Martin

"loz" wrote in message
...

"Zippy" wrote in message
...
I have had my camcorder repaired and all seemed fine until I went to
capture
some footage. The audio is very poor, slightly distorted with the
occasional
'static' pop and crackle at random points. The static is not on the tape
doesn't tend to appear at the same point twice.

Since the camera has just come back it is prime suspect but I expect to
have
difficulty pinning anything on anyone due to the random nature of the
interference. I don't have a spare machine with firewire so I cannot
eliminate my PC, I only know it was ok and I would expect the firewire
ports
to be pretty indestructible.Again not having another digital cam I
cannot
try on my PC to absolutely eliminate the PC from blame.

Has anyone had any similar experience. My initial thoughts was that I
was
picking up interference but I powered down all auxiliary kit without
improvement. The system is filtered and well earthed on the mains side..
I'm
running out of ideas.

but furewire is a digital standard, not analog.
You cannot introduce crackles and pops into the audio stream alone during
transfer.
If there was a problem with a bad connection or something the whole stream
would
be corrupted, video and all.
However, there could well be noise entering your PC on playback. And if it
is
random then that would appear to be the cause. i.e. it cant be in the
recording,
else it wouldnt be random.

Loz



The noise is picked up on capture and will be there on the captured file
everytime at the same point.

If I try to recapture the same portion of video it is typically ok but may
get a crackle or other intererence at another point.

Btw, its audio only.. there is no glitch in the video.

On Sat, 26 Jul 2003 10:25:39 +0100, "Zippy"
Typedy Typed:

Has anyone had any similar experience. My initial thoughts was that I was
picking up interference but I powered down all auxiliary kit without
improvement. The system is filtered and well earthed on the mains side.. I'm
running out of ideas.

Sounds like a possible IRQ interrupt clash to me. Check that your
firewire doesnt clash with something thats resource hungry, i.e
soundcard/videocard.


--
I dont need a sig anyway