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 CEP2 jumps when recording vinyl
 
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j8hn


Location: United Kingdom


Posts: 6


Post Posted - Sun Mar 16, 2003 2:40 pm 

Hi Guys,
Using CEPro2 with Audiophile 2496 card. No problem until now. When recording from LP using my hifi burner as a level adjustment stage and also as an ADC i'm now getting jumps in my recordings, just a fraction of a second. They sound like clicks and pops from the vinyl i'm recording but when i mag the waveform they come up as sudden jumps in the wave like a split second has been spliced out. This happens whether recording analogue or 16bit SPDIF from the hifiburner adc.
Have no problem recording analogue with Nero Wave editor, therefore, I assume the problem is with CoolEdit or perhaps CE plus the MAudio Audiophile 2496.
I'm getting things done [ie recordings] with Nero and can edit without problems in CEPro2 but i'd like to get CEPro2 back on its recording feet again [it has worked fine in the past]

Any help gratefully received, and many thanx in anticipation

j8hn
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djwayne


Location: USA


Posts: 583


Post Posted - Sun Mar 16, 2003 3:22 pm 

I had a similar problem coming out of my mixer a couple of weeks ago, I traced it out and it turned out to be a RCA connector on my cable from the mixer to the sound card, and was adding static and cutting out occasionally. I replaced the cable and all is fine. The bad cable looked like new, but as soon as I touched it or wiggled it a little, the static became very noticable.

With a turntable, I'd double check the wires coming off the cartridge, to be certain you have a good connection there.
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j8hn


Location: United Kingdom


Posts: 6


Post Posted - Sun Mar 16, 2003 3:31 pm 

Thanks 4 the input DJ, but what you suggest is not causing the fault as Nero Wave editor works fine with exact same setup!! The CEP2 waveform shows no spikes or gaps that a poor connection would cause. Instead these faults are "skips" in the waveform, as if a tiny section of wav has been deleted at random??!!
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SteveG


Location: United Kingdom


Posts: 6695


Post Posted - Sun Mar 16, 2003 4:38 pm 

You may find that experimenting with the CEP buffer setttings may resolve this. You seem to have established definitively that the S/PDIF output from your CD-writer in E-E mode (which is presumably what you're doing - in other words, straight through) is jump-free. I suppose that you could potentially have a clock conflict here, but the Audiophile should be able to run fine this way, so let's assume not...

But why don't you feed your turntable preamp output straight to the soundcard and record in 32-bit? If you do this, and normalise your recording afterwards, you will probably end up with a better sounding result anyway. In fact to get it appreciably worse, you would have to be under-running the Audiophile by more than about 30dB, and on the -10dBm input setting this is pretty unlikely, I would have thought. This is definitely the sort of application where the smallest amount of electronics before the best A-D converter you have, the better.

However you look at this, it's unlikely to be a generic Cool Edit problem, as it uses the Windows soundcard drivers to record anyway - which really just leaves the clocking and buffering, which you can adjust to suit your particular PC.

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j8hn


Location: United Kingdom


Posts: 6


Post Posted - Mon Mar 17, 2003 6:01 am 

Thanx 4 the reply Steve.

1stly I'm using the hifi-cdr-recorder just as a gain stage because the input of the AAudiophile s/card has no input gain adjustment. So i adjust the vinyl signal to 0dB using the input stage of the hifi-burner [kinda makes sense]

Will check out your 32bit idea if i can get enough gain at the input, was intending to go 24 96 eventually.

As regards clocking and buffering could u or anyone else elaborate a little and point me in the right direction.

I find the Audiophile 2496 card a total pain and might even consider a return to my old SB card!!

Still in the meantime i'll dig out the MAudio handbook and c if i can make some sense of it.

Thanks to both of u again 4 all the help:)
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SteveG


Location: United Kingdom


Posts: 6695


Post Posted - Mon Mar 17, 2003 6:25 am 

Options > Settings > System. And there is some advice in the help files as well.

You may possibly hold the unique distinction of being the only person in the known world to want to go back to a SB from an Audiophile!

And as far as levels are concerned, you may want to check out page 24 of the Audiophile manual, and possibly reset the card to use the -10dBv option, rather than the curiously named 'consumer' one...

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zemlin


Location: USA


Posts: 1156


Post Posted - Mon Mar 17, 2003 6:37 am 

I have noticed that CEP performance begins to suffer when I start running "low" on disk space. I have 2 60GB disks and 1 80 GBdisk. I don't have exact numbers, but it seems that if free space gets below about 10% of capacity on any disk, regardless of whether it has TEMP files or not - defragging does not help - performance gets choppy. CPU load while locking tracks and during mixdowns will go in peaks and valleys and the operation may take several times longer than normal.

You might want to make sure you have LOTS of free disk space.

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Karl Zemlin - www.cheap-tracks.com
Host of the World Wide Cool Edit Collaboration Procedural Debate
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j8hn


Location: United Kingdom


Posts: 6


Post Posted - Tue Mar 18, 2003 6:27 am 

Mega Thanx guys,

Blowe me thought 2 myself "naa I've got loadsa disc space" just checked my main HDD and it's chocca!
So Zem u might have hit the nail on the head, if the problem was as simple as that i'm gonna b kicking myself coz as usual I've upset every setting there is and now I've got 2 get everything back on track.

Steve your help has been terrific, did read the 2496 manual cvr 2 cvr when i got it, but couldn't digest or retain any of the infoA 10dB cut should bring my gain problem down nicely as i say above i only hope i can re-set the settings i've gone and altered.

The Audiophile card is 1 of the few bits of kit i've bought and not heard an appreciable improvement. I think few ppl actually check out the SB performance fully in a decent s/system my old card was an oem 5.1 live it was v easy 2 use and to say it was 5x cheaper than the 2496 the sound quality was only marginally inferior.
The Audiophile card is also a lot quieter ie it has a lower output and :. doesn't "drive" my pre-amp fully.

Bigup thks 2 u all,

j8hn

ps wouldn't u know it soon as i hit probs and start posting i'm snowed under with work and so have little time for messin about, but will get back 2 u and let u know how its goin
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