studdering audio (solved)

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sparky7854
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Joined: Sat Sep 20, 2008 2:32 am

studdering audio (solved)

Post by sparky7854 » Tue Jan 13, 2009 4:14 am

Hi

I have run into a problem last night during a cue to cue. The audio that I am playing sounds like it is studdering or skipping. Anyone have any suggestions on what the problem might be??

Mike Daniell
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Re: studdering audio

Post by Mike Daniell » Tue Jan 13, 2009 8:19 am

This is probably due to "buffer underrun", which means the program is not filling the playback buffer fast enough from disk. You should find this will be fixed if you choose not to use the SCS internal mixer. The default playback buffer size when using the internal mixer is 200ms (it has to be short), but when not using the internal mixer the default playback buffer size is 5000ms.

Set the required options as follows:
  • Click on General Options / Permanent Options
  • Click on the Audio Driver tab
  • Select Do NOT use SCS internal mixer
  • Make sure the buffering and update options on this tab are all set to SCS default...
Then click OK to save the changes, and close and restart SCS.
Mike Daniell
Show Cue Systems Pty Ltd
mike@showcuesystems.com
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sparky7854
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Joined: Sat Sep 20, 2008 2:32 am

Re: studdering audio

Post by sparky7854 » Tue Jan 20, 2009 8:23 am

I would just like to say thank you for your help it fixed the problem perfectly.

Cheers

Sue Goodwin
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Joined: Sat Jan 21, 2006 6:04 am
Location: Rugby UK

Re: studdering audio (solved)

Post by Sue Goodwin » Mon Jan 26, 2009 9:04 am

I experienced this too at a rehearsal tonight - I have made the changes suggested and will check it at tomorrows rehearsal. It does appear to have limited how I view the wave display options - is it connected somehow?

Sue

Mike Daniell
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Re: studdering audio (solved)

Post by Mike Daniell » Mon Jan 26, 2009 9:19 am

Sue Goodwin wrote:It does appear to have limited how I view the wave display options
Which wave display option are you using, Sue, and how many devices do you have defined in your Production Properties?
Mike Daniell
Show Cue Systems Pty Ltd
mike@showcuesystems.com
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Sue Goodwin
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Joined: Sat Jan 21, 2006 6:04 am
Location: Rugby UK

Re: studdering audio (solved)

Post by Sue Goodwin » Tue Jan 27, 2009 9:01 am

Just back from rehearsal - not a judder or stutter to be found - a very useful piece of info. Thank you.

Regarding the second part of my query

If I am loooking in the right place, I have 2 physical devices showing in the production properties 1. Speaker/Headphones (IDT High Definition A) and 2. Independent (RTC) Headphones (IDT High D) There si also a no device option.

In the dispaly options I was using frequeny bars which since making the changes above is no longer a highlighted option - the only option is VU levels.

Regards

Sue

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