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Creating an 8 hour file. Is there a time limit on AIFFs?

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Creating an 8 hour file. Is there a time limit on AIFFs?

Postby dix » Mon Jun 18, 2012 12:01 pm

I'm trying to render an 8 hour long file for an installation. Even though I have DP set to create 16bit AIFFs in the prefs merging the files needed created a WAVE64 file for some reason (i've tried WAVE and SD2 files w the same results). The file plays back fine in DP, but is not recognized by my Mac as playable. I've noticed merging anything over 6h20mins creates a WAVE64 file. If it's less than that DP creates files as expected. Converting the WAVE64 to AIFF creates a file with playback errors that show up a few hours in. Are there time limits within DP and/or the Mac OS that are preventing this? How can I create a file like this?

Thanks!
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby barreltone » Mon Jun 18, 2012 12:31 pm

Not sure about time, but there is a file size limit for aif files, either 2 GB or 4 GB, depending on the resource. WAVE64 files don't have that limitation.
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby stephentayler » Mon Jun 18, 2012 12:58 pm

Does your file have to be interleaved? It probably is the 2GB limit kicking in - I had difficulty rendering some long surround files until I set DP to de-interleaved.

Cheers

Stephen
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby dix » Mon Jun 18, 2012 1:03 pm

barreltone wrote:Not sure about time, but there is a file size limit for aif files, either 2 GB or 4 GB, depending on the resource. WAVE64 files don't have that limitation.
But they're not supported on standard Macs :(. …poking around I now see that there's a 4gb file size limit on wav and aif files, which is exactly the limit I'm hitting. I guess I will need to figure out a -4gb solution. What plays WAVE64 files? Google is not clear so far. Can all standard DAWs handle them?
Last edited by dix on Mon Jun 18, 2012 1:04 pm, edited 1 time in total.
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby stephentayler » Mon Jun 18, 2012 1:03 pm

What is going to be the final playback system??
Stephen W Tayler: Sound Artist
http://www.chimera-arts.com
http://ostinatomusic.com
http://stephentayler.com

Mac Pro 8 Core 2.8Ghz 16Gb RAM, MacBook Pro, 2Gb RAM, OSX 10.8.4, DP 8.04, PT10 & 11, Logic 9.1.8, MOTU Traveler, Ultralite Mk 3 Hybrid, MC MIx, MOTU VIs, Waves, Izotope Everything, Spectrasonics, SoundToys, Slate, Softube, NI Vintage Compressors, spl Surround Monitor Controller, spl Auditor Headphone amp, Genelec 1031A, 1029 5.1 system, Sontronics Mics, iPad etc..
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby dix » Mon Jun 18, 2012 1:04 pm

stephentayler wrote:What is going to be the final playback system??
Good question. I'm looking into it.
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby stephentayler » Mon Jun 18, 2012 1:07 pm

If you use iTunes, sections can be set to play seamlessly, as in an album, and it can be set to loop.
Stephen W Tayler: Sound Artist
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http://ostinatomusic.com
http://stephentayler.com

Mac Pro 8 Core 2.8Ghz 16Gb RAM, MacBook Pro, 2Gb RAM, OSX 10.8.4, DP 8.04, PT10 & 11, Logic 9.1.8, MOTU Traveler, Ultralite Mk 3 Hybrid, MC MIx, MOTU VIs, Waves, Izotope Everything, Spectrasonics, SoundToys, Slate, Softube, NI Vintage Compressors, spl Surround Monitor Controller, spl Auditor Headphone amp, Genelec 1031A, 1029 5.1 system, Sontronics Mics, iPad etc..
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby dix » Mon Jun 18, 2012 4:04 pm

stephentayler wrote:If you use iTunes, sections can be set to play seamlessly, as in an album, and it can be set to loop.
Good idea. I'll just make two files and create a playlist that plays through the break. Thanks!
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby barreltone » Mon Jun 18, 2012 10:58 pm

Nice solution!
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby stephentayler » Mon Jun 18, 2012 11:34 pm

Actually, if one is clever with editing the start and the finish the playlist can be set to repeat seamlessly too, meaning that there never needs to be a break at all.

I can imagine simply using an iPod for such purposes!

Cheers

Stephen
Stephen W Tayler: Sound Artist
http://www.chimera-arts.com
http://ostinatomusic.com
http://stephentayler.com

Mac Pro 8 Core 2.8Ghz 16Gb RAM, MacBook Pro, 2Gb RAM, OSX 10.8.4, DP 8.04, PT10 & 11, Logic 9.1.8, MOTU Traveler, Ultralite Mk 3 Hybrid, MC MIx, MOTU VIs, Waves, Izotope Everything, Spectrasonics, SoundToys, Slate, Softube, NI Vintage Compressors, spl Surround Monitor Controller, spl Auditor Headphone amp, Genelec 1031A, 1029 5.1 system, Sontronics Mics, iPad etc..
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby dix » Tue Jun 19, 2012 1:41 am

Problem there is that there is an overlap. The first time through the intro is clean. The 2nd time through and all subsequent times through the intro has the tail of the outgoing loop overlapping it. …the two big file solution seems perfect actually. thx!
3ghz 8-core (2008), 10.6.8, 12GB RAM, NVIDIA GeForce 8800 GTS, DP (latest version), 2408mk3, Apogee Ensemble, UAD-2 Solo, UAD-1::: 15-inch MBP (early 2011) 10.6.8, 4GB, Mbox2 Mini
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby stephentayler » Tue Jun 19, 2012 2:53 am

Excellent. It's always fun to brainstorm topics like this... I'm always looking for solutions for such things, especially when it comes to unconventional situations such as sound and visual art/installation work.... and cost-effective ways to achieve them!!!

Cheers!!

Stephen
Stephen W Tayler: Sound Artist
http://www.chimera-arts.com
http://ostinatomusic.com
http://stephentayler.com

Mac Pro 8 Core 2.8Ghz 16Gb RAM, MacBook Pro, 2Gb RAM, OSX 10.8.4, DP 8.04, PT10 & 11, Logic 9.1.8, MOTU Traveler, Ultralite Mk 3 Hybrid, MC MIx, MOTU VIs, Waves, Izotope Everything, Spectrasonics, SoundToys, Slate, Softube, NI Vintage Compressors, spl Surround Monitor Controller, spl Auditor Headphone amp, Genelec 1031A, 1029 5.1 system, Sontronics Mics, iPad etc..
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Re: Creating an 8 hour file. Is there a time limit on AIFFs?

Postby mikehalloran » Tue Jun 19, 2012 7:57 am

Since 4G is a hard limit, mp3 at 320/AAC or mp4 would be the way I would chose. Playback in iTunes.
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