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Author Topic: Sound Devices Audio Record Time Calculator  (Read 1099 times)

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Offline pdxdanmusic

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Sound Devices Audio Record Time Calculator
« on: September 14, 2015, 12:42:02 PM »
I saw this and tried it for my 16 GB card 2496 stereo and got 8:05:07.
On my PMD661 the card gives me 7:43+ a few seconds. Quite a bit of difference.

http://www.sounddevices.com/support/tech-notes/audio-record-time-calculations

Offline jefflester

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Re: Sound Devices Audio Record Time Calculator
« Reply #1 on: September 14, 2015, 08:45:57 PM »
Probably just comes down to "16 GB" in retailer speak does not equal "16GB actual storage size", more like 16 billion bytes.
If you put the empty card in a computer what does it tell you the capacity is?
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Offline aaronji

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Re: Sound Devices Audio Record Time Calculator
« Reply #2 on: September 15, 2015, 03:34:12 AM »
^ That's what I thought too.  It's about four or five percent; that could be the difference between 1000 and 1024 plus some root files and whatnot from the recorder...

Offline pdxdanmusic

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Re: Sound Devices Audio Record Time Calculator
« Reply #3 on: September 15, 2015, 02:22:04 PM »
Probably just comes down to "16 GB" in retailer speak does not equal "16GB actual storage size", more like 16 billion bytes.
If you put the empty card in a computer what does it tell you the capacity is?

That is it exactly but Sound Devices doesn't mention it. In the PMD661 manual it worked out to 7:28. 15 GB is a little closer 7:38. 64K used by the 661 for overhead.

 

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