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Subject:Copy/Paste problem
Posted by: Doug_Marshall
Date:4/13/2015 12:11:42 AM

Hi Everybody,

I have four 96k 24-bit mono audio files that I want to combine into one 4-channel stereo .wav file with the same 96/24 properties. Creating the new file seems to go fine, the copy/paste function seems to work and the imported material looks fine on the screen. However, although the individual files play just fine, the new 4-channel file won't play at all; and if I save, close and reopen the new file it comes up blank, though of the correct length.

I tried making 2-channel files as well, and they fail too, in the same way. What am I doing wrong?

Doug

Subject:RE: Copy/Paste problem
Reply by: ChristoC
Date:4/13/2015 1:38:03 AM

> combine into one 4-channel stereo .wav file
- Presume you mean "one 4-channel interleaved .wav file" ?
- Presume you are using SFP11_b299 ?

I took four 24b/96k mono wav files, all different lengths, and created a new (empty) 4-channel wav file, inserted the four mono files; saved and reopened = no trouble.
I repeated all that for 4-channel wav files up to 4.2GB (approx 1hr 2 minutes, with Preferences | General set to "Allow Wave renders up to 4GB")

How long are your original mono files?
A standard 96kHz/24bit Mono WAV file can only be 2.1GB = 02:04:16:12 (in 25fps timecode)
Therefore a standard 96kHz/24bit 4-channel WAV file can only be approx 30 minutes long....
unless you have Preferences | General set to "Allow Wave renders up to 4GB", in which case you can double all times above.
If you attempt to save a file larger than permissible you should, however, receive an Error Message.

Subject:RE: Copy/Paste problem
Reply by: rraud
Date:4/13/2015 8:29:40 AM

I usually use Sound Devices' Wave Agent to create a 'Poly' BWF (broadcast wave file) out of multiple tracks. The copy> paste process is not necessary.
Wave Agent also offers selective playback, metadata editing that includes time code manipulation.
For editing though, SF can't be beat.

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