I’ve recently made some 6.5hrs sound files for a video installation running from some Rasberry Pi based units. The audio was rendered using some Max for Live Devices and Kontakt inside Ableton & of course I quickly discovered (don’t think I’d made anything longer than an hour before) that there is a 2GB wav file limit so the 6.5hrs were unexportable as a wav. I got around it using highest quality mp3, but not ideal. Has anyone come up on this issue and found a way around it with a non lossy export format?
I had thought .wav was limited to 4GB, or 6 hours 45 min of stereo 44.1kHz / 16-bit?
I’m not sure, it’s a bit foggy. Possibly an Ableton restriction the 2gb. I was trying to do 48/24. I’ve seen mention of a broadcast wav format doing 16tb & certainly my zoom recorder seems to have not trouble with super long wavs. Possibly I just should have bussed out to that in realtime!
I’d think that 2gb limit is dependant on how the drive is formatted - fat32 has that 2gb limit, although most modern formats don’t have that.
Give FLAC a try! Ableton suggests it as a workaround for the 2gb limit they have imposed for other file types.
PS I’m blown away that the WAV header is still 32bit… there is a W64 header format that’s 64bit and allows much longer lengths, but I guess nobody adopted it? :-/
You could try Core Audio Format. I’ve used that to record long multitrack files in SuperCollider and that might be an option in Ableton.
Thanks, I’m on Mac, seems to be file format
I wonder if you can get it in there as a export format, will give it a whirl be useful for many reasons
Ah, never heard of that though I see Logic can do it as export, will see if Ableton might be able to implement.
Yes, FLAC is natively supported by Ableton: https://help.ableton.com/hc/en-us/articles/211427589-Supported-Audio-File-Formats#native
AFAIK iTunes was the only major audio software that for some reason refused to support FLAC natively. Anyway FLAC is open source and very widely supported…
Beautiful! I had no idea.