Topic: 24bit files reaching 2GB max file size---solutions????

[nickgregory]

good god, dont know how I missed that...have to read through it when I am not bleary eyed...I udnerstand the problem I believe that SBEs are created on a batch resample which I saw on my own.  for the 16 bit output what i Have done is when encoding to flac, always check on align on sector boundaries, which I *assumed* fixed it....will have to read through the thread to confirm

[dmonterisi]

good god, dont know how I missed that...have to read through it when I am not bleary eyed...I udnerstand the problem I believe that SBEs are created on a batch resample which I saw on my own.  for the 16 bit output what i Have done is when encoding to flac, always check on align on sector boundaries, which I *assumed* fixed it....will have to read through the thread to confirm

it's not that fun of a read...basically, i don't think flac fixes the problems by fixing the sbe's because the resampling algorithm seems to act differently at the end of the file. 

[wbrisette]

Wayne,
Has Howy at Deva thought about using NTFS (or any other partition types) to avoid file size limitations completely?

Yes. Zaxcom developed a file format called MARF. This is what they started using on the Deva II 6 years ago and they are still using it today. 4 GB partitions were put in place because DVD-RAM discs which for a long time were the only media that the Deva could write to, could only handle slightly more than 4 GB. Plus most of the software out there couldn't handle these larger files, so it was driving post houses crazy.

Wayne

[mmedley.]

Wayne,
Has Howy at Deva thought about using NTFS (or any other partition types) to avoid file size limitations completely?

Yes. Zaxcom developed a file format called MARF. This is what they started using on the Deva II 6 years ago and they are still using it today. 4 GB partitions were put in place because DVD-RAM discs which for a long time were the only media that the Deva could write to, could only handle slightly more than 4 GB. Plus most of the software out there couldn't handle these larger files, so it was driving post houses crazy.

Wayne

Cool. That is good to know. I figured they would take that into consideration. The DVD-RAM thing is understandable, but is it still stuck to that standard or are other media formats being taken into consideration now like DVD-9 (DL), etc?

+T

[Evil Taper]

ok, so lets say we're recording something like:

mics>pre>adc>laptop @ 24/96 and the show is a continuous 3.5 hours without a set break.  what software would allow you to record something this huge save it as a single file?  Would a wavelab recording made with auto splitting create an audible glitch between the files or would they be seemless?

[wbrisette]

The DVD-RAM thing is understandable, but is it still stuck to that standard or are other media formats being taken into consideration now like DVD-9 (DL), etc?

Starting with the Deva IV (there never was a Deva III), a FireWire port was put on the box, this allowed hard drives to be added along with DVD-RAM drives, etc. One thing to remember is 98% of the Deva users don't ever touch their audio, post production facilities do. This means they are at the mercy of those facilities when it comes to how they can turn in their stuff. For most that still means using DVD-RAM because they have to use the Fostex DV40 to read back their data. It also means using UDF as the format of the disc, making sure the DV40 has the latest firmware, not putting just 3 channels (or tracks) on the disc (the DV40 has issues with 3 channel masters)... For as advanced as the video and film industry has gotten, there are areas where they simply don't move ahead and audio is one of them. Most post production houses have had 6 years to figure out non-linear recorders, yet film sound crews still struggle with post production houses using outdated firmware and software which means a lot of the advances made have them going backwards (in some cases the DVD-RAM discs are transposed back onto DAT and re-stripped with time code). It simply makes me very happy that I don't have to deal with these issues since I do all my own post production work.

Wayne

[kindms]

ok, so lets say we're recording something like:

mics>pre>adc>laptop @ 24/96 and the show is a continuous 3.5 hours without a set break.  what software would allow you to record something this huge save it as a single file?  Would a wavelab recording made with auto splitting create an audible glitch between the files or would they be seemless?

Wavelabs auto-split feature is seamless. I have been using it forever. It basically makes recording a set it and forget it as long as u have batteries.

[mmedley.]

Thanks for the explanation Wayne. Very cool and interesting!

+T