24/96KHz file size limit

farss wrote on 9/1/2003, 11:57 PM
I just tried rendering out a track as 24/96 but hit a limit at the 2 GByte mark.

Is there anyway to get similar resolution and produce a file that I can also bring back into VV?

Reason for doing this is rather odd.

I have a soundtrack which has a significant part WAY down in level due to a bad mix from a desk at a live event. When I wind the level right up and with a fair amount of compression I got horrible artifacts which makes sense given the limits of 16/48K so I figured I'd wind the gain up with no compression and render out at 24/96. This seems to reduce the problem but the whole track cannot be rendered out at 24/96 it would seem.

Any audio gurus have any thoughts.


BTW the source is off SVHS. I have a horrible suspicion this noise got into the track when I captures via the A/D converter in my D8 camera. I live half a mile from a big TV transmitter and it sounds awefully like frame buzz. I haven't noticed this before because I've never had to wind the gain up more than a few dB.

Comments

MarkWWWW wrote on 9/2/2003, 8:11 AM
WAV files are limited to 2GB regardless of the file system. (It's because the size fields are 32-bit signed values.)

If you render as W64 you won't have this problem as long as your file system can cope - 4GB maximum for FAT32, no limit on NTFS. (W64 is SoFo's own variant of the WAV/RIFF format which gets round the limits imposed by the 32-bit size fields by making them 64-bits instead.)

Mark
farss wrote on 9/2/2003, 10:23 AM
Mark,
thanks, that answered two question at once, always wondred why VV rendered a W64 file before PTT and now I know what it is. I run only NTFS so I was a bit surprised when it ent belly up and 2 GB.

Now if only I can rid of the damn buzz in my audio!
drbam wrote on 9/2/2003, 11:00 AM
>>Now if only I can rid of the damn buzz in my audio! <<

Try a noise reduction application such as Noise Reduction 2.0 or experiment with eq to see if you can minimize it.

drbam
farss wrote on 9/2/2003, 7:21 PM
drdam,
tried eq but its spectrum seems to cover everything I need, namely voice.
I had to crank in over 20 dB gain and I suspect this is not a wise thing to do with 16/48 audio. I suspect its gotten into the track during digitizing. What I'm going to try is running the analogue outputs of the VCR through an amp with 20 dB gain then digitise that. I know sections will be grossly overloaded but there I'll use the original recording and just drop the voice sections over that.

What happened was we recorded from a desk BUT the feed didn't included the lecturn mics so all we got was what the band mics picked up from speakers. This despite being assured that the feed had everything in it. Unfortunately I wasn't there to monitor the sound, I had to play cameraman.

It wasn't my show either, sort of being dumped on me. Next time before I get involved in this kind of thing I'm going to insist on having control and record my own audio through a separate mix.
mbo wrote on 9/7/2003, 12:51 AM
Hi,
might be helpfull for anyone,

"Next time before I get involved in this kind of thing I'm going to insist on having control and record my own audio through a separate mix."

I had similar situation while recording song competitipn in local ethnic club.
Next time I did it I used Motu audio unit (8in/out, 44/88/96 kHz, 16/24 bit) connected via firewire to my PC. It uses ASIO so you can record using any software supporting ASIO (like VV ie :). The main benefit in such a cases is that you get signal before it gets to mixing console so whatever is done there does not affect you. As you end up with multitrack record, you are free to mix it and whatever you need to do with. If you need more i/o, multiple Motu units can be used. Next time I will set up additional micks facing the public as I had lots of work to recreate the public reaction...
Take care,
Michal