Topic: First half hour of show is MIA, WTF?

[Scuba Jeremy]

I ran my laptop rig last weekend going 24bit, 48Khz, no problems. It was a shorter show, about 90 minutes, no problems. Tape came out sweet.

This week, I tried going 24/96Khz, and the show was much longer, about 130 minutes. They were just in a groove. However, at the end of the night, I had a 4.5GB file, and the first half hour or so of the show is MIA. It looks like something went wrong, and started to record over the beginning of the file. So, for example, the first five songs on my tape are the last five songs of the concert, then when those are done, it cuts to the 7th song of the concert or so, and plays until it gets cut off, at which point it loops back to the start of the recorded track.

The setup was MC012 onstage mixed with the house board main output > UA5 > Gateway 1.3Mhz 256MB RAM notebook running Cool Edit 2000 at 24/96.

Is this a RAM / HDD limitation?

[MattD]

It might have something to do with how Cool Edit writes files and uses temp space. I'd try CD Wave or Wavelab for recording.

[udovdh]

Hmm.
First examine the file.
Hex workshop?

Is there data past the 2G mark?
Past the 4G mark?

If there is data then you could try software that can handle large 'raw' files (standard WAVs over 4G are not possible) and read in the file, then convert to W64 and/or cut in pieces.

The 2G/4G wrap may make it appear liek you recorded over the first part.

[Scuba Jeremy]

Yeah, the file is 3.99 GB (4,294,748,204 bytes). Shit man, are you telling me there's hope? The band played an absolutely killer Fire On The Mountain in the first half hour, and  I'm really kicking my own ass for screwing the tape up.

What kind of programs can handle very large files like this? Audacity? Wavelab?

So, did the program actually record over the first little bit, or is it "hidden" somehwere? Tell me theres hope! I don't even care if I have to downsample and dither it down to redbook CD standards, I just really need that half hour!

Thanks, I'll take a look around at the file.

[udovdh]

Yeah, the file is 3.99 GB (4,294,748,204 bytes). Shit man, are you telling me there's hope? The band played an absolutely killer Fire On The Mountain in the first half hour, and  I'm really kicking my own ass for screwing the tape up.

What kind of programs can handle very large files like this? Audacity? Wavelab?

So, did the program actually record over the first little bit, or is it "hidden" somehwere? Tell me theres hope! I don't even care if I have to downsample and dither it down to redbook CD standards, I just really need that half hour!

Thanks, I'll take a look around at the file.

So now you have a shorter file?
The 4.5G you posted befroe is about the 4492800000 bytes you'd need for 130 minutes at 24/96.
If the file really is 4G then you are missing a part. (the 0.5G)

[Scuba Jeremy]

damn, yeah, I guess it's gone.

[Craig T]

my .02

1) I don't recommend 24/96 over USB with the UA5.  I managed a few flawless at 24/96, but had far more sets with problems - typically "skips" where the drive/USB can't keep up with the data stream so it drops some samples and keeps going.  Stick with 24/48.

2) Use different recording software - something that will seamlessly create a new file once you get to a certain size (ie. 2GB).  I like Wave Lab, but others have that feature.