Fast 24/32Bit to 16Bit Conversion for CD Burn . .

RickZ wrote on 9/15/1999, 7:47 AM
I record live choral concerts 2-track. I've been using
SF4.5 to record at 16/44.1 via Sony SBM-1 A/D Box, and DAL
DigitalOnlyCard, and then burn a CD of the raw concert for
the director to critique the choir for the next concert.
Later, I use SF to edit the files for finished CD's for
performers. Works fine.

I've now purchased DAL CardDeluxe 24/96 card, and Vegas.
No problem recording at 24/88.2, but . . how to quickly get
16/44.1 for the CD for the director ? Vega's 'render'
takes quite a while. Any ideas ?

Thanks all,
Rick Z

Comments

pwppch wrote on 9/16/1999, 3:00 AM
How slow is it? How fast do you want it?

Converting from 24/88.2 is both a dither and a resample. To do it
right, takes time.

Peter


Rick Zentmeyer wrote:
>>I record live choral concerts 2-track. I've been using
>>SF4.5 to record at 16/44.1 via Sony SBM-1 A/D Box, and DAL
>>DigitalOnlyCard, and then burn a CD of the raw concert for
>>the director to critique the choir for the next concert.
>>Later, I use SF to edit the files for finished CD's for
>>performers. Works fine.
>>
>>I've now purchased DAL CardDeluxe 24/96 card, and Vegas.
>>No problem recording at 24/88.2, but . . how to quickly get
>>16/44.1 for the CD for the director ? Vega's 'render'
>>takes quite a while. Any ideas ?
>>
>>Thanks all,
>>Rick Z
RickZ wrote on 9/16/1999, 7:30 PM
Actually, I did a quick test, and retract my statement about slow.

The render goes about as fast as the disks can read and write, from
what I observed.

Thanks for the quick reply . .
Regards,
Rick Z
RickZ wrote on 9/17/1999, 6:38 AM
Hi Peter,

Many apologies. I just ran a more realistic test of recording a 2
channel track at 24/88.2 for 44 minutes, then Ctrl-M to mix to new
track at 16/44.1, and the process took 295 seconds, plenty quick,
probably limited by the thruput on my disks.

The system I've built for this purpose has 2 5400 rpm IDE's, and 1
7200 rpm SCSI drive, Celeron 366 PPGA, W98SE. For the test, I
recorded on one of the IDE drives, and 'rendered' to the SCSI drive.

I'll try a reverse test, and if I get a significantly shorter time,
it may make sense to replace one of the 5400 rpm IDE drives with a
7200 rpm unit.