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Re: [EXS] Disturbing test regarding EXS polyphony

2003-10-28 by Murray McDowall

At 07:30 AM 10/28/03 -0500, you wrote: 
>
> Murray,
>
> I have read time and time again that it's really not a good idea or 
> necessary to defragment drives when using OS X. 


If you have large monolithic instrument files eg a 1 GB gig file for a piano
you will find that it is much more likely to play back a lot of voices without
clicks if it is not fragmented. Same goes for a large folder full of AIF or wav
files that comprise one instrument. 

I recently had this experience: Using WinXP / NTFS and CDExtract I created an
SF2 file out of the Maestro Piano. This played back in sfz with a lot of clicks
at first so I analysed the drive and got a report of 40 + fragments for that 1
GB file. I defragged the partition. No clicks. The performance of the drive
heads chasing around that file will be pretty much the same with any OS. It may
not be desirable to defrag your system drive but if you have a samples drive I
found it made a hell of a difference.

>
> As well, you should 
> know that the factory drive that comes with G5s spins at 7200 rpm, so 
> that's not the issue.


A G5 would come from the factory with 1 drive -- No?
Anyone desiring good sample playback performance might expect better results
loading their samples on a second dedicated drive than with the system drive. I
assumed that this is what you were doing. 

Good luck with the 1000 voices ;-)

Regards,
Murray

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