#390746 - 01/18/00 11:27 PM
D8B to Lexi 81
|
Armando Diaz
Member
Registered: 01/18/00
Posts: 3
Loc: Sarasota FL USA
|
Offline
|
|
Mr Nichols, I have a Lexicon PCM81 hooked to my D8B
via the PDI-8 AES card which is currently in the Alt I/O slot. Everything is set to 24bits but for some reason, the PCM81 won't accept wordclock unless I set the channels of PDI-8 to "consumer" instead of "pro" in the Digital I/O window of the D8B. I'm using a DB25 to 4m/4f AES XLR fanout cable. What's wrong here? I would greatly appreciate any info on this problem.
Thanks,
Armando Diaz
|
|
Top
|
|
|
|
|
#390747 - 01/20/00 12:33 AM
Re: D8B to Lexi 81
|
Roger Nichols
Platinum Member
Registered: 12/13/99
Posts: 1249
Loc: Miami, Florida
|
|
Offline
|
|
Armando
It may be that there is a page in the PCM81 that can be set for consumer or pro, but for all intents and purposes it doesn't matter. The consumer version is only in the way special bits are used. The bottom 4 bits of the audio are used for such consumer things as copy protection. If the consumer format is indeed implemented correctly, then you will only be getting 20 bits to your reverb unit. Since reverb is never returned at full digital level, you will not be using the full 24 bits anyway, so you will never hear the difference between 20 bit reverb and 24 bit reverb. Even if you digitally measured the dry signal before and after the reverb at the level used for return, they will be the same because the act of lowering the level chops the bottom bits.
If you must set your AES to PRO, it is probably a page in the PCM 81, not the D8B.
Roger
|
|
Top
|
|
|
|
|
#390748 - 01/20/00 10:31 AM
Re: D8B to Lexi 81
|
Armando Diaz
Member
Registered: 01/18/00
Posts: 3
Loc: Sarasota FL USA
|
|
Offline
|
|
Roger
I contacted Mackie Tech Support about this and they claim it's that OS 2.0 doesn't recognize certain processors, such as the PCM81 but there may be a fix in the next OS.
I don't understand how this effects receiving wordbit size? Thanks for the reply!
|
|
Top
|
|
|
|
|
|
|
