Apple Logic Pro /LogicExpress Discussion

On Feb 18, 2007, at 8:14 PM, mt100uk wrote:
>
> Hi Gregory,
> For digital sync its always best to start the master first, so the  
> slave won't slip into internal
> mode if it doesn't get clock. So switch on the 828, wait for its  
> lights to stop dancing (and
> for its sync light to stop movig), start the EZBus.

I wish I could tell the EZBus not to panic, and just keep the  
external setting no matter what.  Aren't slaves supposed to do what  
they're told?

Now you've also got me wondering if there's more than user error  
going on.  Both the s/pdif and optical lights on the 828 dance  
constantly, even when everything is working well, and even though I  
have never had anything plugged into the coax inputs.  The clock  
light is stable at 44.1, but the other two never stopped until 5  
minutes ago when I yanked out the optical cables.
> If you start them 'simultaneously' then its going to be really hit- 
> or-miss, as so many
> seemingly arbitary factors are going to become pertinent. For  
> example the charge/
> discharge rate from the PSU's capacitors will vary by temperature,  
> so if its warmer the
> MOTU *might* charge its PSU faster and so sync would be successful,  
> or it could be the
> other way round, or it could be phase of the mains when you power- 
> up, or etc. etc. etc.
I figured that there was a variable timing issue, though I didn't  
have any understanding of reasons why that might be the case.  Now I do.

I think I'm going to give the EZBus a much needed rest for now and  
see if I can eliminate start-up delays by just sticking to the one  
interface.  I am curious about those dancing lights though.  Not the  
ones near Area 51; the ones on my 828.  I bought it used on Ebay for  
$250, which I thought was a good deal, but if it's got stinky sync,  
then maybe it wasn't such a hot deal.

Gregory