Re: Core Audio and DAE together (was LOGIC 8 -DTDM/DAE Problem. I am not even sure someone has succesfull)

Identical audio on Core and TDM tracks have always resulted in
flanging/phasing on OSX. Not sure why, but it seems like Logic can't sync
properly to the DAE (note that tempo oriented TDM plugins don't sync in
Logic either).

It's a tradeoff amongst other quirks, that at least I, have learned to
accept. I use an RME9632 PCI card for Core with 128 sample buffer, ADAT'ed
into 192 IO. Testing shows variable phasing but it's not a problem timing or
groove vise here.

However, the flanging did not happen in OS9 when I used TDM + ASIO (Pulsar
PCI card). Always bang on. So much for technical progress !

Martin

Logic 7.2.3
PT 7.1cs9 /HD Accel2
RME9632
OS 10.4.8


> From: ricky <[email protected]>
> Organization: Logic Users Group
> Reply-To: <[email protected]>
> Date: Sun, 03 Feb 2008 15:25:28 -0600
> To: <[email protected]>
> Subject: [L-TDM] Re: LOGIC 8 -DTDM/DAE Problem. I am not even sure someone has
> succesfull
> 
> Message posted by ricky <ricky-3mT5L/[email protected]>:
> 
> i've just started using core audio + tdm using a motu 424 pcix card attached
> to an old 2408mk1.
> i have 3 adats, 1 is routed to the digidesign96, then i've got an old adat
> bridge for the other 2 adats.. now i have 24in and 24out ca<->tdm
> 
> for all you guys that you are using core audio instead of esb.. do you have
> noticed that if you use even dae audio tracks your core audio gets timing
> issues? i'm talking about expecially sequenced instruments like drum machines
> or some reaktor ensmbles, you will find that logic loose his sample accuracy
> even inside core audio.
> 
> to test it first of all put some audio playing and looping in a dae audio
> track (put volume to 0 for that track if you want), then try doing an exs
> pattern in core audio and bounce it to a core audio track. then try cutting
> the audio you have just done in smaller pieces but without moving them, leave
> them where they are, just cut somewhere, it should play the same right? it
> doesn't
> 
> try now listen the bounced track and the exs togheter (while the dae audio
> track is playing aswell obviously), it will flange, and flange will change
> every time it finds the cut in the audio you have just done with the scissors,
> do not use cycle while testing.. let the song go over and do not take care
> about the first 2 measures, it will start changing from from measure 3, loop
> midi and audio and listen over the time what it does..
> 
> ok now try doing the same test but first remove any dae audio track from the
> arrange and from the mixer aswell. core audio will be perfectly synched
> again!!
> 
> please confirm this, i'm quite sure it acts the same everywhere but who really
> knows ? ;)
> 
> 8.0.1
> 10.4.9
> 7.1cs10
> hdaccel2
> g5dual2.5ppc
> 
> 
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