PT9 and Reason out of sync (sometimes)

[PabloB]

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Old 10-23-2013, 11:15 PM
PabloB PabloB is online now
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Default Pro Tools 9 and Reason 6 get out of sync with buffer change, ideas?
Hi,

I'm having a problem and would really appreciate if someone could assist me. I'm running Pro Tools 9.0.3 and Reason 6. When I play a song (even just a couple tracks in PT and no instruments in Reason, just watching the timeline) everything syncs up nicely as long as the H/W Buffer size is 256, 512, or 1024. But as soon as I change the buffer to 128 or less, the sync gets off. For example, if I have a certain change that comes in at bar 84, as long as the buffer is set at 256 or higher, if I start before that bar, the change happens at bar 84 when looking at the timeline in Reason. However, if I change the buffer to 128 or less and I start a little before bar 84, watching the timeline in Reason, the change comes too early.

I did see where someone else was asking about the cursor speed in Reason. This is another way to look at it. With a higher buffer, the cursor moves quickly (normal) and is synced with PT. With a lower buffer the cursor moves slowly and is out of sync with PT.

I searched on here and the Reason forums page, along with google searches. I have performed the General Troubleshooting that is listed on this site along with the setup guide. And I know about running Reason in 32 bit mode, so that is not part of the issue.

My specs are: Mac Pro 2.8 GHz, OSX 10.6.4, Digi 003 rack+, Pro Tools 9.0.3, 12 GB Ram, OWC Mercury Elite AL Pro external hard drive for record/playback connected by firewire. No other peripherals are attached.

This problem has been going on for a couple years, causing me to hardly use Reason. But I'd love to get this figured out and am hoping that someone can help me.

Thank you!
Paul

[JuanPC]

#1. Update to 9.0.6
http://avid.force.com/pkb/articles/d...d/en355241#PT9

#2. Install latest or different 003 drivers.
http://avid.force.com/pkb/articles/e...nload/en379411
http://avid.force.com/pkb/articles/d...02-003-Drivers

#2.4 try a higher quality FireWire cable.
http://www.thecableco.com/Catalog/Digital--Firewire

#2.5 try a different FireWire chip, pcie card or thunderbolt to FireWire, etc...
#2.6 try different or latest FireWire chip drivers.
#2.7 if you have a pcie FireWire card, try other pcie slot, closer to the CPU or far.
#3. Try installing different or latest Rewire drivers.
ftp://ftp.steinberg.net/Archives/Miscellaneous/Rewire/

#4. Read:
http://dawbench.com/audio-int-lowlatency.htm
http://dawbench.com/audio-int-lowlatency2.htm
http://dawbench.com/audio-int-lowlatency3.htm

#5. Make sure Latency compensation is Green in every channel of the Mixer Window.
Right click any [Insert] or [Send], and add Latency compensation menu to the mixer.

[Timani]

Peace all, does anyone know the earliest version of Reason that can be used with Pro Tools 9HD? Please and thanks