Jerome
Visitor
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Re:ProTools compatibility? - 2006/02/14 04:36
Hi,
Sorry to feedback so late but I didn't have time to test and my systems were very nasty (I change Panther -> Tiger, G4->G5, Digi001->AudiophileFW, and my PC had some reboot pb too) so too much changes to have an optimized setup.
The main issue I have with worhole is sync. As wh2 just send audio thru LAN by packet there no sync audio send though there is a sync option on the plug (this one is certainly done to sync multi instance of wh2 each others).
To have quite stable and non-randomized result :
- Audio Soundcard buffers MUST be the SAME in both computer to work well.
- wh2 buffer setting must be optimized (didn't find the right combi yet) I use the same buffer size for PT, all wh2 instances (in PT) and Vstack soundcard (echo Gina24)
- I must send MIDI beat clock from PT (Mac) into Vstack (PC) via my MIDI interface. It fixed the sync and/or random latency issue but I still need to push the play transport button in Vstack to be sure everything is in sync. But this solution is not the right thing to do 'cause it just sync when pushing play. After a certain among of time, some click can occurs. But it work during 4 or 5 minutes for multitrack feedback.
- I tried to send an audio sync in parallel through S/PDIF (PT->Vstack too) but I didn't noticed any improvement (need to perform more test). I still have to send MIDI beat clock + push play to get sync.
Other issue is wormhole doesn't send 48kHz audio and only 44,1 kHz:
- If I set different sample rate between both machines, it doesn't work and have audio cut every second.
- Even if I set both soundcards to 48kHz, wh2 (in PC-Vstack) seems to send 44100 audio samples resulting of higher pitch audio than it should be in PT. For me it's a bug because I managed to have the right pitch if I tick the 'Audio Through' option in Vstack and the wrong pitch into PT.
Conclusion, it is not perfect yet but can work at 44,1kHz (but 48kHz stuff has to be fixed).
About PT7, this one is quite instable but it is better now that I reinstalled OSX and REALLY disable both Dashboard and Spotlight. Need more test to do and to compare with 6.8. But you should wait for VstToRTAS v2 before using it with PT7.
Jerome
PS : can someone of plasq team (Adrian ?) contact me to talk about all those issues ? Thanks
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