Access Music User Forum

Dear Access support

I figured out a problem with my Access Virus(TIOS 4.0.2.01 and previous versions) in combination with ProTools 8.0.3 cs2 LE (RTAS) and previous versions.

- Arp patches don't sync after all, it seems like they are out of the tempo range from the host.
It sounds like variable tempo changes self-contained to PT. The same thing for arps with or without "LIVE Mode".

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- 04/28/2010 -

Quoted from Marc (Access Music)

one of the core differences of protools HD and LE is that HD features auto latency compensation whereas LE doesn't. with HD protools takes care of the delay, with LE, the user has to by inserting delay compensation plug-ins. sparing a discussion why this all is and if it is a modern approach, this is what avid presents us with an nothing that can be changed from anybody but avid. but is this really what we're talking about here? the fact that LE does not feature delay compensation is well documented and for sure cannot be the problem you guys facing?
In protools HD, the delays are managed by inserting "invisible" delay plug-ins. those plug-ins only run in the DSP world, therefore they are not available to LE customers. the plug-ins report their latency to the host, the host has to deal with the latency, the plug-in cannot do that. the reason why you don't face the same problem with most other plug-ins is that they don't report latency (or a significant latency) to the host in the first place.

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In other words: VC is not able to sync to the host with RTAS until Avid will change this. (LE and M-Powered only)

Dear Donnydonny

OS: Microsoft Windows XP SP2
HD: 4 x Seagate Barracuda 7200.11 (Raid 10)
SC: RME HDSP9632 slaved to UA 2192 in combination with UAD-2 Solo
PT: Digidesign 003 Rack+ slaved to UA 2192
CPU: Intel QuadCore Q9550 @ 2.83 gHz, OC to ~ 3.4 gHz
MB: Gigabyte EP45-DS3R
RAM: Kingston 2 x 2 GB 800 mHz FSB
GFX: Nvidia GeForce 8500 GT

My system is stable and works fine after all. The partition from Windows is the same like ProTools - I don't think that could be a problem for this configuration.
The sync problem is probably a unfixed bug in RTAS mode, because the RTAS support for Virus TI is a new feature. I don't have any idea how to fix this.

All right, I will give SP3 a chance

I installed SP3, but the problem is not fixed yet:
Arps don't sync with host.

Global MIDI Playback offset set to -2271 samples,
all other but Virus TI tracks to +2271 samples

The tempochange is various. Sometimes the ARP-Patches crackles like audio file does when the clock is invaild.

All right, I'll send a PT-Session with my settings and the audio files as well.