Fw1884 / 3x UAD1's (in a magma 4) / SSL Duende

[kudzumusik]

On man, these guys don't like each other ... Duende sounds f*kin' amazing but can't get it 2 stay stable ... I think its the FW 1884 ... doesn't like other FW devices hangin' around .... Any advice guys ...

 

[UAfan]

Have you tried separate FW interfaces, not just different ports on same interface? May not help, though, if it is a PCI-bus issue (AFAIK, fw interfaces put their traffic on the PCI-bus). One FW I/F on PCI, one on PCIe a possibility?

Good luck, would be really interesting to hear how this can work, as I have the FW-1884 myself.

M.

 

[kudzumusik]

Have you tried separate FW interfaces, not just different ports on same interface? May not help, though, if it is a PCI-bus issue (AFAIK, fw interfaces put their traffic on the PCI-bus). One FW I/F on PCI, one on PCIe a possibility?

Good luck, would be really interesting to hear how this can work, as I have the FW-1884 myself.

M.

Thanks for getting back UAfan. I don't quite understand what u mean. "Separate FW interfaces..."? Do u mean setting up an aggregate device (I have FF800 that I use 4 mobile recording) ? . I really don't want to remove my FW1884 from my setup. Sound-wise, the Duende is worth all this hassle, but I don't want to lose the FW1884 in order to get the Duende to work. I'm running the sessions @ 88.2Khz/24bit

Mac G5 (1st gen dual 2Ghz), 6.5 Gb Ram, Logic Pro 7.2.1. FW 1884, 3xUAD-1'sin a magma chassis, SSL Duende.

 

[RichR]

If you're running at 88.2, it may just be unstable because of the bandwidth limitations of the PCI bus. That's why I have been supporting UA's decision to go with PCIe instead of FW.

 

[UAfan]

kudzu,

I'm thinking of FW-interface card(s) in the MAC, which you connect the Duende and FW-1884 to, not audio intefaces which are connected by firewire to the MAC. I'm not familiar with MAC, but I was wondering if it maybe made sense (if possible) to have the FW traffic from the two going to different interfaces on the MAC (one on-board, and one an additional PCI card?), so as not to get both competing in the same FW (MAC) interface. They both hit the internal PCI-bus though (I guess), unless you have separate PCI and PCIe busses in the MAC (as I said, I don't know MAC, so this may not be applicable).

M.

 

[kudzumusik]

I stripped evreything back to try and get it to work ... took me all day yesterday. It seems that with Firewire, its very important to turn on connected devices in a specific order. This is how I got it to work. Also, after some research I found out that Duende has some issues at higher sample rates !!! WFT ... under developed or what !!! Anyway, here's the order I got it to work. The FW1884 is connected to the PCI Firewire card. The Duende is connected to the Mac G5's own firewire bus.

1) Turn on Magma 4 Chassis (with 3 UAD-1's and 4 SATA HDs + PCI SATA adapter)
2) Turn on Mac G5
3) Turn on Duende
4) Turn on FE-8's (4got to mention I've got 2 FE-8s ... 8 fader expansions for FW1884 ... connect via Firewire !!!!)
5) Turn on FW1884

If I follow this excact power up proceedure, it all works.

I wonder why Firewire behaves like this?

 

[fantomas]

Try to perhaps pass into 44,1 Khz!

 

[kudzumusik]

If you're running at 88.2, it may just be unstable because of the bandwidth limitations of the PCI bus. That's why I have been supporting UA's decision to go with PCIe instead of FW.

UAD-1's work fine @ 88.2Khz ... so can't be bandwidth limitations ... can it ?Man Duende is driving me mad ...

 

[RichR]

If you're running at 88.2, it may just be unstable because of the bandwidth limitations of the PCI bus. That's why I have been supporting UA's decision to go with PCIe instead of FW.

UAD-1's work fine @ 88.2Khz ... so can't be bandwidth limitations ... can it ?Man Duende is driving me mad ...

Have you tested your setup at lower sample rates?

 

[kudzumusik]

Haven't tried it at lower sample rates ... the projects I'm working on are all @ 88.2Khz so kinda need Duende to work @ 88.2 or defeats the purpose of having it !!!! But ur probably right tho, I should try a session @ 44.1, see how it goes ....