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RME Digiface AVB for a StudioLive Mixer ?
Old 4 weeks ago
  #1
Here for the gear
 

RME Digiface AVB for a StudioLive Mixer ?

I am already using my StudioLive 32 series iii mixer connected to a PC via USB 2 for Live FOH and plugin use. Allows me to use low latency plugins in Live Mixing. Studio One v4 is reporting my RTL before any plugins is at 2.83 in / 2.4 out and the processing tab says 6.3ms with the USB 2. I am using 32 channels I/O.

Today I see there is a Digiface AVB - $999. Would this allow me to use the AVB network connection on the Studiolive and connect the AVB to the PC using the Digiface and a USB 3 connection to the PC? Would I need an AVB switch or could I simply connect the Studiolive AVB to the Digiface, and the Digiface USB3 to the PC? Would Round Trip Latency be improved much over USB 2 in this set up? Would stability be improved?

I am trying to avoid a soundgrid network with the new BR1 AVB bridge. Too costly, too limiting.
Old 4 weeks ago
  #2
Here for the gear
 

Anyone know anything about this? I wrote RME but got no reply. Does the Digiface serve as an interface or bridge between my Avb I/O on the mixer and usb 3? Will I see any noticeable improvement over usb 2 in terms of RT latency?
Old 4 weeks ago
  #3
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Quote:
Originally Posted by MrM1 View Post
I am already using my StudioLive 32 series iii mixer connected to a PC via USB 2 for Live FOH and plugin use. Allows me to use low latency plugins in Live Mixing. Studio One v4 is reporting my RTL before any plugins is at 2.83 in / 2.4 out and the processing tab says 6.3ms with the USB 2. I am using 32 channels I/O.

Today I see there is a Digiface AVB - $999. Would this allow me to use the AVB network connection on the Studiolive and connect the AVB to the PC using the Digiface and a USB 3 connection to the PC? Would I need an AVB switch or could I simply connect the Studiolive AVB to the Digiface, and the Digiface USB3 to the PC? Would Round Trip Latency be improved much over USB 2 in this set up? Would stability be improved?

I am trying to avoid a soundgrid network with the new BR1 AVB bridge. Too costly, too limiting.
I think you'll have a very small chance of finding someone with direct experience regarding your intended implementation. Based on my familiarity with elements related to your question, I'll offer some 'informed speculations'.

- The Digiface AVB has a standard 802.3 100/1000 port, so I am very sure you can directly attach another device (the StudioLive in this case) to it without an intervening AVB-capable LAN switch. Any normal Cat5e/Cat6/Cat6a etc. cable will do.

- Since it's an RME device, its USB latency will be among the best you'll find from any manufacturer. Page-67 of the Digiface manual lists the USB 3.0 chipsets that have full compatibility and poor/no compatibility. Check that first before you go further.

- In general USB 3 does not improve latency compared to USB 2; it's still a matter of the chip/driver implementation from the company that makes the mixer or interface. So, RME's USB 2 interfaces continue to demonstrate excellent low latency, and the USB 3 interfaces will show the same low latency with higher channel count capabilities than USB 2. I have used 32 channels on USB 2 with my Midas M32 in the studio (now using RME MADI). MOTU offers 64 channels on USB 2 in their M64 MADI interface. I think the top of USB 2 would be about 70 channels.

- If you can get some numbers on the RTL of the other USB 3.0 products from RME, I suspect that you can directly use that as a guide for your total RTL, adding around a millisecond to account for the AVB offset value (configurable to 0.3ms, 0.6ms and 1.0ms) and the A/D-D/A of the StudioLive

HTH
Old 3 weeks ago
  #4
Here for the gear
 

Thanks kinda what I thought. Using the AVB from the Studiolive is not going to improve things much compared to the USB 2 connection from the Studiolive because the AVB is still going to end up usb at the pc side.

Thanks.
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