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#1
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Powered USB hub issue
I'm chasing an issue with a high pitched noise I get when PT starts up with my mbox2. I've read the issue might be solved by using a powered usb hub instead uf the usb connections on my imac.
I bought a 4-port Kensington hub and connected the mbox2 to it and from there to the imac. Now Protools appears to open but will not play, neither will itunes. When I hook it back the way I had it, still get the noise, but all works fine. When I go back and reconnect the Kensington, I get the following error message- "PT cannot communicate with the mbox2. Please make sure the mbox2 is connected and not set to AC-3 mode. I checked prefferences and AC-3 is not checked and it says the mbox2 is connected. I've searched the issue but not finding anything." and... "PT could not set sample rate to specified value" Any ideas?
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Mac OS High Sierra Version 10.13.6 3.5 GHz Inte Core i5 8 GB Protools First/Scarlett 2i4 |
#2
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Re: Powered USB hub issue
From Digi:
"Mbox is designed to work on a single, dedicated USB port build into your computer. We do not support its use on any hubs, adapters, expansion cards, or the USB port on the side of your USB keyboard."
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Park The Transfer Lab at Video Park Analog tape to Pro Tools transfers, 1/4"-2" http://www.videopark.com MacPro 6 core 3.33 GHz, OS 10.12.1, 8 GB RAM, PT12.6.1, Focusrite Saffire Pro 40, PreSonus DigiMax, MC Control V3.5, dual displays, Neumann U-47, Tab V76 mic pre, RCA 44BX and 77DX, MacBook Pro 9,1, 2.3 Mhz, i7, CBS Labs Audimax and Volumax. Ampex 440B half-track and four-track, 351 tube full-track mono, MM-1100 16-track. |
#3
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Re: Powered USB hub issue
Really? Very interesting. I guess that leads to my next question, which is anyone else experience a this, low volume, high pitch noise when protools boots up? And if so what can be done about it?
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Mac OS High Sierra Version 10.13.6 3.5 GHz Inte Core i5 8 GB Protools First/Scarlett 2i4 |
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