fwrunner2017
New member
Hi;
I am getting a lot of clipping on the mic/line input of the Behringer UMC202HD. I have read that this is pretty much normal operation for these inexpensive AI.
The problems is worst for signals coming into the mic/line inputs (via the "Midas designed" preamps).
This unit draws its power from the computer's USB port, so I started thinking that perhaps it is overdriving the USB power source in my PC.
I believe that USB current is limited to 500mA. When I check in Windows 7 Device Manager under USB Controllers, I see that the UMC202HD is requesting 500mA. But that doesn't mean it is actually drawing that much current. Somehow I find it difficult to believe that a modern audio interface would draw that much current.
So I have ordered a little USB dongle to measure the actual current being drawn by the UMC202HD.
In the mean time, I am trying to re-distribute the USB power from my PC to the devices consuming it.
By plugging the UMC202HD into a USB port that is on a (internal) hub that isn't supplying much power to anything else, I may be able to give the UMC202HD a better chance of actually getting the 500mA it is asking for. My intuition tells me that moving the UMC202HD to another (less loaded) USB port will not reduce the clipping, as this is an inherent problem with this type of AI.
In addition, I ordered a USB Y cable so that I can power the UMC202HD from an external 5V power supply. I seem to have accumulated a few of these; one that is good for 700mA, and one that boasts 2A output!
Does anyone else have this issue with the UMC202HD or any other AI, and if so, have you found a solution (besides reducing the input signal)
Thanks
FW
I am getting a lot of clipping on the mic/line input of the Behringer UMC202HD. I have read that this is pretty much normal operation for these inexpensive AI.
The problems is worst for signals coming into the mic/line inputs (via the "Midas designed" preamps).
This unit draws its power from the computer's USB port, so I started thinking that perhaps it is overdriving the USB power source in my PC.
I believe that USB current is limited to 500mA. When I check in Windows 7 Device Manager under USB Controllers, I see that the UMC202HD is requesting 500mA. But that doesn't mean it is actually drawing that much current. Somehow I find it difficult to believe that a modern audio interface would draw that much current.
So I have ordered a little USB dongle to measure the actual current being drawn by the UMC202HD.
In the mean time, I am trying to re-distribute the USB power from my PC to the devices consuming it.
By plugging the UMC202HD into a USB port that is on a (internal) hub that isn't supplying much power to anything else, I may be able to give the UMC202HD a better chance of actually getting the 500mA it is asking for. My intuition tells me that moving the UMC202HD to another (less loaded) USB port will not reduce the clipping, as this is an inherent problem with this type of AI.
In addition, I ordered a USB Y cable so that I can power the UMC202HD from an external 5V power supply. I seem to have accumulated a few of these; one that is good for 700mA, and one that boasts 2A output!
Does anyone else have this issue with the UMC202HD or any other AI, and if so, have you found a solution (besides reducing the input signal)
Thanks
FW