Cured - strange clicking when recording

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rob aylestone

rob aylestone

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Seeing the other recent post on interference, I thought I'd share this one. In my video studio there's an old mac with a firewire Presonus Firepod - I quite like this, and being rack mountable - it's useful. The PC runs Cubase, through a red 2 channel simple interface, you know the type, and two in and two out works pretty well - for the occasional multitrack requirement, I use the Mac/Presonus and do an awkward transfer to the PC. This is very annoying so I bought another behringer UMC 1820, which I have in the home studio. Connected it up, plugged in a mic, and there was an intermittent click/pop. Sounded like something discharging, not mega loud, but wrecking recordings - constant, but random times between clicks.

I tried all the obvious things - sampling rate, buffers and drivers made no difference. The solution was the USB cable! Just the bog standard, printer type cable with USB -A one end and the square shaped connector at the other end. Not a thin and flimsy one, but one with transparent outer that you can see the braid through. I swapped it for the similar one connecting my master keyboard to the computer. Problem solved, and the keyboard works fine on the dodgy cable.

It was one of my longer ones, but nothing special - 3m I think. One to tuck away in the little grey cells. Got clicks on an interface, try swapping the cable!
 
I wouldn't have suspected that.
Perhaps the shield is not as connected as it might be.
 
Seeing the other recent post on interference, I thought I'd share this one. In my video studio there's an old mac with a firewire Presonus Firepod - I quite like this, and being rack mountable - it's useful. The PC runs Cubase, through a red 2 channel simple interface, you know the type, and two in and two out works pretty well - for the occasional multitrack requirement, I use the Mac/Presonus and do an awkward transfer to the PC. This is very annoying so I bought another behringer UMC 1820, which I have in the home studio. Connected it up, plugged in a mic, and there was an intermittent click/pop. Sounded like something discharging, not mega loud, but wrecking recordings - constant, but random times between clicks.

I tried all the obvious things - sampling rate, buffers and drivers made no difference. The solution was the USB cable! Just the bog standard, printer type cable with USB -A one end and the square shaped connector at the other end. Not a thin and flimsy one, but one with transparent outer that you can see the braid through. I swapped it for the similar one connecting my master keyboard to the computer. Problem solved, and the keyboard works fine on the dodgy cable.

It was one of my longer ones, but nothing special - 3m I think. One to tuck away in the little grey cells. Got clicks on an interface, try swapping the cable!
I know it's odd right - but when i had problems back in the USB days 10 times out 9 it was the USB Cable - shifty ground or slight disconnect or something cablely.

BTW The Square Connector is a USB B style connector.
 
The USB cable to my Interface has a filter (not sure what it is) on the cable. I thought it probably wasn't important, but that may also be why I have never had any type of USB issue.
 
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