somebodyelse
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- Dec 5, 2018
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First guess with buzz/hum is always grounding. How are the Pi and the external hard drive powered, and are they grounded?
Stock seagate and pi switching power supplies with no real earth connection on the mains side?They are both going into a power strip
Yes - I edited to clarify, but you beat me to it. Since it's got a psu I assume the Seagate is one of the bigger drives that can't be powered just from the USB, and has a 12V power supply. Do you have an alternative storage device that can be powered from the USB cable, and/or a battery USB power pack you could power the Pi with for testing?Yes, if you mean they are two prong?
I will try that this evening. I guess I always assumed it was better to not burden the pi with powering the hard drive so I used the big one with its own cord
Oddly though, even with no hard drive or the USB powered drive, and an ifi ipower powering the pi, I have no buzz unless the pre amp is hooked up now.
If I take the dac, pi, hard drive completely out I still have buzz from the tube pre amp ..
audiophile cables
Now, occasionally you may run into a ground loop with a USB DAC where you often hear the activity in your computer. In these cases, I suggest using a Toslink Optical input
Sigh..
Do USB Audio Cables Make A Difference?
Aftermarket USB cables seem to be all the rage with people paying as much as $15,000 for a short run of it!!! Lots of subjective performance reports are out there but none back with any objective measurements that demonstrates any difference. On the other side of the fence many believe there...www.audiosciencereview.comKIMBER KABLE: Do High-end USB Cables Make A Difference?
This is a review and detailed measurements of the KIMBER KABLE B-BUS USB cable. It is on kind loan from a member. The B-BUS in 1 meter length costs US $60 from the company. Complain all you want about high-end cables. Where they usually distinguish themselves is the fancy look of their...www.audiosciencereview.com
JSmith
Hi guys, just put together a Rpi4 with usb to my DAC (DACMagic)
All works well with Volumio and Tidal.
getting some feedback through my monitors (XLR cables), seems to be due to the cheapo USB cable.
Was wondering if these audiophile cables ones will fix that issue or is it better to and add a HAT with Coax out Would have to mod the case?
Cinnamon · USB-A to USB-B · Digital Cables · Cables
AudioQuest cables and other audio products combine solid conductors, high-purity metals, specialized geometries, and stable dielectrics to enable naturally beautiful sounds and images.www.audioquest.com
Thanks