I am using an ODAC which is hooked up to my computer directly through USB. The ODAC is connected to a Matrix M-Stage with RCA which connects to my headphones. I am using Foobar with WASAPI Event as well. I get random popping sounds when listening to music and i don't know what to do. It seems to happen most often when im doing tasks on my computer like scrolling through web pages. I had this same problem with an older Fiio E17 when i connected it to my laptop, it would click and pop mostly on Youtube, but not my media players weirdly. When I connected the E17 and ODAC to another PC there were no clicks or pops during playback. Because of this I believe it's my laptop's USB port to blame and not the devices.
I've tried almost everything to remedy this situation but no luck so far. I tried different USB cables, different USB ports on my laptop (3 of them), different outputs in Foobar such as DirectSound, WASAPI etc, different media players such as MusicBee, J River, WIndows Media Player, different buffer lengths in those programs. I even unplugged all other USB devices apart from the DAC thinking it's a power problem.
I downloaded a program DPC Latendy Checker to see if maybe my laptop couldn't handle audio streaming and this is what I get:
For the most part it's green with the occasional yellow spikes. Sometimes the spikes occur more or less around the same time I hear pops, but not always. Also sometimes i hear pop when there are no yellow spikes,so not sure if they're related.
Is there anything else I can try? I'm pretty sure this is a USB problem with my laptop since it works fine on my other computer's USB port. Do you think it's a power problem? In this case maybe a powered USB hub could fix it. Or maybe it's a jitter problem, but then why would it work fine with my other computer?
Man I'm stumped, really need help here.
EDIT: solved by disabling aero.
EDIT2: issue has arisen again, please read post 20.
EDIT3: solved for good this time hopefully, read post 23 onwards.
Edited by beaver316 - 1/10/13 at 4:37am