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Head-Fier
- Joined
- Apr 27, 2016
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I wonder would there be any SQ benefit if I'm running it on 1.0x gain against just plugging it in the headphone jack?
I wonder would there be any SQ benefit if I'm running it on 1.0x gain against just plugging it in the headphone jack?
Have you tried to connect it to another PC?
As an update, my ODAC is "behaving" recently. Disconnecting / Plugging it back in seems to have helped. Any slight disturbance may bring back the noise so I have simply left it alone for a day and cranked up the jams.
Still, I am curious to hear from others that may have had issues in the past. Could it be weak / cheap connector ports? Some issue with the USB interface? The ODAC ain't cheap but I don't know of a better DAC if this one gives up the ghost.
I've used the O2/ODAC combo for almost 2 years.
My best guess is that the noise heard even when a song is playing is 50 Hz noise coupling through.
I realized this issue is common especially when the ODAC power adapter is connected to the same socket as the PC.
When I run into the trouble mentioned, either a PC restart or USB unplug / replug fixes the issue. I think unplugging and replugging forces the USB controller to reset and resolves the issue. Besides that, no issue with the ODAC/O2.
Cheers, Shu.
Thanks for sharing.
To be clear, I seem to hear a "tearing" static, or very low-level statickyness. It is similar to the sound of clipping, but as if it were occurring over much more than a millisecond or so. The big giveaway is when nothing is playing of course, and the "tearing" static can be heard as I turn the volume up much higher.
I'll have to assume that it has something to do with the USB ports at this time. Technology . . . .
Yes, I hear that static too. If I try to play a song, I notice the bass is messed up and during quieter passages, the static is there.
As the static reminds me of clipping - either too much power, or too little, the investigation has continued. I have yet a new theory.
The only device that has changed in recent months is my mouse - I retired a Logitech for a MS mouse. I have 2 USB 2.0 ports (keyboard and mouse), and 4 USB 3.0 ports (2 in the front of the machine, 2 in the rear). ALL ports demonstrate the noise with the keyboard/mouse no USB 2.0 ports, and with the ODAC on any of the 3.0 ports.
I deleted the USB drivers and manually rebooted the machine and it automatically re-installed the same USB drivers. No dice.
I tried going into power settings to shut off the selective USB Suspend "feature". That also failed.
So I poked around Device Manager to see what devices were showing up under what USB paths. No matter where I plug in, the ODAC as well as an input device seem to show up under a "USB composite device", along with an "USB input device". So, it appears as if the ODAC shares with the mouse, while the Keyboard gets its own port. Then, I have the two front 3.0 ports, which I think are shared and I typically only use them for HDDs and other memory devices. They appear to be not in use, which is true.
Anyway, I once again moved the ODAC back to its original, seemingly trouble-free port. Then I moved the mouse from the USB 2.0 port to the other rear USB 3.0 port. So far so good, the ODAC is back to "behaving" normally. I am not at all sure if the USB 2.0 ports are "shared" with the USB 3.0 ports or if they have independent paths. But it would seem that switching mice may have caused a problem - perhaps starving the ODAC of power. I don't know as I've had success followed by a return of the bad noises. We'll see!
As the static reminds me of clipping - either too much power, or too little, the investigation has continued. I have yet a new theory.
The only device that has changed in recent months is my mouse - I retired a Logitech for a MS mouse. I have 2 USB 2.0 ports (keyboard and mouse), and 4 USB 3.0 ports (2 in the front of the machine, 2 in the rear). ALL ports demonstrate the noise with the keyboard/mouse no USB 2.0 ports, and with the ODAC on any of the 3.0 ports.
I deleted the USB drivers and manually rebooted the machine and it automatically re-installed the same USB drivers. No dice.
I tried going into power settings to shut off the selective USB Suspend "feature". That also failed.
So I poked around Device Manager to see what devices were showing up under what USB paths. No matter where I plug in, the ODAC as well as an input device seem to show up under a "USB composite device", along with an "USB input device". So, it appears as if the ODAC shares with the mouse, while the Keyboard gets its own port. Then, I have the two front 3.0 ports, which I think are shared and I typically only use them for HDDs and other memory devices. They appear to be not in use, which is true.
Anyway, I once again moved the ODAC back to its original, seemingly trouble-free port. Then I moved the mouse from the USB 2.0 port to the other rear USB 3.0 port. So far so good, the ODAC is back to "behaving" normally. I am not at all sure if the USB 2.0 ports are "shared" with the USB 3.0 ports or if they have independent paths. But it would seem that switching mice may have caused a problem - perhaps starving the ODAC of power. I don't know as I've had success followed by a return of the bad noises. We'll see!
That seems like a valid theory to me. AFAIK the mainboard have different chipsets for USB2.0 and USB3.0