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Headphone amp troubles
- Thread starter Crixus
- Start date
Solution
If your adapter connects from a TRRS type jack to 2 x TRS jacks. You may still be sharing a ground connection. It is still worth checking if the noise goes away when using just the mic with the headset connected.
With a TRS you have Ground, Right and Left with TRS you have Mic, Ground, Right and Left(a shared ground)
You can test this with sound recorder on your computer.
Normally these devices are expected to be used with the same sound card for output(headphones) and input(mic). You simply are now setup this way.
With a TRS you have Ground, Right and Left with TRS you have Mic, Ground, Right and Left(a shared ground)
You can test this with sound recorder on your computer.
Normally these devices are expected to be used with the same sound card for output(headphones) and input(mic). You simply are now setup this way.
nukemaster
Titan
- Nov 23, 2004
- 19,626
- 6
- 74,965
It sounds like some kind of ground loop coming from running 2 usb powered devices that are connected to one another.
Do you actually need the DAC? Does the Astro also have a built in DAC(honest question. I am not familiar with that device. Does it have the mixamp device)?
Can you list how the devices are connected? You may be able to isolate on devices power(I would guess the Astro unit).
Do you actually need the DAC? Does the Astro also have a built in DAC(honest question. I am not familiar with that device. Does it have the mixamp device)?
Can you list how the devices are connected? You may be able to isolate on devices power(I would guess the Astro unit).
nukemaster
Titan
- Nov 23, 2004
- 19,626
- 6
- 74,965
So just USB -> Fiio -> Astro A40(I guess with 2 x 3.5mm jacks).
Well that normally does not cause issues.
So this sound is only on the mic or also on the headphones?
Well that normally does not cause issues.
So this sound is only on the mic or also on the headphones?
nukemaster
Titan
- Nov 23, 2004
- 19,626
- 6
- 74,965
You may be able to do some kind of loopback test or even use sound recorder to try to see if you can here it.
For the hell of it, try to record a test with the headset disconnected. I know it sounds strange, I just wonder if the mic and headphones share the same ground line(again ground loops are not always fun.).
For the hell of it, try to record a test with the headset disconnected. I know it sounds strange, I just wonder if the mic and headphones share the same ground line(again ground loops are not always fun.).
nukemaster
Titan
- Nov 23, 2004
- 19,626
- 6
- 74,965
If your adapter connects from a TRRS type jack to 2 x TRS jacks. You may still be sharing a ground connection. It is still worth checking if the noise goes away when using just the mic with the headset connected.
With a TRS you have Ground, Right and Left with TRS you have Mic, Ground, Right and Left(a shared ground)
You can test this with sound recorder on your computer.
Normally these devices are expected to be used with the same sound card for output(headphones) and input(mic). You simply are now setup this way.
With a TRS you have Ground, Right and Left with TRS you have Mic, Ground, Right and Left(a shared ground)
You can test this with sound recorder on your computer.
Normally these devices are expected to be used with the same sound card for output(headphones) and input(mic). You simply are now setup this way.
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