Topic: Qu24 USB B Noise | Allen & Heath Digital Community

Qu24 USB B Noise

This topic contains 62 replies, has 11 voices, and was last updated by volounteer 3 years, 9 months ago.

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2017/04/02 at 1:44 am #62507

I am
Participant

Is this it?

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2017/04/02 at 2:08 am #62509

Andreas
Moderator

Correct view, but I can’t see the Qu…

2017/04/02 at 2:30 am #62510

I am
Participant

Do I need to be connected to the board? Ok I’ll do that tomorrow.

2017/04/02 at 11:06 am #62514

I am
Participant

Here it is.

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2017/04/02 at 11:26 am #62518

Andreas
Moderator

yes, looks ok. Except that the Qu is sharing the same USB controller with WiFi and several other (internal?) devices. Guess this is a very bad idea…
Still guessing this is a notebook, right?

2017/04/02 at 11:37 am #62519

I am
Participant

Yes HP Notebook. Later I will try to turn on airplane mode and see if that is the remedy. On the external USB ports I only have a mouse.

2017/04/02 at 12:01 pm #62521

I am
Participant

Well all settings are as prescribed and noise is still present across all channels. It comes and goes. Turned off bluetooth and wifi to no avail.

2017/04/02 at 1:24 pm #62523

Andreas
Moderator

Basic problem is, that the external ports are exposed through an internal hub and share USB bandwidth with many other devices like WiFi or the Webcam (HP TrueVision HD). Running isochronous multichannel audio through a hub already is critical if its the only device. Sharing the connection with other, potentially full speed or high bandwidth, devices simply kills the audio streams.
Unless one of your USB sockets is connected to a native USB controller, you are probably out of luck with that notebook.

2017/04/02 at 1:34 pm #62524

I am
Participant

Can’t I shut them off?

2017/04/02 at 1:49 pm #62525

Andreas
Moderator

Maybe in BIOS, not sure. And that’s still no guarantee that it does work afterwards. Obviously the system is not designed for high bandwith, zero-tolerance audio streaming on that particular USB socket. Maybe updating the chipset drivers could help, but that does not change the hardware architecture.
Did you try another USB socket (if available) to check if thats connected to a different controller port?

2017/04/02 at 2:12 pm #62526

I am
Participant

I will try all your suggestions when I get home. Thanks.

2017/04/02 at 3:37 pm #62528

Andreas
Moderator

crossing fingers…

2017/04/02 at 4:30 pm #62533

I am
Participant

How does this look?

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2017/04/02 at 5:34 pm #62535

[XAP]Bob
Participant

Do you have an express card slot, or something else that could give you a translated, but non hubbed, USB port?

2017/04/02 at 6:43 pm #62538

I am
Participant

I don’t know. I’ll check when I get home. What are the chances that will work?
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