[TizianParticipant]

Sorry, but I delete the pdf in the annex of my last post, you can read now her.

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[TizianParticipant]

My Post – Link: https://community.allen-heath.com/forums/topic/digital-noise-when-streaming-audio-via-usb-b/page/6

Tizian 2018/11/23 at 2:36 am

[TizianParticipant]

Hardware Solution QU – Series
(Driver Crash and Digital Noise during Audio Streaming)

First read my Post from 23.11.2019 about the QU Series issues please.

In December 2018 I found the solution for the problem.
First I want to describe my special Hard- and Software Constellation using live on stage.

Hardware
I’m working with an 1U Rack PC Mini ITX Board GA – H270N – WIFI, 16GB Ram, 1TB SSD Samsung. Amplifier LAB Gruppen IDP 1200 & 2400 series, Mixer QU 16, Seeburg Acoustic Line G-Sub 12″ & 15″ TSM 10 as Tops, Master keyboard M-Audio Ctrl 49, FBT or In Ear Systems for Monitoring, Wireless Microphones, some LED headlights for the Lightshow.

Software
I play and control sounds with my Master Keyboard using Ableton Live as a Host with Spectrasonic Omnisphere & Native Instruments and Freestyler for the Lightshow.
Streaming the sounds with Asio Driver via USB to the QU Mixers Stereo 1 Channel (17&18)

Live on Stage I play in different constellations (One-man-band, Duo or Trio) and working with Multi Audio Tracks. For example Bass, Drums, Instruments and Voices are single tracks.
To play without stress on stage I use the Multiperformer Software (MPS) developed and supported by Miditool in Germany, even with this professional Software I can mute the instruments I want to play live and control the QU (Soft Keys, Fader, Mute…), the Lightshow, Amplifier and so on specifically for each song.

When streaming audios from he MPS to the QU I use the Asio driver adjusting in the MPS Software.
Instruments to QU Channel 7&8, Bass to Channel 9&10, Drums to channel 11&12, Voices to channel 15&16.
On the PC I use an USB3 port to stream the Audios from MPS, the Sounds I play on the Master Keyboard from Ableton and the Midi Data integrated in the MPS control panel to the USB B port at the QU.
It works very fine and exactly, only the issues like driver crash and digital noise were terrible.

SOLUTION
The problem is the EMC (Electromagnetic Compatibility).
Short example: Turning on or of an refrigerator witch is on the same circuit like your equipment transforms voltage pulse. This pulses are able to disturb the USB connection between the computer and the QU. The result is driver crash or digital noise.
To protect the system from that issues use special USB & Power cables from PARTSDATA (Germny) and GLOCKENKLANG (Thomann).

USB 2.0 Kabel mit zwei Ferritkernen Premium+ Industriequalität von PARTSDATA (Germany).
Art.-Nr CU-HQ-10 (1m) CU-HQ-20 (2m) CU-HQ-30 (3m)

Glockenklang High End Power Cable from THOMANN (Germany).
Art.-Nr 139095

Use only this cables and your QU is protected, it works since 6 months without issues on stage and in my studio. Have great fun with my QU16 mixer now.

For more information read the PDF in the annex. I wrote the document in German, but I think it is easy to understand.

Best regards, Tizian

[TizianParticipant]

Hi, Alex

Thank for your interesting news about the issues of the QU series and that your high qualified hard- and software specialist working so hard to solve my problems.

Answer the following Questions:

You solved the problem between my Motu Android Smartphone and the Qu-You App – I send the Pictures to Christian?

You get the list of my Hardware build in my pcs, I send on 03.Oktober to Christian?

High qualified Hard- and Software engineers of your Company tested Audiostreaming on their own Windos PCs without issues?

Please send me a list of your hardware (what kind of Mainboard, RAM, Hard Disk, Windows Version and so on) build in your PCs you tested. I think it’s no Problem for your Specialists?

Is it possible to sent a short Video (you desired from me too and I send a lot) while you are fogging when streamin Audio on your highend windows pc, which doesnt crash?

I am very, very happy that you don’t have issues when fogging, so my Problem is solved.
When I get the List I talk to my PC Spezialist and we build the hardware in to my Computers, very nice.
Thank you in advance. I am in your fault, why we are thinking not earlier to solve the problem this way?

As thank you I send my new video with your Beta Driver 4.47. I testet on PC with a Asrock E350M1 and the QU Firmware 1.95. The board has just USB 2.0 Ports, works fine until the fog machine starts – watch the Video.

But I am happy now – I am waiting for your Hardware List and the video.

Thank you very much & Best Regards, Tizian (Klaus)

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[TizianParticipant]

Dear Qu Users

This a report about the Qu series issues.

I’m a musician from Germany (Bavaria) working since 40 years as a professional keyboarder on stage.

In January 2015 I buy my QU 16.

History:

Until 2017 I use a Multiface II with cables to my QU 16, then I use usb streaming.
In March 2017 I started with streaming multi audio file playbacks from my software via ASIO usb from pc to QU — Sound excellent – using also midi to control QU with my Software.

Working in difference occupation – example what happens:

A Gig: Streaming live on stage – people dancing – partytime – suddenly – music stops – crazy and terrible.

What happens – I realised the problem step by step over two years and I will explain you, because this is the reason for QU issues and a problem of AH because they can’t fix the problem.

QU Mixer, Workstaion (PC), Lights (LEDS) and some other components are normal affiliated on the same circuit working on stage in a Hotel, Restaurant or similary locations.

On stage, when playing gigs open air and so on – there are separate circuits – no problem when streaming, while QU and PC on separate circuit only and no other power consumer connected.

So first I realised that the driver crashed, when all components on the same circuit and someone for example turn on a beamer, plug in and starts a simple fan or turn on a neonlight on stage switched at the same circuit the whole system is connected.

THINKING — WHAT HAPPENS — RESULT

The usb Controller on board the QU mixer can’t stabilize minimal voltage speaks – result: the driver crash – a littel window appears – now asio driver found – music stops …..

I send several Mails within all informations to German support, I test several mainboards with several PC Systems Windows 7 64bit prof, Windows 10 64bit prof build 1803 and so on in in the last 10 months – watch the video…

Send a Mail to A & H – Answer was: sorry but we can’t realised your problem…..

I’m living in a little town 30 km from Thomann, buy there since 40 years. In August 2018 (because A & H do not answer when I sending all results of the issues) I visit three times the PA Stuff in Treppendorf with my QU – PCS – and a foog Machine – switched all components on the same circuit – open the QU driver panel and starts foging – driver crash – (watch the video). I taste several QU Mixers at Thomann, with severel PCS and the result: driver crash or distortion sound when straming playbacks from the PC to the QU.

SUPPORT A & H — Abstract from the last support Mail 07.11.2018:

Leider kann Dir Christian und auch Allen&Heath bei Deinem Problem mit dem Treiber des QU16 nicht weiter helfen.
Der Verdacht liegt nahe, dass es sich um ein Hardware Problem handelt und wir das nicht so schnell gefixt bekommen.

CONCLUSION

The issue with the QU series and usb audio streaming is 100% the result of the usb controller on the QU mainboard and maybe some electronic components built in on the mainboard inside the QU mixer. The usb controller built in mainboard of QU mixer series can’t stabilize minimal voltage speaks and seperate the driver between pc and the QU. It is not a problem of intel chipset or windows OS. A & H company knows it…. They want to sweep it under the carpet!

So it is very expensive for A & H to change all boards of the QU Mixers and logical they are blocked the support.

Please A & H be honestly to the user and tell them that you can’t fix the issue problem with firmware and software updates, further stop the failed information that problem is outside of your company. Explane the user it is 100 % your own error.

And please tell your employees – answer when users ask questions a little bit earlier.

Truth is better than lying…..

Best regards from Tizian (Klaus) (ask Christian Hähnlein – German Support – he is involved and up to date with the issue of the QU series and he knows my person – also Holger one of the best master of the PA stuff by Thomann)

Furthermore thanks to the Thomann PA stuff – they spend a lot of hours, when I represent the issues, because they take my problem seriously.
A & H support mail answer me, text: – sorry, but we can’t realise your problem …
ha ha ha and lol ….
I invite A & H via mail to Thomann – they answer: no interst – i know why – they 100 % familiar with the problem.

All QU users can reproduce the issue:

Switch the QU – the pc – a fog machine – in a power strip stucked in the same circuit — — connect the usb ports pc and qu — open the QU Asio Panel — start fogging two times per second (push the buttom) … watch my video – driver crash or in windows 7 sometimes distortion sound appears or driver crash when playback via usb from the pc.

At least this is the reason why A & H is cautios when user ask – please fix the problem!!! – result: it’s to expensive for A & H to fix it (they must change the motherboard complet in the QU mixer).

When streaming playbacks live on stage the QU is a No Go – it’s better to use the Mixer in a living room for childrens karaoke partys – excuse me … (I love my Baby QU, but it’s sick and A & H give them not the right medicine).

Friends are using a behringer X32 – no problems with windows pc – streaming – fogging – no issues…. test it over three days…

Sorry about my englisch its terrible, but I hope you now can place the issue – make a video – burn it on a CD – send it with the Mixer to A & H and claim damages against the company…..

Greatings from Germany … Tizian

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