Anyone else find that the RTA just doesnt work sometimes on the QU16?
I have to reboot the desk then it starts to work again OK.
Oes it reboot with a PAFL engaged somewhere ?
Giga
It just doesnt work sometimes unless I reboot.
Hmm - not seen that, but it does sound like a PAFL routing issue
Agreed on PAFL. Since there’s no “tell-tale” red light, next time it happens, toggle through the layers to see if there’s a PAFL light somewhere.
You can see all the PFL/AFL from the meter screen - or at least you can on an iPad - I forget if the desk screen shows this too.
I’ll keep my eye on it guys. The weird thing is that without me pressing any buttons it fixes itself after a reboot.
I think you are ignoring the responses. There is a red LED right below the main meters that indicates P or AFL. If that is on, some channel has the PFL or AFL engaged. That is what feeds the RTA. If a silent channel is P/AFL’d there will be no activity on the RTA. Wen you reboot, nothing is P/AFL’d so the RTA shows the main out.
Are you sure a reboot clears PAFL settings?
hey all
I’m not ignoring responses, I’m just not getting my desk out again until Saturday and if/when it happens again I will check it and know how to fix it if the above users are correct. So many thanks everyone for your assistance.
I’ve got a QU32 and it happens to me on occasion as well. I have a soft key set-up to show any PAFL’s and that’s not the problem. It’s a glitch in the start-up procedure. All I have to do is restart the board and problems fixes itself.
OK, great stuff.
So 2 users have noticed this issue, is this enough to get A&H to investigate/fix?
Just to advise that this is STILL happening. I had to reboot my QU-16 at my last two shows to get the RTA to work.
@coffee_king
Sorry that you’re having a problem with this. I’m not aware of reports of this other than the two here and it’s a REALLY odd and specific thing to go wrong.
Please contact us directly using support.allen-heath.com with the following info (which will help in trying to reproduce what you’re seeing):
- What are you routing to the PAFL that you're not seeing on the RTA? (a channel? the main mix?)
<li>Can you see metering on the main meter LEDs and nothing on the RTA?</li>
<li>Do you have an iPad hooked up and if so, can you see the RTA on Qu-Pad?</li>
<li>When you reboot to get it to work as expected, is it just a case of powering off and straight back on or are you waiting a while?</li>
<li>Have you experienced anything else at all that's not doing what you'd expect?</li>
Thanks,
Keith.
I can’t see where to contact you on there so I’m replying on here.
On Saturday night it happened again.
What are you routing to the PAFL that you’re not seeing on the RTA? (a channel? the main mix?)
All microphones channels
Can you see metering on the main meter LEDs and nothing on the RTA?
Correct (I hadn’t actually noticed the LEDs were lighting up prior mind you)
Do you have an iPad hooked up and if so, can you see the RTA on Qu-Pad?
Yes and oddly when I played music through the iPad the RTA started to function for the iPad AND the microphone channels
When you reboot to get it to work as expected, is it just a case of powering off and straight back on or are you waiting a while?
Turn speakers off, power desk off, power desk back on, turn speakers on then its fine again
Have you experienced anything else at all that’s not doing what you’d expect?
No
I have partial videos of it all too if you want to see?
@coffee_king
There is a link to open a new ticket on the support.allen-heath.com page, but you can also email support@allen-heath.com and we’ll get it.
Videos are often very helpful, so yes, please send these through to us (they’ll be too big to attach to a post here).
Hopefully one of them includes the no RTA on screen with the LED meters and PAFL LED showing as this is the strangest thing - being that both are fed from the PAFL bus (so you can see on the metering the same as you’re hearing on the headphone output at any time).
Thanks,
Keith.
@coffee_king
Thanks for sending through the videos 
I see Rafa has already responded but for anybody else who comes across this thread:
The PAFL bus is like a very (VERY) basic mix with no processing that allows you to route individual channels, or multiple channels when in additive mode, to the headphones, LED meters and RTA.
[as an aside, you can also route the PAFL output to the ALT out or remote sockets which can be handy for engineer IEM’s or monitor speakers in the studio]
Therefore, the RTA and main meter LED’s (not the ones per channel) will always show the same as what’s being sent to the headphones.
If you can’t hear anything in the headphones, there will be nothing on the meters.
Even when you don’t have headphones plugged in, it’s useful to think of this as a separate bus to ensure you’re sending signal to it when wanting to see that signal on the RTA/main meters.
By default, when no channel is being PAFL’ed (no PAFL keys are pressed), the LR mix will be fed to the PAFL bus and therefore the headphones/RTA/main meters.
In the video, we can see that a channel has been PAFL’ed which is either not sourced from anything or silent, so although there are meters illuminating on individual channels, nothing was being sent to the PAFL bus.
The reason a restart fixed this was because on boot, nothing is PAFL’ed.
Cheers,
Keith.
So to make sure the RTA will always work on screen do what exactly/have what buttons selected/not selected?
Make sure NO PAFL button is selected?
@coffee_king
If you want the RTA to show your main LR mix:
- Check that 'LR to PAFL' is 'On' in the 'Setup > Audio > PAFL' screen.
<li>Make sure no PAFL key is selected. To be sure, the red PAFL LED (between the main meters above the Talk key) will be illuminated if PAFL has been pressed on <em>any </em>channel.</li>
<li>Ensure the master send level for LR is turned up, though this is only important if 'Output AFL' is 'On' in the 'Setup > Audio > PAFL' screen.</li>
<li>Navigate to the RTA screen.</li>
If you want to see the RTA for a single or multiple channels (inputs or mixes):
- By default, PAFL will only work on one channel at a time, so if you want to view multiple channels at the same time, ensure 'Additive' is 'On' in the 'Setup > Audio > PAFL' screen.
<li>In the same screen, decide if you want to see signal before (pre) or after (post) the channel fader by switching AFL (after fade listen) 'On' or 'Off'. By default, input channels are sent to the PAFL bus pre fader (AFL=Off) and output/mix channels are post fader (AFL=On).</li>
<li>Press one or more (with Additive=On) PAFL keys.</li>
<li>Navigate to the RTA screen.</li>
One other cool thing with any model that has faders (Qu-16, Qu-24, Qu-32) is that you can see the RTA on the channel LED’s when in GEQ Fader Flip mode.
This is really useful for ringing out monitors and shown here - https://www.youtube.com/watch?v=zcOuG_tkGc4
Hope this helps!
Cheers,
Keith.
I joined here just to tell you how incompetent you are. I’ve been using digital mixers for almost as long as they’ve been available. I purchased two of your digital mixers for the school I work at for the sake of sound quality, and your tablet app is a complete disaster! (It’s been about 4 years since I bought the mixers.) I’ve been waiting in vain for a useful update in your app, but I guess it’s a lost cause. Even the cheapest mixers have channel coloring (which is really useful for quick grouping and efficiency during concerts, believe me), and each channel PEQ should have an RTA feature (I can’t explain the benefits of this right now) but it never came. It shouldn’t be this difficult. I’ll be switching to companies that are more advanced in terms of technology and updates as soon as possible. Please don’t come to me saying, ‘These features are available in our next-generation mixers,’ because you can deceive people once.