AOA tone generator

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rainier
Site Admin
Posts: 701
Joined: Fri Aug 28, 2020 7:03 pm

Re: AOA tone generator

Post by rainier »

No sorry - the sim can't play these tones - it is currently only capable of playing back WAV audio files you find in the WAV folder (basically the sounds that are then included in the Sounds.ESD file that goes into the EFIS).
cheeselion
Posts: 9
Joined: Thu Nov 05, 2020 3:33 pm

Re: AOA tone generator

Post by cheeselion »

Got it, thanks Rainier! I'll stop trying to debug sim audio then :D
technerdian
Posts: 18
Joined: Tue Nov 10, 2020 8:27 pm

Re: AOA tone generator

Post by technerdian »

I'm attempting to relate the OnSpeed tones to the MGL AoA and I'm wondering if anyone can add to the fund of knowledge:

1. The vertical stripped AoA widget does not seem to work in the MX1 simulator. Changing the AOA differential pressure in the simulation control has zero effect. Am I missing something.

2. The analog AOA (round dial) runs values from 0 to 180. How do these relate to the 0-18.5 steps in the tone file, is it linear?

3. When I run the calibration to set the green-yellow and yellow-red locations on the widget, does that have an effect on the values passed to the tone generator?

Where I'm headed with this is to have the AoA tones work as per the Onspeed project and I would like to have a couple of markers like these on the AoA display:
AoA Example.png
AoA Example.png (6.35 KiB) Viewed 5602 times
Thanks,

Gareth.
1948 Cessna 170 Project (N4180V) now EI-AEN S18513 - Dublin, Ireland
MGL iEFIS MX1 - A16, N16, V16, Blaze AHRS4 x 2, RDAC
https://www.taildragger.eu/
PaulSS
Posts: 67
Joined: Thu Sep 03, 2020 12:02 pm

Re: AOA tone generator

Post by PaulSS »

Regarding the AoA tones on the previous page; I saved the AoA table as instructed and am very pleased to report it works very well :D I recalibrated the AoA zones, just in case, but it all worked as it should and produced nice 'beeps' etc instead of the previous vario-type 'warble'. Much more usable and lead to some < 100m landings during some short field practice.
cheeselion
Posts: 9
Joined: Thu Nov 05, 2020 3:33 pm

Re: AOA tone generator

Post by cheeselion »

Agh, you're teasing me Paul! This is making me want to bring forward an iEFIS installation from "when I get a chance" to "as soon as practicable" :D

Great to hear it worked. I compared the tone logic against the onspeed source code and it did seem sound. So you had a solid tone over the fence?
PaulSS
Posts: 67
Joined: Thu Sep 03, 2020 12:02 pm

Re: AOA tone generator

Post by PaulSS »

A solid tone over the fence, a bit of beeping as I got closer to the runway, some more urgent beeping as just before I crossed the end and then a satisfying 'loads of stalling beeping' just at touchdown :D

Yes, it all works very well in the real thing.
technerdian
Posts: 18
Joined: Tue Nov 10, 2020 8:27 pm

Re: AOA tone generator

Post by technerdian »

PaulSS wrote: Wed Dec 02, 2020 5:41 pm A solid tone over the fence, a bit of beeping as I got closer to the runway, some more urgent beeping as just before I crossed the end and then a satisfying 'loads of stalling beeping' just at touchdown :D

Yes, it all works very well in the real thing.
Hey Paul,

That's fantastic! Thanks for the feedback.

Gareth.
1948 Cessna 170 Project (N4180V) now EI-AEN S18513 - Dublin, Ireland
MGL iEFIS MX1 - A16, N16, V16, Blaze AHRS4 x 2, RDAC
https://www.taildragger.eu/
hpmicrowave
Posts: 39
Joined: Mon Sep 21, 2020 5:35 pm

Re: AOA tone generator

Post by hpmicrowave »

YPaul, can you post a video with sound of your AOA tones in action? (you Tube?)

Thanks
Cecil
technerdian
Posts: 18
Joined: Tue Nov 10, 2020 8:27 pm

Re: AOA tone generator

Post by technerdian »

hpmicrowave wrote: Thu Dec 10, 2020 4:37 am YPaul, can you post a video with sound of your AOA tones in action? (you Tube?)

Thanks
Cecil
And if you can ... I'd love to see and hear how it works through actual stalls at altitude. #greedy :D
1948 Cessna 170 Project (N4180V) now EI-AEN S18513 - Dublin, Ireland
MGL iEFIS MX1 - A16, N16, V16, Blaze AHRS4 x 2, RDAC
https://www.taildragger.eu/
PaulSS
Posts: 67
Joined: Thu Sep 03, 2020 12:02 pm

Re: AOA tone generator

Post by PaulSS »

I will endeavour to do so but I don't know when it will happen given (a)a lack of GoPro or similar and (b)the fantastic British weather :roll:
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