Author Topic: Audio problems with Bose X Headset  (Read 2452 times)

Hil

Audio problems with Bose X Headset
« on: November 11, 2019, 09:29:46 am »
Hi,

I used my new PAW for the first time yesterday in the aircraft. No problems with the visual display of traffic but did encountered problems with the audio. Specifically volume was attenuated and barely discernible whenever the PAW audio lead was plugged in. Both normal RT as well as PAW voice were adversely affected. 

Any help would be appreciated please?

Equipment:
(1) Bose X noise cancelling headset, plugged into the aircraft panel via
(2) 1/4" 6.35mm Stereo Plug / Male to Dual 1/4" 6.35mm Jack /Female Splitter Adapter Cable Converter 0.6 feet (https://www.amazon.co.uk/gp/product/B01MS0KRA4/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1)

PAW connected into (2) via:
(3) kenable 008904 Audio Cable 1 m 3.5 mm 6.35 mm Black - Audio Cables (3.5 mm, Male, 6.35 mm, Male, 1 m, Black (https://www.amazon.co.uk/gp/product/B06XXQ3CD3/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1)

And also tried PAW connected into (2) via:
(4) Neoteck Headphone Amplifier Portable 3.5mm Audio Rechargeble HiFi Earphone Headphone Amplifier with Lithium Battery and Aluminum Matte Surface(https://www.amazon.co.uk/gp/product/B07G953GHH/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1)

PAW and Neoteck both powered by one of these:
Anker PowerCore 13000 Power Bank - Compact 13000mAh

Setup: tried by turning up volumes on all devices to the maximum. This included:
(1) PAW - Volume  set to 10 (Options>Configuration)
(2) Headset - volume at max
(3) Aircraft Audio panel at max (Garmin 340 & GNC 255)
(4) Neoteck at max (when it was included in the audio routing).

When I replaced the Bose X with a very old set of passive Dave Clarks the audio seemed to be OK.

I'm guessing that this might be an impedance matching problem between PAW and the Bose X's??? Any suggestions for overcoming the problem?

Thanks in advance for your help.

exfirepro

Re: Audio problems with Bose X Headset
« Reply #1 on: November 11, 2019, 10:02:52 am »
Hi Hil,

It could of course be an impedance matching issue, but I think the problem may be your chosen cabling. I don’t think your PilotAware is going to like you using a mono jack plug in the audio out socket as - although the audio output from PilotAware is mono on both left and right channels, the output is via a 4-pole ‘TRRS’ socket and a ‘mono’ plug will short circuit the right and (redundant) video signal to ground.

Have a look at this thread and the other ones linked from it...

http://forum.pilotaware.com/index.php/topic,420.msg6959.html#msg6959

Regards

Peter
« Last Edit: November 11, 2019, 10:23:15 am by exfirepro »

Hil

Re: Audio problems with Bose X Headset
« Reply #2 on: November 11, 2019, 01:50:50 pm »
Thank you for the suggestion, I will try with a stereo cable and let you know how I get on.