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IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 1128

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White

Thanks envee, I am also sure that the specialised Bluetooth hearing route is best, but I will try the cheaper alternatives first.

I will start with DennisV's microphone idea first although I am unsure that a mic will work without a pre-amp, and of course issues with amplifying background noise and feedback.

I notice that motorbike systems have amps with 'squelch' systems built in to overcome these problems.

First I have to buy a microphone. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 44k+ miles)

Post #375521 21st Jul 2019 9:10 am
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney NB
Posts: 2371

Australia 2013 Freelander 2 2.0T SE Auto Fuji White

Have you thought about making the car quieter. It has made a big improvement adding acoustic insulation. My all terrain tyres are not too bad but if the car had road tyres, & acoustic foam in them like Tesla has, then that would be the last thing to complete the job.

https://www.freel2.com/forum/topic33026.html Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 1.2kW air compressor Air tank On-board pressure water cleaning Additional 50L fuel Carpet in doors 2x 1kg ABE Waeco 28L modified fridge Battery 4x 26ah Solar 120w Victron MPPT 100/20 18amp DC-DC 175amp jumper plug Awning 6x 255/60R18 Petrol 10.48L/100 inc 500kg payload

Post #375530 21st Jul 2019 10:03 am
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IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 1128

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White

Bought a cheap £5 (PC) microphone. It did not work, I could hear the inline on/off switch clicking but no audio even with the FL2 Aux-in volume turned right up.

So on with the next idea. At least now I have a great little boom mic to use if necessary.

I have now found this snippet of info on the internet.

The electronic audio world has two common signal levels. Think of it as two radically different "volume" levels. "Mic level" signals come out of microphones. "Line level" signals are used to pass among devices like this. An "Aux in" port expects a line level signal. Plug a microphone into it and it won't be loud enough. It won't be NEARLY loud enough.  FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 44k+ miles)

Post #375553 21st Jul 2019 12:29 pm
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Boxbrownie



Member Since: 17 Mar 2019
Location: Looe
Posts: 1052

United Kingdom 2007 Freelander 2 i6 HSE Auto Stornoway Grey

Lightwater wrote:
Have you thought about making the car quieter. It has made a big improvement adding acoustic insulation. My all terrain tyres are not too bad but if the car had road tyres, & acoustic foam in them like Tesla has, then that would be the last thing to complete the job.

https://www.freel2.com/forum/topic33026.html


Quite a lot of tyres have acoustic foam nowadays, does make a difference to the drive by test and a slight difference to interior noise. Regards

David

Please let me know if anything in my post offends you, as I may wish to offend you again......

Post #375554 21st Jul 2019 12:48 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney NB
Posts: 2371

Australia 2013 Freelander 2 2.0T SE Auto Fuji White

With what I have learnt on 1 car with acoustic insulation I have a gut feel that a tyre with the correct acoustic material, both density & size will make a considerable difference. I would hunt around the internet for comparisons.

New tyres with full depth sipes are quieter than old tyres.

People can spend $10k on an hearing aid & have virtually no improvement.

If you want to start with the easier bits with the car. Line the boot under the spare tyre & do the door panels to build up some confidence. Once you start removing panels you see how simply the car is put together. Door cables & electrical connections simply unclip & easier to clip back in.

It's a bit why I got carried away & kept doing more & more. When removing a door panel put the window down first as it is easier to line up & clip back in the door release cable. There are also 2 screws behind the door handle cover trim which unclips from the bottom being pretty firm forcing it loose.

I think the quietest road tyres, & insulating boot & doors will make a very worthwhile improvement in reducing noise. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 1.2kW air compressor Air tank On-board pressure water cleaning Additional 50L fuel Carpet in doors 2x 1kg ABE Waeco 28L modified fridge Battery 4x 26ah Solar 120w Victron MPPT 100/20 18amp DC-DC 175amp jumper plug Awning 6x 255/60R18 Petrol 10.48L/100 inc 500kg payload

Post #375577 21st Jul 2019 8:06 pm
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Past master



Member Since: 30 Jun 2010
Location: Isle of Ely
Posts: 2688

United Kingdom 

A friend of mine has NHS hearing aids (look to be the standard ones as they look the same as mine). He has a mike that hangs round his neck and bluetooths to the aids as well as to his phone. All free on the NHS. I suspect the standard NHS aids all have a Bluetooth capability, as mine can talk to each other! Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model Evoque order cancelled, bought ex-demo instead.

Post #375587 21st Jul 2019 10:19 pm
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IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 1128

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White

I have chosen the solution below and it seems to be working ok.

I have a blue tooth intercomm mic above my head on the drivers side, and I have modified an old headset for my wife which recieves my speech.
(Although the intercomm set is fully duplex, at the moment I can hear everything my wife says without any aids!)
(The headset is hung on window so that it is visible.

2 USB to Micro USB leads allow charging in situ.

https://www.amazon.com/LEXIN-Interphone-Mo...B077ZNYDGZ

Click image to enlarge


Don't ask me why it has rotated picture - was taken in portrait, displays on my phone and PC in portrait???
Thanks to all who helped clarify my thoughts. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 44k+ miles)

Post #376347 6th Aug 2019 6:03 pm
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Lightwater



Member Since: 21 Aug 2014
Location: Sydney NB
Posts: 2371

Australia 2013 Freelander 2 2.0T SE Auto Fuji White

IanMetro wrote:
I can hear everything my wife says without any aids!

I'm sorry to hear this! Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 1.2kW air compressor Air tank On-board pressure water cleaning Additional 50L fuel Carpet in doors 2x 1kg ABE Waeco 28L modified fridge Battery 4x 26ah Solar 120w Victron MPPT 100/20 18amp DC-DC 175amp jumper plug Awning 6x 255/60R18 Petrol 10.48L/100 inc 500kg payload

Post #376370 7th Aug 2019 1:39 am
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