Does your 720 have one ot two holes for its MIC...

Black01GT · Joined: 22 Aug 2007 Posts: 25 Location: NJ

After reading a lot about how many people are having Mic issues, and returning the units for a new one with good results. I am one of the unfortunate ones with a bad mic, but with all the pics of the device Ive noticed something.

The unit seems to have two holes where the mic is, and mine only has one. Im wondering if there are two 'versions' if you will, of the 720 and the one with two holes might possibly have a different mic involved. Just a thought.

Anyway, if you have a GOOD mic, do you have one or two holes?

Tim · Thu Aug 23, 2007 1:00 pm

First let's define a couple of things so that everyone is on the same page. I'm going to reference the manual, and describe what is there

Across front of the device, above the screen is a silver "brow". On the left side of the brow is an oval opening for the microphone. On the right side of the brow there is another oval opening for the light sensor.

Where do you see one versus two holes?

Black01GT · Joined: 22 Aug 2007 Posts: 25 Location: NJ

http://www5.jouwsites.nl/image/big_yournav/1366.jpg

In the pic above, there are two holes where the Mic is. Its probably a longshot, but I just noticed it thinking maybe some TT units shipped with one hole, and others with two, some having a different Mic.

Tim · Thu Aug 23, 2007 5:42 pm

Interesting. That is a Euro centric site, so perhaps there is a difference with that model, but worth looking into. Nice catch! I'll see if I can dig up/confirm any info.

Tim · Thu Aug 23, 2007 6:01 pm

I've noticed that many of the USA pictures have that too.... I'll try to see if there is any significance.

waremaster · Joined: 23 Aug 2007 Posts: 12 Location: USA

Hello Has anyone actually seen a device with the 2 mic holes.

ZoomZoom71 · Joined: 06 Aug 2007 Posts: 42 Location: Jacksonville, FL

My device only has 1 mic hole. But, the picture on the box in which my device was packaged has 2 mic holes.

Tim · Fri Aug 24, 2007 12:02 am

I haven't seen one with two mic holes, and the pre-release/prototype device I saw only had one hole as well.

waremaster · Joined: 23 Aug 2007 Posts: 12 Location: USA

My guess would be it is a graphic rendering error on the pictures and not an actual picture of a real device.

Matthew Stroh · Joined: 06 Aug 2007 Posts: 14 Location: UK

I'd always wondered what this meant (here: http://www.tomtom.com/products/product.php?ID=373&Category=0&Lid=1 following the hands-free link):

"Lets your GO double a hands free car kit via Bluetooth® technology, with dual microphone support and build-in high performance speaker (full duplex)."

I guess there was a plan for some clever, but not feasible, mic technology/

Anyway, to add to the discussion about Europe v USA design: I have a UK unit and it only has one hole either side on "the brow" - per the manual, one is the mic, the other the light sensor.

I am on a replacement 720 because the first one had a faulty internal mic. It seems this second one is ok - I've even a had an okish hands-free call with the roof down. Like others, I would still have preferred the option of an external mic, and didn't realise until I bought it that it wasn't available.

Does anyone know if the "car connect" unit might allow for another mic input?

Tim · Tue Aug 28, 2007 2:15 pm

I got some clarification on this today. Some of the early samples of the 720 had two holes. However one hole was taken away to make the design more symmetrical. There are still two microphones, both now using the same hole. There was no other hardware change, it was a cosmetic change. So it sounds like no devices shipped with two holes, and indeed the later prototypes I saw only had one hole as well.