MPx220 Bluetooth & Speach Recog.

[Guest KraZy]

I have spent hours researching the Bluetooth issues with the MPx220... In brief, here are some things that I found as I got deeper into my research and decided to share. (spoiler: the issues were never solved.)

Microsoft has stated that it is a poor bluetooth stack with WM 2003 that will not allow the voice recognition features that the MPx220 offers. Look for good news in the next version of WM... :D (as alot of us already knew...)

There are some _very_ faint rumors that some off-brand headsets will work. This cannot be true unless specific software is installed with the headset that came from that manufacturer. I doubt that this would ever happed due to conflicts of interest with bluetooth marketing. (Deep sarcasim, btw.. :D

I tried to code it myself under MSVC++ (excuse my lack of proper terminology, as I am not a coder by trade) and I found that there was very limited control of bluetooth features with their (?)foundation class. Basically, there was ON, OFF and some conditional functions. Once I saw the heart of the code, there is just not enough simple functions to link the phones mic funtions to the bluetooth features. I didn't look far enough into MSVC, but it should allow for inline ASM, but I really don't want to get that far into the ARM cpu.... which brings me to my next point...

I even went so far as to track down the bluetooth control chipset that was in the phone, and found that the development packages for this are extremely expensive. However, this would have given us enough control to code at a higher level than ASM. That option was out due to cost.

So, in a nutshell, I have abandoned this until M$ can get more bluetooth chip manufatures to pay for giving them more access to their imbeded functions.. (spoken like a true linux guy, i know. :)

Hope this helps anybody who cared.

-KraZy

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In theory, there is no difference between practice and theory. In practice, there is.