IP telephony and BT headset

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Oliver Wolfram - 28 Mar 2004 14:50 GMT

So, is anybody using the above with success? Technically it all works
very well (I have an older plantronics headset (BT 1.1, with the
latest Widcomm software) and a USB adapter), problem is the person
receiving the call has a hard time understanding me. None of this on
my side, the sound for me is crystal clear. Now I did some research
and came up with the fact that the culprit may be the reduced uplink
speed those headsets use. For IP telephony as opposed to GSM this gets
relevant because of the higher quality codecs it uses (which require a
higher bandwith).

So is this correct? And what would be an alternative? Do BT 1.2
compliant headsets (such as one of the new Jabras) solve this problem?
Is waiting for 2.0 an option (which has repeatedly been announced
since mid-2001 and to date there seem to be no devices available)?

Thanks,
Oliver

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William Hudson - 29 Mar 2004 19:28 GMT

Oliver -

No direct experience of the issue you mention except that I have tried using
a new BT headset (Sony/Ericsson HBH-65) with my PC for speech recognition
and the results were dreadful. I posted a note here about it - a month ago
or so - and the only response was that BT sound quality was just not that
good.

I changed to a Plantronics switch which let me move my existing Plantronics
headset between an ordinary phone line and the PC. It was fairly pricey -
about $150 - but it works a treat. Not wireless, though (although the same
approach would work with a wireless DECT headset or similar).

Regards,

William

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Oliver Wolfram - 29 Mar 2004 23:47 GMT

William,

whudson@privacy.net - [Montag, 29. März 2004, 20:28:35]:

WH> No direct experience of the issue you mention except that I have tried using
WH> a new BT headset (Sony/Ericsson HBH-65) with my PC for speech recognition
WH> and the results were dreadful. I posted a note here about it - a month ago
WH> or so - and the only response was that BT sound quality was just not that
WH> good.

I can only say that my problem was a fairly easy one to solve. Of
course this is true for all kinds of problems, if you know how to
do it. This notwithstanding, the problem didn't lie with the upstream as
I had assumed, but with the IP software I was using (SIPPS). With
X-Lite, things are working pretty well (with the exception maybe that
to switch between BT heatsed and regular speakers you always have to
terminate the program and restart it). But it works.

Speech recognition: haven't tried that in a while. Maybe I'll give it
a shot. On the other hand: those kinds of applications tend to be
pretty picky about the hardware.

Thanks for your contribution anyway.

Cheers,
Oliver

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