[MV] Re: iListen v1.6 setup

Martin Markoe martin at emicrophones.com
Sat Jun 7 05:45:18 PDT 2003


Donald,
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
The problem is the microphone, iListen doesn't support the Andreas - they do
not deliver enough gain to be used with iListen on Mac OS X.

Supported microphone/headset for iListen include:

-   Griffin iMic/VXi Parrot Translator
-   Telex H 841
-   Telex H 851
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Mike mentioned he is using a Buddy Gooseneck connected to Andrea USB sound
pod. The Buddy Gooseneck has plenty of gain as it uses an Emkay hi gain
microphone element.

The three microphones you mentioned as being supported to have hi gain.
However, their poor noise cancellation characteristics impact accuracy.
Andrea ANC microphones are the most popular microphone in the upgrade market
for speech recognition software. I probably sell four times more Andrea
headsets than all others combined. They do have a lower gain and score lower
on signal to noise ratio tests due to the fact that they have two microphone
elements. One element faces the mouth to sample your voice. The other
element faces away from your mouth and samples incoming noise. This incoming
noise is nulled out by the addition of electronic white noise from a small
circuit in the on/mute box. It is the nature of this active noise canceling
system that reduces the gain but increases accuracy tremendously over almost
all other headsets. The only headset microphones we have found that come
close are new VXI TalkPro models. These do have higher gain and I believe
Patrick Henebry says they work quite well with iListen. Recommending the
three microphones you support is a disservice in my opinion. It is like
buying a high end finely tuned sports car and then using watered-down gas to
drive around.

Realizing the limitations built in to the new iListen software I highly
recommend the use of the VXI TalkPro microphone.

Martin Markoe, eMicrophones, Inc.
The best microphones for Speech Recognition
See us at: http://www.eMicrophones.com/index.asp
See, "Key Steps to High Speech Recognition Accuracy for the Mac" at:
http://www.emicrophones.com/docDetails.asp?DocumentID=39



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