Question: My consumer has a Compaq computer with Vista and wants to start using the voice activated software and is asking what is the best microphone to use. Any suggestions?
Answer: The biggest question which you didn’t mention was what are the physical abilities and specific needs of your consumer that you are trying to help? That will determine what is the most appropriate for their needs. For example, for someone with limited dexterity similar to myself who cannot put a headset based close talk Mic on and take it off by themselves, it becomes a tether tying you to the computer and really reduces your freedom to pull up to the computer start working independently and pull away again when you want to.
As a point of background, I all of my business is done using Dragon, from the website development to writing this e-mail, and of course supporting our customers who use it. Prior to my plane crash, I used to teach software quality test automation and quality verification to a lot of high-tech companies. I actually put together a Bluetooth package quite a few years ago for Dragon long before it was ever officially supported what I was doing some freelance testing and quality verification for a Bluetooth headset company as an independent consultant before starting Broadened Horizons. However there are a number of downsides to Bluetooth. It’s an analog technology which means as you move away from the computer often as little as 5 to 10 feet the signal quality drops off significantly. There are quite a few steps to getting it set up and making sure everything in Windows is configured properly, which for some users but at least for many of our end-users was a challenge. Over the years I’ve tested and personally used countless microphones. Many perform pretty well depending on the circumstances and environment.
We (Broadened Horizons) currently offer a few different fairly inexpensive yet unique USB microphones that I’ve found perform as good or better than much more expensive mic models and offer some neat unique features. We have a very popular desktop Mic on a long flex arm that can be positioned just in front of the speaker’s mouth yet given the freedom to pull up the computer and pull away again independently. I only recommend digital USB, not anything analog that plugs into the microphone sound card port available on many computers, which can significantly vary in performance and quality.
http://www.broadenedhorizons.com/usbmicrophone.htm
I replaced the Bluetooth kit of the past with a wireless microphone that uses digital technology which we
call the TalkFar. What that means is you have a perfect signal out to about 100 feet that travels very well even through brick walls and the like, and when the signal drops off you have no signal at all. This is an important point for Dragon. Also you simply plug the base into the computer’s USB port and it sets up everything automatically-no drivers are settings to deal with. Also, having a Bluetooth headset on your ear is not the ideal position for voice recognition. The Bluetooth package I used offer I recommended people hang it around their neck just below their chin on this little recharging holstered snapped in two. With the TalkFar is about the size of an egg and similarly conveniently hangs around your neck somewhat like a pendant. It also has a headset jack so you can listen to music wirelessly, use it with Skype to talk as you move around your home, and is much easier to take on and off than a headset for someone with limited dexterity. We even offer a inexpensive software application that gives you complete voice control over all of your media on your computer while you move around your home or office wirelessly. And most importantly as I mentioned the quality is much better than Bluetooth.
http://www.broadenedhorizons.com/wireless_microphone.htm
We also have aimed less expensive economy USB pencil desktop mic and a new USB headset that comfortably wraps around the back of the headset of over it.
http://www.broadenedhorizons.com/computeraccessibility.htm#microphones_cost_effective_cordless
Finally, I’d like to comment for everyone on all of the microphones described as “noise canceling”. This is kind of a misnomer that has been perpetuated throughout the industry and one that I’m even guilty of simply because everyone’s used to seeing it and use it as a point of comparison. As a pilot I used to use actual, “real” noise canceling headsets before the plane crash (Full Story). “Real” noise canceling headsets have sophisticated electronics that look for a repetitive noise signal or sound wave such as from a very noisy airplane engine and propeller, farm equipment, etc. and then input and opposite negative sound wave to cancel the “noise” one out. Voices and other non-repetitive sounds are not canceled out. Those headsets and/or the electronics associated with them often cost upwards of $600-$800 minimum. Also it is important that noise canceling must have a very repetitive noise to be able to effectively cancel it. There is nothing that will cancel out another speaker’s voice in the room as the microphone would have no way to determine between the primary speaker and another or even a TV for that matter. Microphones come in a few typical varieties. Omnidirectional and unidirectional. Unidirectional tend to “focus” their attention in one direction which may help to ignore extraneous sounds coming from other areas or directions, but often not significantly and they will still pick up other sounds. A close talk headset simply hasbeen very low gain on the microphone so it tends to only hear the person talking whose mouth is very close to it. The idea is it won’t pick up many of the other sounds farther away unless they are fairly loud. So they somewhat help ignore other sounds but don’t really cancel them out by any means.
I hope that helps provide additional insights on microphones to those who are interested in the subject. Of course there are many other people far more knowledgeable than I who actually design the microphones themselves and I’m sure will could probably tell you much more….
Mark Felling
President, Broadened Horizons GimpGear
Quadriplegic Engineer, Inventor, MBA



