|Purpose||This page provides information on evaluating a
and microphone to determine the level of performance to be expected
using Dragon NaturallySpeaking.
There are 2 tests that can be easily run to identify potential problems with a particular microphone and computer combination. It is important to remember that one is always checking a microphone and computer as a set. A microphone that works well with one computer, may not work well with another and conversely, if a computer works well with one microphone, it may work poorly with another.
It is also important to remember that any test is simply an
of probable Speech Recognition results. The real test is how
recognition works. It is possible, but not likely, for a
to fail several microphone tests, but still work well with Speech
|Testing with the
|The Windows Recorder is a utility that comes
the Windows Operating System (OS). This is a very convenient utility to
use as it does not require the installation of NaturallySpeaking to
a computers audio recording characteristics.
|NaturallySpeaking contains a microphone utility
Accuracy Center. (On the Dragon Bar click" Tools, Accuracy
Center, Check your audio settings) This utility tests
and adjusts the microphone to
the best settings for the computer, microphone, user, and the
During the test, an audio graph is displayed. Green is the "good" noise produced by talking into the microphone, yellow is the "bad" noise from somewhere else. The signal to noise ratio provided during the test is an important indicator of probable success. A signal to noise ration of 20 to 26 will generally produce great results. A ratio of 18-19 will generally work well. Ratios of 17 and below indicates that microphone quality problems are likely.
If the Microphone test fails, try using the Windows
Recorder test listed above and check the computer for the recommended
requirements. If you are still having problems, review the issues