Dragon NaturallySpeaking tutorial: avoid using devices that produce whirring noises for more accurate recognition

In this Dragon NaturallySpeaking tutorial, I share my experience on improving the accuracy of voice recognition.

Even though I use noise cancelling external soundcard Andrea USB-SA-1 for more accurate voice recognition quality, I realised that it completely fails whenever there is a device that produces a whirring sound, for example, and overhead fan at high speed.

The soundcard is able to cancel out the noise due to a TV or of people talking in the same room but somehow, the whirring noises completely disrupt the recognition. So if you suddenly start getting poor recognition quality or get repeated warnings from Dragon NaturallySpeaking saying that it is getting low quality audio, you may want to check around for devices that may not be producing loud sound but still may interfere much more with their whirring noise.

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