System and method for calibrating a speech recognition system to an operating environment

A voice controlled medical system with improved speech recognition, comprising:

• a first microphone in an operating environment;
• a second microphone in the operating environment, said second microphone being nearer to a source of sound in the operating environment than said first microphone;
• a medical device;
• a controller in communication with said first microphone and said medical device that operates said medical device by executing commands received by said first microphone;
• and
• a calibration signal generated by comparing a sound received by said first microphone and said second microphone;
• said controller using said calibration signal to interpret audio commands received by said first microphone.

A method of calibrating a speech recognition system in a voice controlled medical system, comprising:

• (a) playing an audio sample in an operating environment;
• (b) recording the audio sample using at least one microphone in an operating environment;
• (c) comparing the audio sample to the recording by the microphone;
• and
• (d) generating a calibration signal based on the comparison performed in step (c).

A method of calibrating a speech recognition system in a voice controlled medical system, comprising:

• (a) recording a sound in an operating environment using a first microphone and a second microphone nearer to a source of the sound than the first microphone;
• (c) comparing the recording by the first microphone and the second microphone;
• and
• (d) generating a calibration signal based on the comparison performed in step (c).