1. A speech recognition method comprising: initiating, by a computer system, a state of a computer program; selecting, by the computer system, a state recognition set based on the state of the computer program; detecting, by the computer system a gesture of at least one part of a human body; selecting, by the computer system, a first recognition set based on the gesture, the first recognition set being a subset of the state recognition set; receiving, by the computer system, a speech input signal; and recognizing, by the computer system, the speech input signal in the context of the first recognition set, the recognizing resulting in a recognition result.