Abstract: A method for operating a speech recognition system is described in which a speech signal (S1) of a user is detected and analyzed so as to recognize speech information contained in the speech signal (S1). The speech recognition system determines a reception quality value (SQ) or a noise value which represents a current reception quality. The speech recognition system is switched over to a mode of operation which is less sensitive to noise and/or outputs an alert signal (SW) to the user when the reception quality value (SQ) drops below a given reception quality threshold or when the noise value exceeds a noise threshold. An appropriate speech recognition system is also described.

Abstract: A method for operating a speech recognition system is described in which a speech signal (S1) of a user is detected and analyzed so as to recognize speech information contained in the speech signal (S). The speech recognition system determines a reception quality value (SQ) or a noise value which represents a current reception quality. The speech recognition system is switched over to a mode of operation which is less sensitive to noise and/or outputs an alert signal (SW) to the user when the reception quality value (SQ) drops below a given reception quality threshold or when the noise value exceeds a noise threshold. An appropriate speech recognition system is also described.

Abstract: A description is given of a speech recognition system in which a speech signal of a user is analyzed so as to recognize speech information contained in the speech signal. In a test procedure the recognition result with the most probable match is converted into a speech signal again so as to be output to the user for verification and/or correction. During the analysis there is generated a number of alternative recognition results which match the speech signal to be recognized with the next-highest probabilities. The output within the test procedure is performed in such a manner that, in the case of output of an incorrect recognition result, the user can interrupt the output. In that case respective corresponding segments of the alternative recognition results are output automatically for a segment of the relevant recognition result which has been output last before an interruption, so that the user can make a selection therefrom.