System for voice-supported control of at least one measuring instrument (2 1, 2 2,..., 2 n) coupled to a common bus with a microphone for electro-acoustic conversion of a control command spoken by the user into a corresponding first electrical signal, a signal processing unit for signal processing of the first signal and for extraction of signal information relevant for speech recognition from the signal processed first signal, a speech recognition unit for recognition of the control command from the extracted signal information and a control unit (5 1, 5 2,..., 5 n) integrated in each measuring instrument (2 1, 2 2,..., 2 n) for actuating the particular measuring instrument (2 1, 2 2,..., 2 n) in response to the recognised control command, wherein coupled to the bus there is a bus controller which contains a data base with constantly updated control commands and associated speech recognition information required for speech recognition specifically for the measuring instruments (2 1, 2 2,..., 2 n) coupled to the bus at that particular point in time, wherein i) the measuring instruments (2 1, 2 2,..., 2 n) connected to the bus are interrogated cyclically, ii) control commands and associated reference vectors which are no longer relevant of measuring instruments (2 1, 2 2,..., 2 n) which are no longer coupled to the bus are deleted and iii) new control commands and associated reference vectors for measuring instruments (2 1, 2 2,..., 2 n) which are newly coupled to the bus are loaded. a microphone for electro-acoustic conversion of a control command spoken by the user into a corresponding first electrical signal, a signal processing unit for signal processing of the first signal and for extraction of signal information relevant for speech recognition from the signal processed first signal, a speech recognition unit for recognition of the control command from the extracted signal information and a control unit (5 1, 5 2,..., 5 n) integrated in each measuring instrument (2 1, 2 2,..., 2 n) for actuating the particular measuring instrument (2 1, 2 2,..., 2 n) in response to the recognised control command, wherein coupled to the bus there is a bus controller which contains a data base with constantly updated control commands and associated speech recognition information required for speech recognition specifically for the measuring instruments (2 1, 2 2,..., 2 n) coupled to the bus at that particular point in time, wherein i) the measuring instruments (2 1, 2 2,..., 2 n) connected to the bus are interrogated cyclically, ii) control commands and associated reference vectors which are no longer relevant of measuring instruments (2 1, 2 2,..., 2 n) which are no longer coupled to the bus are deleted and iii) new control commands and associated reference vectors for measuring instruments (2 1, 2 2,..., 2 n) which are newly coupled to the bus are loaded. i) the measuring instruments (2 1, 2 2,..., 2 n) connected to the bus are interrogated cyclically, ii) control commands and associated reference vectors which are no longer relevant of measuring instruments (2 1, 2 2,..., 2 n) which are no longer coupled to the bus are deleted and iii) new control commands and associated reference vectors for measuring instruments (2 1, 2 2,..., 2 n) which are newly coupled to the bus are loaded.