Method of controlling devices via speech signals, more particularly, in motorcars
First Claim
1. A method of controlling function units of a motorcar, or of devices (1a, 1b) installed in a motorcar, by means of speech signals, the method comprising the steps of:
- receiving acoustic signals occurring in the motorcar, which contain noise signal portions and speech signal portions,applying the received acoustic signals to a speech recognition system (3), the speech recognition system using acoustic references (8) which are selected in dependence on the operating state and/or operation environment to determine an estimate of noise signal portions, andadapting the estimate of noise signal portions during at least one period containing a noise signal portion but no speech signal portion.
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Accused Products
Abstract
The invention relates to a method of controlling function units of a motorcar or of devices (1a, 1b) installed in a motorcar, via speech signals, in which acoustic signals occurring in the motorcar, which contain noise signal portions that depend on the operating state and/or operation environment of the motorcar, and speech signal portions, as the case may be, are applied to a speech recognition system (3) and the speech recognition system (3) uses acoustic references (8) which are selected and/or adapted in dependence on detected data of the operating state and/or operation environment. The invention is not restricted to speech control in the domain of motorcars.
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Citations
8 Claims
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1. A method of controlling function units of a motorcar, or of devices (1a, 1b) installed in a motorcar, by means of speech signals, the method comprising the steps of:
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receiving acoustic signals occurring in the motorcar, which contain noise signal portions and speech signal portions, applying the received acoustic signals to a speech recognition system (3), the speech recognition system using acoustic references (8) which are selected in dependence on the operating state and/or operation environment to determine an estimate of noise signal portions, and adapting the estimate of noise signal portions during at least one period containing a noise signal portion but no speech signal portion. - View Dependent Claims (2, 3, 4, 5)
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6. An arrangement for controlling function units of a motorcar, or of devices (1a, 1b) installed in a motorcar by means of speech signals, the arrangement comprising:
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at least one microphone (2) for converting acoustic signals occurring in the motorcar, which acoustic signals contain noise signal portions and speech signal portions, and a speech recognition system (3) coupled to the microphone (2) for receiving the acoustic signals and at least one of a plurality of acoustic references (8) in dependence on the operating state and/or operation environment to determine an estimate of noise signal portions, and adapting said estimate of noise signal portions during at least one period containing a noise signal portion but no speech signal portion.
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7. A method of controlling a device via speech signals, in which
acoustic signals, which contain noise signal portions and, speech signal portions, are applied to a speech recognition system and the speech recognition system uses acoustic references which are selected in dependence on the operating state and/or operation environment of the device to determine an estimate of the noise signal portions, and adapting said the estimate of the noise signal portions during at least one period containing a noise signal portion but no speech signal portion.
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8. An arrangement comprising a device controllable via speech signals, wherein
acoustic signals which contain at least noise signals portions are applied to a speech recognition system and the speech recognition system uses acoustic references which are selected in dependence on the operating state and/or operation environment of the device to determine an estimate of the noise signal portions, and adapting said estimated noise signal portions during at least one period containing a noise signal portion but no speech signal portion.
Specification