| 摘要 |
A speech-directed user interface system includes at least one speaker 16, 50 for delivering an audio signal to a user 10, 60 and at least one microphone 18, 52 for capturing speech utterances of a user 10, 60. An interface device 30 interfaces with the speaker 16, 50 and microphone 18, 52 and provides a plurality of audio signals to the speaker 16, 50 to be heard by the user 10, 60. A control circuit is operably coupled with the interface device 30 and is configured for selecting at least one of the plurality of audio signals as a foreground audio signal for delivery to the user 10, 60 through the speaker 16, 50. The control circuit is operable for recognizing speech utterances of a user 10, 60 and using the recognized speech utterances to control the selection of the foreground audio signal. |
