| 摘要 |
An integrated noise reduction and communication and/or entertainment system for vehicle use includes one or more signal sources, selected for example from radio tuners (2), microphones (7), cassette decks (6) or the like, providing electrical outputs to be mixed with an electrical output from an adaptive noise reduction unit (14), in a balanced mixer (18), the mixer output being supplied to one or more loudspeakers (22, 22A) located at suitable positions in the vehicle cabin. |
