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(11) | EP 1 061 774 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Audio system having a sound field processor |
| (57) An audio system comprises: a sound field processor that performs three-dimensional
sound field process for a headphone to an input signal and outputs a processed signal;
a loudspeaker output device that receives an input signal and outputs amplified signal
to a loudspeaker; a headphone output device that receives either an input signal or
the processed signal, outputs either said input signal or said processed signal as
amplified signal to a headphone and is capable of being connected to said sound field
processor: a headphone connector connected to said headphone output device; a headphone
detector that is operably coupled to said headphone connector and detects whether
a headphone is connected to said headphone connector or not; and a switch controller
that is operably coupled to said headphone detector and said sound filed processor,
and makes said sound field processor perform said three-dimensional sound field process
for a headphone and supply the processed signal to said headphone output device when
said headphone detector detects a headphone.
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