| 摘要 |
An acoustic system ( 100 ) includes a resonant cavity ( 106 ) that enhances an audio sound pressure signal produced by a transducer ( 102 ) and provides the enhanced audio sound pressure signal to a diffuser cavity ( 110 ) and an acoustic cover ( 120 ) to diffuse the sound pressure output signal across a greater area to facilitate properly placing the acoustic system ( 100 ) to a user's ear. Incorporation of the acoustic system ( 100 ) into a portable electronic device, such as a cellular telephone, provides an acoustically optimized and physically small audio generator that is easily located along a user's ear.
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