Binaural sound reproducing system with acoustic reverberation unit
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsNobuhisa Atoji, Takahisa Aoi
Life of this patent
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Abstract
A binaural sound reproducing system for transmitting sound radiated from an electro-acoustic transducer through a sound wave transmission path such as a pipe to the left and right ears of a listener includes an acoustic reverberation unit comprising a mechanical-acoustic element. The sound radiated from the electro-acoustic transducer is applied to the acoustic reverberation unit to produce indirect sound with acoustic reverberation. The indirect and direct sounds radiated from the electro-acoustic transducer are mixed and transmited through a sound wave transmission path such as the pipe to the left and right ears of the listener so that the sound image felt by the listener is localized externally of the head of the listener.
Claims15
A binaural sound reproducing system comprising a pair of acoustic transmission paths for transmitting a sound wave radiated from a electro-acoustic transducer directly toward the left and right ears of a listener as direct sounds, an acoustic reverberation unit for adding an acoustic reverberation effect to the sound wave radiated from said electro-acoustic transducer to produce two indirect sounds of different phases, and means for guiding said two indirect sounds into said acoustic transmission paths and combining the guided indirect sounds with said direct sounds respectively to transmit the combined sounds to the left and right ears of the listener respectively.
A binaural sound reproducing system comprising a pair of electro-acoustic transducers for converting left and right stereo-signals to respective sound waves, a pair of acoustic transmission paths for transmitting said respective sound waves radiated from said respective electro-acoustic transducers directly to the ears of a listener as direct sounds, an acoustic reverberation unit for combining the sound waves radiated from said respective electro-acoustic transducers and adding an acoustic reverberation effect to a resultant composite sound for producing two indirect sounds of different phases, and means for guiding said two indirect sounds into said acoustic transmission paths and combining the guided indirect sounds with said direct sounds respectively to transmit the combined sounds to the left and right ears of the listener respectively.
Dependencies are inferred from the claim text.