Electrical audio signal processing systems and devices – Noise or distortion suppression – Interpolation
Patent
1982-09-29
1986-12-09
Rubinson, Gene Z.
Electrical audio signal processing systems and devices
Noise or distortion suppression
Interpolation
181145, 367137, 367188, 381 64, 381115, 381117, 381154, H04R 128, H04R 102, H03G 300
Patent
active
046285288
ABSTRACT:
A loudspeaker driver has its front surface adjacent one end of a low loss acoustic waveguide and its rear surface adjacent to one end of a second acoustic waveguide that is one third the length of the first. The other openings of the waveguides face air and couple acoustical energy substantially uniformly over a relatively broad range of frequencies extenting into the bass frequency region. An equalizer includes a notch filter so that the frequency response of the equalizer below a bass cutoff frequency is sufficiently low to prevent audible distortion.
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Bose Amar G.
Short William R.
Bose Corporation
Byrd Danita R.
Hieken Charles
Rubinson Gene Z.
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