Loudspeaker

Details Loudspeaker Loudspeaker

2006-10-03

2006-10-03

Grier, Laura A. (Department: 2615)

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

C381S098000, C381S099000, C381S102000, C381S107000, C381S150000

Reexamination Certificate

active

07116790

ABSTRACT:
Conventional analog loudspeakers have a limited dynamic range as compared to the available dynamic range of digital recordings. Digital recordings use up to 24 bits and this implies a dynamic range of 141 dB. Digital loudspeakers, involving 2Nsingle bit devices (with N=24, this number is 1.7×107) have been proposed. The present improvement is the provision of at least one loudspeaker, a plurality of analog drivers and the audio input supplied to a control processor which in turn drives one or more of the plurality of independent analog drivers. The number of drivers in operation at any one time is determined by the amplitude of the input audio signal to the control processor.

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