Richard C Zwiebel

US Patent:

54066344, Apr 11, 1995

Filed:

Mar 16, 1993

Appl. No.:

8/033697

Inventors:

Charles W. Anderson - Boulder CO
John L. Melanson - Boulder CO
Richard C. Zwiebel - Lyons CO

Assignee:

Peak Audio, Inc. - Boulder CO

International Classification:

H04R 2700

US Classification:

381 82

Abstract:

An intelligent speaker unit is controlled by control data transmitted with the digital audio data. The intelligent speaker has a Digital Signal Processor (DSP) for processing the audio data in accordance with the control data. The control data contains an address to select the speaker unit. The DSP for the speaker unit processes audio data digitally based on parameters in the control data. The processed digital audio data is then converted to an analog signal which is amplified and applied to the speaker. The digital audio data is time division multiplexed on a TDM bus. Each time slot on the TDM bus contains audio data for one digital audio channel. The control data is placed on the TDM bus as one channel (time slot) or is distributed as control bits through all the other channels. The control data also contains channel select data. Accordingly the DSP in a selected speaker unit may in turn select its audio data from a plurality of audio channels based on the control data the DSP receives.