Audio codec with digital level adjustment and flexible channel a

Details Audio codec with digital level adjustment and flexible channel a Audio codec with digital level adjustment and flexible channel a

1995-04-11

1998-06-30

Kuntz, Curtis

Electrical audio signal processing systems and devices

With mixer

381118, 370266, 370267, 379202, 341141, 341143, H04B 100

Patent

active

057745676

ABSTRACT:
An audio codec capable of handling complex control and routing of numerous sound inputs is described. The complex control and routing is obtained by weighting various sound inputs in accordance with weighting values and then digitally mixing the weighted sound inputs together. The invention facilitates construction of the audio codec with mainly fixed gain amplifiers, instead of variable gain preamplifiers, thereby saving a large amount of die space and reducing time needed for testing.

REFERENCES:
patent: 5119422 (1992-06-01), Price
patent: 5196852 (1993-03-01), Galton
patent: 5208594 (1993-05-01), Yamazaki
patent: 5483528 (1996-01-01), Christensen
patent: 5528239 (1996-06-01), Swanson et al.
patent: 5533112 (1996-07-01), Danneels
patent: 5647008 (1997-07-01), Farhangi et al.

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