Universal audio analyzer

Details Universal audio analyzer Universal audio analyzer

1995-04-07

1997-07-01

Ramirez, Ellis B.

Boots, shoes, and leggings

G06F 1700

Patent

active

056445059

ABSTRACT:
A desktop computer having stereo audio input and output ports is used with an interface board to supply test tones to an audio device being tested. The interface feeds back the test device outputs to the computer audio input ports. The interface, under control of the computer, selects any two of several inputs from the device and attenuates the two signals to the optimum amplitude for analysis. The computer digitizes the audio inputs and simultaneously analyzes the signals by software operations in either time or frequency domain along with appropriate filtering to quickly obtain results according to standard test specifications.

REFERENCES:
patent: 3922506 (1975-11-01), Frye et al.
patent: 4065647 (1977-12-01), Frye et al.
patent: 5381143 (1995-01-01), Shimoyoshi et al.
patent: 5420516 (1995-05-01), Cabot
patent: 5544248 (1996-08-01), Date

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