Processing audio signals using a discrete state machine

Telephonic communications – Substation or terminal circuitry – For loudspeaking terminal

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379388, 379420, 379347, H04M 910

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active

055925472

ABSTRACT:
A level of transmit attenuation and a level of receive attenuation are generated using a discrete state machine of a controller. Local audio signals generated with a local microphone are attenuated with a transmit attenuator at the level of transmit attenuation for transmission to a remote node. Remote audio signals received from the remote node are attenuated with a receive attenuator at the level of receive attenuation for playback at a local speaker.

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