Method for use with a speakerphone system that corrects for mechanical vibrations
AssigneeCrestron Electronics, Inc.
InventorsAlexander Marra, Mark Hrozenchik
Life of this patent
Estimating the term…
Abstract
A method for substantially eliminating the effect of mechanical vibration on an audio input to a speakerphone system is provided herein, the method comprising: receiving an input sound acoustic signal at a microphone (mic); converting the received input sound acoustic signal into an input sound electrical signal, and outputting the same as a mic output signal; receiving mechanical vibrations at a mechanical vibration sensor (MVS); converting the received mechanical vibrations into a mechanical vibration error signal, and outputting the same as an MVS output signal; and generating a speakerphone system output signal by subtracting the MVS output signal from the mic output signal.
Claims15
A method for substantially eliminating the effect of mechanical vibration on an audio input to a speakerphone system, the method comprising:
- receiving an input sound acoustic signal at a microphone (mic);
- converting the received input sound acoustic signal into an input sound electrical signal, and outputting the same as a mic output signal;
- receiving mechanical vibrations at a mechanical vibration sensor (MVS);
- converting the received mechanical vibrations into a mechanical vibration error signal, and outputting the same as an MVS output signal;
- generating a speakerphone system output signal by subtracting the MVS output signal from the mic output signal;
- broadcasting an output sound from at least one loudspeaker into a volume of space exterior to that of the enclosure;
- generating the mechanical vibrations on the enclosure resulting from the broadcast output sound;
- broadcasting a backscatter sound into a volume of space within the enclosure;
- and
- generating the mechanical vibrations resulting from a combination of the output sound broadcast externally to the enclosure and the backscatter sound broadcast into the volume of the enclosure.
Dependencies are inferred from the claim text.