Shure Acquisition Holdings, Inc.

Motorola Corporation

Dusan S Veselinovic

Michael Ryan Lester

Mathew T Abraham

Avinash K Vaidya

Bijal Joshi

Michelle Michiko Ansai

Justin Joseph Sconza

Daniela Radakovic

Array microphone systems and methods that can automatically focus and/or place beamformed lobes in response to detected sound activity are provided. The automatic focus and/or placement of the beamformed lobes can be inhibited based on a remote far end audio signal. The quality of the coverage of audio sources in an environment may be improved by ensuring that beamformed lobes are optimally picking up the audio sources even if they have moved and changed locations.

Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition and voice activity detection functionality

Embodiments include an audio system comprising a plurality of microphones disposed in an environment, wherein the plurality of microphones is configured to detect one or more audio sources, and generate location data indicating a location of each of the one or more audio sources relative to the plurality of microphones; and at least one processor communicatively coupled to the plurality of microphones, wherein the at least one processor is configured to receive the location data from the plurality of microphones, and define a plurality of audio pick-up regions in the environment based on the location data, the plurality of audio pick-up regions comprising a first audio pick-up region and a second audio pick-up region, wherein the plurality of microphones are configured to deploy a first lobe within the first audio pick-up region and a second lobe within the second audio pick-up region.

System and method for automatic setup of audio coverage area

Audio-visual systems and methods are configured to determine a first talker location based on a first group of sound locations corresponding to audio detected by the microphone in association with one or more talkers; receive a new sound location for new audio detected by the microphone in association with at least one talker; determine a proximity of the new sound location to the first group of sound locations; based on the new sound location being in close proximity to one or more of the sound locations in the first group, determine a second talker location based on the new sound location and the first group of sound locations; determine a second proximity of the second talker location to the first talker location; provide the second talker location to the camera if the second proximity meets or exceeds a threshold; and otherwise, provide the first talker location the camera.

System and method for camera motion stabilization using audio localization

Auto focus, auto focus within regions, and auto placement of beamformed microphone lobes with inhibition functionality

Systems and methods are provided for automatically adjusting a reference gain of an audio mixer having a reference channel for receiving a far end audio signal from a remote location as a reference signal and a plurality of audio input channels for receiving audio signals captured by a plurality of microphone element. An exemplary method includes determining an echo level in an input audio signal received at a given audio input channel, and automatically determining a gain amount for the reference channel based on the echo level. An exemplary system includes a reference gain adjuster configured to automatically determine a gain amount for the reference channel based on an echo level detected in an input audio signal received at a given audio input channel.

System and method for automatic adjustment of reference gain

A system and method for efficiently upsampling and filtering a signal is provided. The system includes a controllerand an upsamplercapable of upsampling a digitized signal. The upsamplerconverts a digitized signal having a first sampled frequency into a digitized signal having a second sampled frequency by inserting, for example, at least one zero between the samples of the digitized signal. A plurality of filtersis coupled to the upsampler. These filters, which may be band-pass filters, would be suitable for front end encoding in audio-based applications. The controlleradjusts at least one output of the plurality of the filters to zero, either by deactivation or forcing the filter to zero, based upon a predetermined characteristic of the digitized signal. One example of a predetermined characteristic is a maximum frequency of interest.

Growing community of inventors

Chicago, IL, United States of America

Dusan S Veselinovic