US 12,069,454 B2
Subband spatial processing for outward-facing transaural loudspeaker systems
Zachary Seldess, San Diego, CA (US); and Joseph Mariglio, Encinitas, CA (US)
Assigned to Boomcloud 360, Inc., Encinitas, CA (US)
Filed by Boomcloud 360, Inc., Encinitas, CA (US)
Filed on May 8, 2023, as Appl. No. 18/144,575.
Application 18/144,575 is a continuation of application No. 17/544,532, filed on Dec. 7, 2021.
Application 17/544,532 is a continuation of application No. 16/669,440, filed on Oct. 30, 2019, granted, now 11,218,806, issued on Jan. 4, 2022.
Application 16/669,440 is a continuation of application No. 16/147,308, filed on Sep. 28, 2018, granted, now 10,511,909, issued on Dec. 17, 2019.
Claims priority of provisional application 62/592,302, filed on Nov. 29, 2017.
Prior Publication US 2023/0276174 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04S 1/00 (2006.01); H04R 3/14 (2006.01); H04R 5/02 (2006.01); H04R 5/04 (2006.01)
CPC H04R 3/14 (2013.01) [H04R 5/02 (2013.01); H04R 5/04 (2013.01); H04S 1/007 (2013.01); H04S 2400/13 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A system for audio processing, comprising:
a left speaker and a right speaker addressing outward with respect to each other;
a subband spatial processor configured to execute stored instructions to:
receive an input audio signal comprising a left channel and a right channel;
generate a left enhanced channel and a right enhanced channel by gain adjusting side subband components and mid subband components of the left and right input channels; and
a crosstalk cancellation processor coupled to the subband spatial processor, the left speaker, and the right speaker, the crosstalk cancellation processor configured to:
generate a cross-talk cancelled left output channel and a cross-talk cancelled right output channel based on left enhanced channel and the right enhanced channel; and
provide the left output channel to the left speaker and the right output channel to the right speaker to generate a sound providing a plurality of crosstalk cancelled listening regions that are spaced apart.