US 12,470,883 B2
Apparatus, system and/or method for noise time-frequency masking based direction of arrival estimation for loudspeaker audio calibration
Abdullah Kucuk, Novi, MI (US); and Kadagattur Srinidhi, Novi, MI (US)
Assigned to HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, Stamford, CT (US)
Filed by Harman International Industries, Incorporated, Stamford, CT (US)
Filed on May 31, 2023, as Appl. No. 18/204,159.
Prior Publication US 2024/0406646 A1, Dec. 5, 2024
Int. Cl. H04R 29/00 (2006.01); G10L 21/0232 (2013.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); G10L 21/0216 (2013.01)
CPC H04R 29/001 (2013.01) [G10L 21/0232 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); G10L 2021/02166 (2013.01); H04R 2430/21 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An audio system comprising:
a first loudspeaker to transmit an audio signal including audio data and a signature tone into a listening environment;
a second loudspeaker including:
at least one controller being programmed to:
receive the audio signal including the audio data and the signature tone;
determine a direction of arrival (DOA) of the audio signal as received at the second loudspeaker based at least on the signature tone;
perform a time frequency masking operation on the received audio signal prior to determining the DOA of the audio signal; and
perform cross correlation between the audio data and the signature tone to identify a frame that bounds the signature tone.