US 11,889,276 B2
Calibration of audio playback devices
Patrick McPherson, Somerville, MA (US); Shao-Fu Shih, Boston, MA (US); and Klaus Hartung, Santa Barbara, CA (US)
Assigned to Sonos, Inc., Santa Barbara, CA (US)
Filed by Sonos, Inc., Santa Barbara, CA (US)
Filed on Jan. 3, 2022, as Appl. No. 17/567,311.
Application 17/567,311 is a continuation of application No. 16/994,874, filed on Aug. 17, 2020, granted, now 11,218,827.
Application 16/994,874 is a continuation of application No. 16/416,593, filed on May 20, 2019, granted, now 10,750,304, issued on Aug. 18, 2020.
Application 16/416,593 is a continuation of application No. 16/056,862, filed on Aug. 7, 2018, granted, now 10,299,054, issued on May 21, 2019.
Application 16/056,862 is a continuation of application No. 15/698,283, filed on Sep. 7, 2017, granted, now 10,045,142, issued on Aug. 7, 2018.
Application 15/698,283 is a continuation of application No. 15/096,827, filed on Apr. 12, 2016, granted, now 9,763,018, issued on Sep. 12, 2017.
Prior Publication US 2022/0264241 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04S 7/00 (2006.01); H04R 29/00 (2006.01); H04R 27/00 (2006.01)
CPC H04R 29/007 (2013.01) [H04R 27/00 (2013.01); H04S 7/301 (2013.01); H04R 2227/005 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A playback device comprising:
a network interface;
at least one microphone;
one or more audio transducers;
at least one processor; and
a housing configured to carry the network interface, the at least one microphone, the one or more audio transducers; and the at least one processor; and at least one non-transitory computer-readable medium storing instructions that are executable by the at least one processor such that the playback device is configured to:
while at a first position in a first environment, output audio via the one or more audio transducers;
during output of the audio, record, via the at least one microphone, the audio as outputted via one or more audio transducers;
based on the recorded audio, determine a self-response of the playback device in the first environment;
estimate a room response at a second position in the first environment, wherein the instructions that are executable by the at least one processor such that the playback device is configured to estimate the room response comprise instructions that are executable by the at least one processor such that the playback device is configured to apply a mapping to the determined self-response, wherein the mapping is based on multiple pre-determined room responses of additional playback devices that were determined in multiple second environments;
determine calibration settings that at least partially offset acoustic characteristics of the first environment as represented in the estimated room response; and
apply the determined calibration settings to playback by the playback device.