Apple Inc.

Kevin Durfee

Sriram Hariharan

Robert D Watson

Sarang S Ranade

Kang Sun

A method performed by a programmed processor of an in-ear headphone that is to be worn by a user. The method obtains, over a wireless communication link and via a first wireless connection that uses an accessory profile, a first request, from an audio source device, to start a measurement process. In response to obtaining the request, the method 1) establishes, over the link, a second wireless connection that uses an audio distribution profile between the headphone and the source device, 2) obtains, via the second wireless connection, an audio signal for driving a speaker of the headphone to output sound, 3) responsive to the outputted sound, determining a fit parameter, and 4) transmitting the fit parameter to the source device via the first wireless connection.

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San Francisco, CA, United States of America

Kevin Durfee