I've observed some occasional weird behavior from the AirPods when connecting to
conference calls. My calls typically use a bridge that starts with a recording of
a male voice that says "Welcome to the conference calling center." Twice I've heard
this recording pitch-shifted down about an octave... if I disconnect the AirPods
and just use the speaker on the phone, the voice sounds normal.
It's as if the AirPods are using a technology that shifts the pitch of the
signal it receives, possibly to sync the receivers with each other.
It hasn't happened often, but it has happened.
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