Patent ID: 8731206
Filing Date: 2014-05-20
Classification: H04R

Abstract:
1. A method comprising: outputting a sound from a reference speaker in the presence of a reference microphone and a test mobile device comprising a test mobile device microphone and a test mobile device speaker; acquiring at least a portion of the sound by the reference microphone to produce a reference analog electrical signal; converting the reference analog electrical signal to a reference digital signal corresponding to at least a portion of the sound; acquiring, from the test mobile device, a test mobile device digital signal representing at least a portion of the sound; computing a first sound quality parameter value for a portion of the reference digital signal corresponding to a time interval; computing a second sound quality parameter value for a portion of the test mobile device digital signal corresponding to the time interval; determining a relative sound input quality parameter as a function of the first sound quality parameter value and the second sound parameter value; and displaying the relative sound input quality parameter.