| 摘要 |
<p>Embodiments include a device comprising a pipe that includes at least one section that spans between a first end and a second end of the pipe. A receptacle is positioned in the pipe a first distance from the first end and a second distance from the second end. The receptacle receives an electronic device having microphones that are to be calibrated and secures the microphones a third distance inside an inside surface of the pipe. An adapter is connected to the first end, and the adapter connects a loudspeaker to the pipe. The pipe controls an acoustic energy experienced by the microphones so that each microphone receives equivalent acoustic energy.</p> |
