Apple AppleVision 1710AV - Manual (Page 134)

An external microphone connected to the sound input port (marked by
≈
) on the display
doesn’t record quality sound.
m Some external microphones don’t work well with the AppleVision 1710
AV
Display. Use the display’s built-in microphone, or plug the external
microphone directly into the sound input port on the back of your
computer.
138 Chapter 10