I read this in the NY Times about a high pitch ring tone that many adults could not hear.
I was able to hear it, but can you?
http://graphics.nytimes.com/packages/audio/nyregion/20060610_RINGTONE.mp3
I was able to hear it, but can you?
http://graphics.nytimes.com/packages/audio/nyregion/20060610_RINGTONE.mp3