Some folks have wondered what a "dead spot" sounds like. Well here you go. This is about as bad as they come. A customer of mine brought me this 2006 MIM P bass with a nasty deadspot. As usual, it's on the 7th fret of the G string.
In this audio clip you'll hear 2 normal notes on the G string, and then the dead D note: http://www.atkinsonbasses.com/storage/deadspot.mp3
Here's a picture of the waveform:
In this audio clip you'll hear 2 normal notes on the G string, and then the dead D note: http://www.atkinsonbasses.com/storage/deadspot.mp3
Here's a picture of the waveform: