Thanks for the help. Unfortunately when I deleted that line it not only got rid of the beep but also stopped the song.
Were there any lines in the section after the 'beep' line? If so they need to be renumbered.
I.e., let's say you have:
audioid.0.5=WAIT 5
audioid.0.6=STOP
audioid.0.7=/dos/tts/beep3.wav
audioid.0.8=PLAY
You can't just remove the line; this won't work:
audioid.0.5=WAIT 5
audioid.0.6=STOP
audioid.0.8=PLAY
Renumbering all subsequent lines needs to be done or it will stop executing commands after the 0.6=STOP command. Here's how this example should look:
audioid.0.5=WAIT 5
audioid.0.6=STOP
audioid.0.7=PLAY