I had just switched from scanning both IND and ZID to just ZID when I heard this aircraft declare an emergency. I did my best to keep up with the frequencies, but it can be hard with the delay. The beeps you'll hear are from my switching freqs. At some points the audio is a bit scratchy, and when the aircraft is on the ground at IND it's almost impossible to make out what the pilot is saying. So I apoligize for all that.