I can get rid of a lot of the distortion through clever tricks, but the portion right at the end is hopeless because there’s no show there to rescue (attached).
That actually sounds decent. How would I go about replicating it?
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Somehow you managed to have your show ping-pong between left and right several times. Since the show sound never really dropped out, I reduced the show to mono and those effects vanished.
Tracks > Stereo Track to Mono.
Then, since most of the trash is rumble and truck-driving-by sounds, I filtered them out with Effect > High Pass Filter: 150Hz, 24dB.
Many field pro sound mixers have a button so you can apply that filter during the recording, so I’m not making that up. The default cutoff is 100Hz, but I have a mixer with 80Hz and 160Hz selectable with a switch. Try different numbers. You’re juggling suppressing the thumping pops versus the low, velvety quality of your voice. As the number goes up, your voice tightens up.