“problemas-audio2” does sound like the person is blowing on the mic, a/k/a popping the mic.
A pop-shield is worth a try:
if nothing else a pop-shield will guard against the artist from getting too close to the mic,
(as it should be about 4" from the mic).
“problemas-audio1” could be a a different cause: it sounds like skipping, where a tiny piece of audio is missing, and a there is discontinuity at the join, producing a thud or click.