Deletion of Transient (acoustics)

Comment: Added a cite from the handbook of acoustics, and several more reliable sources appear to be available. As near as I can tell, this is better defined as an ''alternate definition'' of the term than a misnomer. Even if incorrect, it appears to be a |notable misnomer. If there is a more appropriate term for a short duration sound, then the place for that discussion would be the article talk page. Incidentally, the military sonar term appears essentially unrelated and probably should be split into another article
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)