Mechanical Sound: Technology, Culture, and Public Problems of Noise in theTwentieth Century (Inside Technology): Bijsterveld, Karin: 9780262026390: Amazon.com: Books
Next version of emitter pulsing: Faster, more mechanically sound, easier to construct, accurate. I don't have video but I think this was hitting 5 or 6 shots per second in short bursts. :
Mechanical Sound Orchestra by Matt Heckert (1993) on Vimeo
04 Honda Civic EX 1.7L Vtec totaled mechanically sound need shell options - HondaCivicForum.com
CLASSIC HYMER B544 LHD - MECHANICALLY SOUND WITH MOT -NEEDS SOME LOVE!
Ragged 1979 Shovelhead Bobber Made Mechanically Sound | Hdforums
Mechanical Sound synonyms - 15 Words and Phrases for Mechanical Sound