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Amazon.com: YACSEJAO Contact Microphone Piezo Pickup Violin Microphone Pickup for Guitar, Ukulele, Violin, Mandolin, Banjo, Kalimba, Bass & Acoustic Electric Transducer with Cable : Musical Instruments
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Designing and building an active contact microphone for field recording and sound design — Ezra Gray Audio - Sound Engineer & Sound Artist in Dorset, UK
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