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“Bone conduction is not a new discovery.
Ludwig Van Beethoven overcame deafness by biting a metal rod attached to his piano to hear his work.” source
can we use bone conduction to pick up chewing sounds and can we process and categorize them into something
articles
"contribution of air-and bone-conduction to the creation of sounds perceived during sensory evaluation of foods"
"the role of auditory cues in modulating the perceived crispness and staleness of potato chips"
"Crispness: a critical review on sensory and material science approaches"
"Analysis of Chewing Soundsfor Dietary Monitoring"
scholar
recording technique
The experiments were conducted in a sound-proofed recording studio. Bone Conduction was recorded with a microphone Shadow 4001 (frequency band: 80-15000 Hz) pressed firmly against the cheek of the subject, near the maxillar angle, on the eating side. Air-conduction was recorded with a microphone AKG C414EB (frequency band: 20-20,000 Hz) held on the other side of the subject’s head. The diaphragm of the microphone was in front of the ear canal opening at 8 cm.“contribution of air-and bone-conduction to the creation of sounds perceived during sensory evaluation of foods”
hardware
currently a homebrew pickup\piezo pickup microphone seems the best bet.
AliExpress sellers of bone conduction headphones/microphnes bluetooth headsets