Subject: sound pathways through human body From: =?iso-8859-1?Q?Herv=E9_Lissek?= <herve.lissek@xxxxxxxx> Date: Fri, 2 Jun 2006 16:18:34 +0200I am facing a problem of sound perception, which I cannot answer with accuracy: when a little sound source in the audible range (~1kHz) is located inside a human body, within the fat cells (for example, a buzzer fixed on a medical device) which of the acoustic pathway from the transducer to the inner ear is occurring ? The sound source is, or should be, implanted inside the abdomen, elastically fixed to the nearest bones (ie the lowest part of the spinal column, maybe even the pelvis). The question is: is sound (@xxxxxxxx 1kHz) transmitted: - through bones - through fluid (fat, air, water ...) directly to the internal ears, - through fluids, interface with air, and then external ears? If possible, could you provide me a reference list? Thanks in advance, best regards, Dr. Hervé Lissek Head of the acoustic group EPFL STI ITOP LEMA ELB 040 Station 11 CH-1015 Lausanne Switzerland Tel: +41 21 693 46 30 Fax: +41 21 693 26 73 herve.lissek@xxxxxxxx