US4680856 — Process for Forming an Acoustic Monitoring Device

US4680856 is a patent reproduced in the source dossier on Holophonics. Inventor: ZUCCARELLI HUGO [IT]. It describes both an acoustic monitoring device and the process for forming it.

Device

The acoustic monitoring device is for sound sensing in the recording, reproduction, broadcasting, or transmission of sounds. It is shaped like a human head equipped with anatomical features that accurately reproduce the shape of the auricles, the auditory meatus, the Eustachian tubes, and the nasal and oral cavities. Membranes responsive to sound pressures are located at the positions of the ear drums or other auditory organs. These membranes are coupled to acoustic members which provide electrical signals on wires exiting the skull model.

Manufacturing process

The abstract describes the process as:

1. forming a first mold on a human head;
2. forming a casting from that mold;
3. forming a second mold on the casting;
4. painting the second mold with a liquid silicone rubber which is allowed to dry to form resilient casting segments simulating the human head.

Anatomical features simulating the brain and internal members defining the Eustachian tubes and the nasal and oral cavities are provided within a skull model. A pair of membranes is placed within the skull model at the location of the eardrums or other auditory organs. The silicone rubber casting segments are transferred to the exterior of the skull model, giving the acoustic monitoring device the appearance and characteristics of the original human head.

Evidentiary status

This is a legal document describing a device and a manufacturing method. It is not evidence that the Auditory Interferometer Hypothesis is correct. See Patent as Evidence.

Related patents

• EP0050100 — Device for the Spatial Codification of Sounds — Device for the spatial codification of sounds, the companion Zuccarelli patent in the same dossier.