The present invention provides a laser heterodyne interferometer based system
for audibly producing sounds recorded on a cylinder recording, such as an Edison
type wax cylinder, or a 33, 45 or 78 RPM LP (long play) record. The system generally
comprises an optical system mounted on an optical platform, and an audio recording
medium mounted on a platform operatively positioned relative to the optics platform.
The optical system comprises an interferometer type structure that uses laser generated
light propagated either through free space or through fiber, a platform on which
the optical system is mounted, and a platform on which the recording media (e.g.,
cylinder or record) is mounted.