Recording Sound Photographically on Paper Disks
The photodisk record system described uses paper records on which an audio signal is printed as a continuous spiral line of varying blackness. The records are played on a machine similar to an ordinary phonograph record player, with the exception that the pickup arm does not touch the photodisk record. Afeasibility model has been built which records and plays back approximately seven minutes of 50-3000-Hz audio signal on an 8-inch disk of photographic enlarging paper. A possible application is the recording of educational audio material at low cost.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members, $5 for AES members and is free for E-Library subscribers.