Journal Forum

Synthetic Reverberator - January 1960

Sound Board: High-Resolution Audio - October 2015

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015

Access Journal Forum

AES E-Library

Signal Processing Methods for the Recovery of Audio from Early Acoustic Recordings, Measured Via Non-Contact Optical Sensor

Document Thumbnail

A non-contact method for the recovery of audio signals from early acoustic cylinder recordings is presented. The cylinder surface is scanned via optical displacement sensor, capable of submicron axial resolution. Sound recovery is achieved by estimating the trajectory of a playback stylus over the measured surface. The processing methods required to extract audio from a discrete height map are described. The signal to noise ratio of the extracted signal as a function of position across the groove cross-section is examined, for a Blue Amberol cylinder, (circa 1912).

AES Conference:
Paper Number:
Publication Date:

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 $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society