In This Section
Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
AES Journal Forum
Using Computer Vision Technology to Play Gramophone Records
Three-dimensional optical reconstruction using two-dimensional optical flow measured on the rotating groove surfaces of gramophone recordings will enhance our ability to preserve this valuable audio legacy without depending on mechanical contact playback. A modified microscope overcame the limitation of a shallow depth of field by using a thin glass plate to obtain an image at a second focal length. Sound is decoded from the orientation of the groove surface. The algorithm has been tested and validated using both damaged and undamaged records. Informal listening tests confirmed a subjective reduction of pops and other degradations.
No AES members have commented on this paper yet.
Subscribe to this discussion
Start a discussion!
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.