"Richard L. Hess" wrote: > I like Graham's idea, but I worry about the inter-channel, short- and > long-term timebase differences. The idea is that you play each track (outside and inside) on the same turntable in the same session, all with the same hardware, and that compensates for any speed differences that might creep in. You then zoom in to maximum and *carefully* align the two files in the workstation, which should track properly. You should be able to adjust the files to better co-incidence than obtainable with the variations of cartridge mounting and stylus positioning when mounted in the in the twin head playback arm. Remember, there is a LOT of slop in these binaural discs because they were going for W I D E stereo and ping-pong effects to dramatize the stereo soundscape for the listener. ... Graham Newton -- Audio Restoration by Graham Newton, http://www.audio-restoration.com World class professional services applied to tape or phonograph records for consumers and re-releases, featuring CEDAR's new CAMBRIDGE processes.