Victor Frequency Record on Pathe Actuelle

http://forum.talkingmachine.info/view... The Victor Frequency Record was issued in the late 1920s by the Victor Talking Machine Company, and is a primitive sweep tone ranging from 10,000 Hz down to 30 Hz. I wondered how it would sound on various machines, so I set about finding a copy, and was recently successful. I first played it through both a Victor Orthophonic Credenza (6' horn is commonly assumed) and an HMV 194 (2nd biggest horn of the re-entrant HMVs, estimated by some at 7' total length). I used the same excellent-condition HMV 5a reproducer on each, with the same medium-tone tungstone needle, and recorded them under identical conditions with the same device - all of this to minimize variables. These are viewable elsewhere on YouTube. Folks then requested I do the same on other machines, to compare. This is the recording of the paper-coned Pathe Actuelle. This is by no means a scientific or sophisticated thing, just a fun exercise to compare various machines I luckily happen to own. No flat mic or acoustically dead room or any of the rest...just machines recorded under similar conditions to see what happens. It would be fun if someone could use a spectrum analyzer on these recordings to see the relative response curves of one machine to the other (not absolute curves showing actual frequency response of the machines). I'd like to see which is peaky where and how the top and bottom ends compare.