[Edit: I am not asking if the Fozgometer works, or if it works well, or if you like how it works. I am asking what principle it works on/with.]
I'm trying to get a handle of what this meter does. I know what Azimuth is as well as the difference between crosstalk and separation.
According to the description at Musical Surroundings (I couldn't find Fosgate):
"The FOZGOMETER incorporates a "Log Ratio Detector" developed for surround processor steering logic circuits to measure channel separation over a wide range of signal levels down to -70 dB. The readings are virtually independent of overall signal levels, and can be made with a wide range of input signals without effecting accuracy. . . . It measures channel separation, channel balance, and signal direction quickly and accurately. . . . The meter reads channel separation in both directions, and channel balance. The LED's indicate Left, Center, and Right signal (test tone) positions."
I have downloaded the Fozgometer manual from Musical Surroundings and haven't read it yet. [EDIT: I have now read it. There are instruction for measuring azimuth and what indicates channel balance. They seem to measure the same thing except azimuth measures one channel at a time. There are no instructions for measuring channel separation, only mention that the Fozgometer can measure it.]
Here is my question, as the owner adjusts the tilt (azimuth) of the cartridge in the smallest angle possible what is being read by the Fozgometer? Is it inverting one channel and adding to the other to obtain near zero output?
If not, what is it doing?
And the second question. I had read it came with a test LP, Musical Surroundings seems to sell The Ultimate Analogue Test LP as a tool for the Fozgometer. Was I wrong about it coming complete (with LP)?
Thanks in advance to all serious replies.
Remember, YOU are the only one who needs to be happy with the sound of your system
Grainger Morrison
There Is Only One (Grainger Morrison, it seems)
Edits: 03/06/11 03/06/11 03/06/11
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