Originally Web posted 1 June 1997.
Content last modified 21 June 1999.
I would like to expand upon the fine suggestions made in Bruce and Jenny Bartlett’s article Set Azimuth without using Tones (Radio World 24 August 1994).
Listening for phasing effects works quite well for stereo tapes as well as mono, assuming the stereo signal contains a significant amount of center information, which it usually does. I use the following procedure:
Although less accurate than the listening method, a Lissajous display can sometimes be useful with a stereo tape:
These methods, especially the listening method, have proven quite effective, especially with the ubiquitous compact audio cassette. The listening method has been used by volunteer staffers at KALX for over 8 years with excellent results (especially since the Production Studio Nakamichi 482 cassette deck was modified for tool-free play head azimuth adjustment).
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