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Old 22nd Mar 2012, 7:51 am   #35
ppppenguin
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Location: North London, UK.
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Default Re: Auroras at Crowthorne Tubes

PAL: 15625Hz; NTSC: 15734Hz (approx) About 0.7%, about a tenth of a semitone. Assuming you can hear those frequencies at all I think even a trained musician wouldn't notice that. You might just hear a beat note if there were PAL and NTSC sets operating in close proximity but I've never heard it myself.

If a set has an audible frame timebase the difference between 50Hz and 60Hz is very obvious.
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