Thanks to a recording made by jrlepage of a test NSF of mine on a PAL NES, I have found a mistake in the noise frequency table on the wiki. I have corrected the article.
http://wiki.nesdev.com/w/index.php/APU_Noise
PAL noise pitch $1 should be 8, not 7.
Recording and NSF to verify:
* http://rainwarrior.ca/projects/nes/pal_pitch_test.flac
* http://rainwarrior.ca/projects/nes/pal_pitch_test.nsf
This makes sense, since all the other values are multiples of 2.
PAL noise frequency correction
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rainwarrior
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