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Not sure about it not working. Honestly has been over a year since I last fired it up. I recall testing it before committing it. hmm. It may require the DSP patches, as I see it is a read of SCI_AICTRL3 . a register in the DSP and those are affected by the patches.

about “getVUlevel” and “getVUmeter”. The later basically reads back if it is enabled. where getVUlevel returns the actual VU level on the line. note in the demo code it enables it with


then polls it

vu.word = MP3player.getVUlevel();

notice that it returns a word and the union splits that into a Left and Right for the print.