weird audio artifacts

[6str]

hi,

encoding the song High Wire by Badlands produces some really strong weird phasing, flattening and sort of click sound, on the vocals, most noticeable when he sings the phrase "love love love" around 45, 121 and 242 seconds (amongst other places) More echo/delay is added to that part of the vocal and it's double tracked.
The FAAC compression makes is sound flat and with really weird artefacts. It sounds like the double tracking is totally lost. Delay too.

using EAC with FAAC 1.30, English, on Win10 x64 with the following settings

--overwrite -q 150 -w -o %dest% --artist "%artist%" --title "%title%" --album "%albumtitle%" --year "%year%" --track "%tracknr3%" --disc "%cdnumber%/%totalcds%" --genre "%genre%" --comment "%comment%" %hascover%--cover-art %coverfile%%hascover% %source%

I can't detect it at all listening to it encoded with FLAC, mp3 or using iTunes. Maybe I do hear something weird around 45sec on the iTunes encoded version, but maybe not totally unnatural.

here's a link to faac aac, itunes aac, and flac copies of the file
https://1drv.ms/u/s!AsK3c06abHHFg8wJjQg1Ys1VOTC2yQ?e=qqoLmb

[enzo1982]

Just had a look at the FLAC and AAC files in Audacity and this looks quite similar to what I reported in #40. Severe energy drops in the AAC sample where there are no energy drops in the original.

If no one else steps up, I can try and figure out what commit introduced this issue. Maybe that will lead the way to a solution.

[fabiangreffrath]

If no one else steps up, I can try and figure out what commit introduced this issue. Maybe that will lead the way to a solution.

Please move ahead. 👍

[nschimme]

@6str can you please test again