Bulgarian vs English vs German vowel nasalization

Bulgarian seem to nasalize vowels after a nasal consonant "не", "ме" American English and Standard German seem to nasalize vowels in front of the nasal consonant: american "in" american "on" German "bahn" Compare to American “not” not nasal American “ma” not nasal This also explains why americans often say prints instead of prince, and cents instead of sense. The velum closes right after the nasal consonant, resulting in a moment of “n with velum closed” which causes the slight “t” sound before the s. In bulgarian, we can pronounce “ns” without inserting a t, because our s is actually nasalisend, alhough that cant be heard American is generally nasalizes more British english also generally nasalizes before the consonant, but semms like educated speech (rp) doesnt follow this rule TODO: fix, add “dn” not in english source: A CROSS-LINGUISTIC TYPOLOGY OF NASAL HARMONY http://roa.rutgers.edu/files/405-0800/roa-405-walker-3.pdf

East Bulgarian soft - hard "a" difference

East Bulgarian apparently makes a distinction between soft "a" and a hard "a" sounds, following the same rules as Russian. Do note, that the vowel qualities are still very different from Russian.

Баня from dict.cc user stuny
https://audio.dict.cc/speak.audio.v2.php?error_as_text=1&type=mp3&id=192504&lang=bg_rec_ip&lp=BGDE

Ям from dict.cc user stuny
https://audio.dict.cc/speak.audio.v2.php?error_as_text=1&type=mp3&id=1079035&lang=rec&lp=BGDE
The "a" in баня noticeably backer than a Sofian pronunciation and the "a" in ям is noticeably fronter. I would describe the east hard "a" as similar to the one in Standard German, which I also believe to be the same as the LOT vowel in Standard American (unmerged).
TODO: draw on vowel chart and compare the soft a to some other sound I know