I'm more of a fan of the Bix/Frankie Trumbauer cuts, but this rare 1928 newsreel clip of Bix with the Paul Whiteman Orchestra (Bix can be seen about 1:10 in) is worth a look. Says Harry Oakley, who posted it (and disabled embedding):
It turns out that Bix' embouchure was as unorthodox as his valve technique and that he played with puffed cheeks - something which was not known before the discovery of this footage. Although it has been claimed that Bix misses notes and/or plays some notes without puffed cheeks, it is now clear that in fact he is written into the score for only a few notes of the passage and that he deliberately skips notes. Every note he does play is with puffed cheeks.
More about Bix here.