squee666 Wrote:and i used hev2-aac vbr
didnt notice any difference in audio quality but file size

Probably an a voice video you won't notice too much difference, since SBR only replicates upper frequency ranges, and most voice operates in the lower frequency ranges.
However, it will sound very similar to LC-AAC.

You will most likely notice a difference with music however (at lower bitrates (≤64kbps) at least).