... why? ...mp3 320kbps doesn't.
https://www.youtube.com/watch?v=4xdaUcDO1es
EDIT: Oh, same result with any other aac bitrate. Even just 48kbps goes up to 16kHz. It seems that settings are without effect on aac.
I would use x264 with mp3 audio, but unfortunately Sony Vegas can't load recordings with this setting... bummer :-)
best regards
https://www.youtube.com/watch?v=4xdaUcDO1es
EDIT: Oh, same result with any other aac bitrate. Even just 48kbps goes up to 16kHz. It seems that settings are without effect on aac.
I would use x264 with mp3 audio, but unfortunately Sony Vegas can't load recordings with this setting... bummer :-)
best regards