AGC - Automatic Gain Control (Audio level balencing)

[Kombi914]

does VLC player have the ability to balence the playback levels between music in a playlist?
songs recorded in the 80's a at lest 10dB softer than today.
radio stations use an AGC to cotrol this so diferent recoding levels are all the one level on the output signal.

i have tried adding (--audio-filter normalizer --norm-buff-size 10 --norm-max-level 1) and this seems to help a little but mostly does not change the volume, only compresses the sound.
When a really soft song comes along, i need the level boosted as its too soft for the normalizer to touch i think?

any help on having a level balanced playlist would be great.

[Lotesdelere]

VLC can use Replay Gain but your files must have been recorded with this info.

VLC has also regular dynamic compression for AC3 and DTS.

[Kombi914]

how do i generate files with REPLAY GAIN info?
can this be added as metadata in "itunes tags"

my files are mp4 video with aac audio format

[JoanTheSpark]

check out something called aacgain.. the gui for it is called iGain.