pot player and high bitrate AVC audio issues

Mindmatter wrote on 8/27/2015, 12:46 PM

Hi all,

I used to be quite happy with the pot player, as it would digest and flawlessly play almost any codec.
But today, I spent an hour trying to figure out a weird audio issue that occured always at the exact same place on a 25mbs AVC render. It always had a strong volume rise followed by a volume drop and some more before it sort of stabilized on a lower level, as if someone had suddenly added a strong compressor or limiter. I first went through every audio setting in my Vegas project but remained clueless, before I realized the render played normally in VLC.
Anyone else had this issue with potplayer?
Thanks!

Comments

musicvid10 wrote on 8/27/2015, 2:12 PM

Its an envelope or keyed effect.

Mindmatter wrote on 8/28/2015, 2:44 AM

Thanks musicvid10, but there's no keyed FX or at all on the audio track in v13, just a volume automation which actually isn't occuring in that particular moment in the clip, and the clip plays OK in other media players. It must be a potplayer issue.

musicvid10 wrote on 8/28/2015, 6:56 PM

Got some agc or normalize enabled in that player?

Mindmatter wrote on 8/29/2015, 6:08 AM

Thanks Musicvid , that was it!
There was a normalizer enabled by default in the audio settings - could have tthought of that myself...
weird artefact though, especially as in the original file, there's nothing happening, volume wise, at the particular spot potplayer always crushed the volume.

musicvid10 wrote on 8/29/2015, 7:50 AM

All it takes is a single spiked sample.
Open the file in Sound Forge and you'll see it.
Active normalize in players is a joke.
Glad you got it sorted.