AC3 Filter's audio volume problem between HDTV and non-HDTV (SD)

Hello,

I am having problems with low audio volume with non-HDTV (TV ads, shows, and movies). HDTV parts (TV ads, shows, and movies) have louder audio volume and sounds good. After messing around with my setups and testing another machine, I found out it was because of AC3 Filter (v0.9 and v1.11) because I tried using PowerDVD7's CyberLink Audio Decoder and it didn't have volume problems (a little low and no way to amplify like in AC3 Filter's voice channel boost) between HDTV and SD (also had correct directional sounds).

I use DVB Viewer v3.5.0 to watch live, record, and timeshift my DTV stuff (SD and HDTV). I also use Windows Media Players (v6.4 and v10), DVB Viewer, and Media Player Classic (MPC) v6.4.9.0 to play back my recordings (TS (only in MPC) and MPG). I use Windows XP Pro. SP2 on two different machines (one has old Klipsch ProMedia v2-400 [analog; 4.1 speakers] and other one has a cheap old Sony headphone]. I know it can't be my computer, drivers, sound cards, speakers/headphones, DirectX 9.0c, etc. I get DTV from over the air (OTA) in Los Angeles, CA, USA area so no cable and satellite services.

http://putstuff.putfile.com/59169/1962117 has a 17 seconds 20 MB MPEG-2 video clip of a HDTV recording (a TV ad in stereo and Lost in its 5.1). You can see if your AC3 Filter does it too.

I think there's something wrong with AC3 Filter. I wonder why. I will use CyberLink's audio decoder at the moment until I can fix this AC3 issue (if possible). Is there another AC3 Filter clone? Is anyone else having this problem? Or had this problem and know how can I have the audio louder for these non-HDTV parts?

Do home theaters (not computer based) have this problem too?

Interesting. Does SageTV use AC3 Filter or something else? What nother AC3 codecs did you try? Did you try PowerDVD 7's CyberLink Audio Decoder (seems to work well with 5.1 setup and leveled volume between HD and SD)?

I forgot to mention that I do use OTA (will fix it in my original post).

Ahh. You can use the trial version of PowerDVD. I got this tip from DVB Viewer's forum a few months ago.

Oooh, I think I know what's the problem in AC3 Filter. Volume Gains. I set this back to 0 and used Gain for Masters to about 15. Volumes were much better. This is only primitive since it is late at night and I couldn't play with bass and loudness. I will fiddle with this later tonight (Lost!). I hate it when music are louder than voices though.