primusmp
25th January 2006, 01:16
Ok here's the deal I've read almost every thread there is concerning the AC3 low sound level. (In the Spanish and English Forums). I Understand the Ac3 coding guide and applied it to my Ac3 files, so this is what happens:
PCM track has a "normal" sound LEVEL (I mean by this that my TV sound volume must be around 10 to hear it properly)
AC3 track has a "low" sound LVEL (TV sound level about 50 to hear it properly)
Same sh--t with PowerDVD PCM track loud AC3 low... so I figured well not the DVD standalone player nor PowerDVD are decoding the Normalization Value correctly and in order to hear the AC3 track properly, I must get an AC3 Decoder but.... (there's always a but) I have another DVD that both AC3 and PCM ltracks play at similar volume (not exactly the same but both in the "normal" range).
So I figured that maybe it's the encoder (I've been using Scenarist AC3 encoder) so I changed and tryed Soft-Encode but the resulting AC3 i's still low.
So now I don't know what to do.. I know it's possible to create AC3 and PCM with "similar" levels but HOW?????
Maybe this DVD that plays "OK" has a "pumped" AC3 but that should clip the sound... so I don'know..
If there's a player problem (i.e. player not normalizing properly the AC3 track) why is this correct DVD track played at decent volume (same players).
In case you want to know original tracks ara 48k DV=> WAV PCM. I even tried normalizing the tracks in Cool edit before encoding to Ac3 (not just measuring them but normalizing and re-measure them)
I'm inviting you to design a series of tests or receipes to see if I/We can solve this...
Thanks.
Sorry the thread dot duplicated because of a browser issue
PCM track has a "normal" sound LEVEL (I mean by this that my TV sound volume must be around 10 to hear it properly)
AC3 track has a "low" sound LVEL (TV sound level about 50 to hear it properly)
Same sh--t with PowerDVD PCM track loud AC3 low... so I figured well not the DVD standalone player nor PowerDVD are decoding the Normalization Value correctly and in order to hear the AC3 track properly, I must get an AC3 Decoder but.... (there's always a but) I have another DVD that both AC3 and PCM ltracks play at similar volume (not exactly the same but both in the "normal" range).
So I figured that maybe it's the encoder (I've been using Scenarist AC3 encoder) so I changed and tryed Soft-Encode but the resulting AC3 i's still low.
So now I don't know what to do.. I know it's possible to create AC3 and PCM with "similar" levels but HOW?????
Maybe this DVD that plays "OK" has a "pumped" AC3 but that should clip the sound... so I don'know..
If there's a player problem (i.e. player not normalizing properly the AC3 track) why is this correct DVD track played at decent volume (same players).
In case you want to know original tracks ara 48k DV=> WAV PCM. I even tried normalizing the tracks in Cool edit before encoding to Ac3 (not just measuring them but normalizing and re-measure them)
I'm inviting you to design a series of tests or receipes to see if I/We can solve this...
Thanks.
Sorry the thread dot duplicated because of a browser issue