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HavePh8
21st December 2002, 11:31
Hey,
I have authored a dvd that contains multiple videos that I have filmed. My problem is as follow.
I compressed my audio to mpeg-1 audio layer II in TMPGEnc(48,000Hz, Stereo, 384kbits/sec) and am doing my DVD authoring in Scenarist.
My reason for not doing it in PCM wav is because I have 2hours of footage and it wouldn't fit. I'm not doing it in ac3 because scenarist's encoder lower's the sound of my audio by more that 50%.

I have 3 videos and 3 audios all compressed the same way. Once my DVD is burned, I stick it into my dvd player(which is a Playstation 2) and play it. The first 2 movies play perfectly but the third one has no audio playing.

Any of you experienced a similar problem?
Patrick

P.S.: I do not know if this is in the right section for this or if it should be into DVDAuthoring or what..

P.P.S.: if I try the dvd into my DVD-ROM drive the audio works perfectly on all videos.
DSPguru
21st December 2002, 12:58
pal / ntsc ?
HavePh8
21st December 2002, 22:30
ntsc
DSPguru
21st December 2002, 22:37
http://forum.doom9.org/showthread.php?s=&threadid=40465&perpage=4&pagenumber=2
HavePh8
21st December 2002, 23:18
yeah, I had seen that.
Would you suggest boosting the sound level of my original wav file before compressing into ac3 since the sound gets lowered to about the half of the original file? Or is there a way around that?
DJ Bobo
21st December 2002, 23:29
I don't think this has anything to do with sound being MP2, as, as he stated, 2 DVDs work and one doesn't, although all of them have MP2 sound (correct me if I misunderstood something!)

I don't know where is the problem though. If you say you authored them exactly the same way...

Anyway, if you're going to encode AC3, it's senseless to make your source louder, you'll get clipping all the time and it will sound terrible, no matter how low the volume of the AC3 will be.
You can disable the compression characteristic, setting it on "None", so the volume remains the same, but I don't know how DVD players handle this
HavePh8
22nd December 2002, 06:47
Well, it's not 2 dvds. It's 3 movies on a dvd. 1 animated menu with sound and 2 movies. The menu has sound, the 1st movie has sound but the second doesn't.