v0.54 DTS audio drop-outs

[colinhunt]

Tried to transcode Scandinavian PAL-versio of The Texas Chainsaw Massacre (2003), which has DD5.1, DTS5.1 and three commentaries.

Removed DD5.1 audio, but left in DTS and commentaries. Selected

- One-Click mode
- Dynamically assign Cell Bitrates
- One Pass VBR (w/ analysis)

Disc has no extras, so left Steal Space and Half-D1 disabled.

Resulting files were 4484MB, burned them on a very high-quality DVD-R at 4x, and tested the disc on a Philips DVD-player. During the first chapter, DTS audio drops out several times; the amp loses sync momentarily. Drop-outs don't seem to coincide with scene changes.

.: colin

[brashquido]

Something similar to this happened to me as well using Apple 4x DVD-R media. Burnt the same encode again to another Apple 4x DVD-R at 2x and the problem went away. I now never burn faster than 2x as I'd rather wait an extra 15 minutes than have a stack of expensive DVD-R coasters.

[colinhunt]

brashquido,

thanks for the comment, but I can tell you with 100% certainty it's not the media that's the problem in this case. I re-encoded the movie last night; de-selected "Dynamically assign Cell Bitrates" and chose three passes instead of one. Did a quick test and heard no DTS drop-outs.

.: colin

[TCrowe]

I am a brand new DVD Rebuilder user. The other night I did my first backup using an NTSC version of The Bounty. I picked this one as my first test because it is one of the more straight forward movies I own. Menu, movie, trailer, 1 5.1 audio track. Used DVD/RB .53 CCE 2.50 on an AMD/XP box and was really happy with the results. Burnt on Fuji (my most reliable discs) and had audio drops in three locations of the movie during playback on my Pioneer. The drops were always at the beginning of the chapter.

I just wanted to mention an unusual observation. Back in the day when I did NTSC DVD > SVCD using DVD2SVCD I would get 2-3 frames with Horizontal (creating a slight stutter) at the beginning of a few chapters. I was able the resolve this problem thanks to a kind soul at Doom9 that told me to turn on IVTC. While this fixed my problem it did add a ton of time to the encoding process. One other problem I had (never fixed) was at the beginning of every 2nd and 3rd disc I would get these slight audio drops at the very beginning of playback. Every disc greater then 1 created this problem..

Why am I talking about DVD2SVCD? When I first did a DVD>DVDr using the Big 3 the Horizontal lines returned but no audio dropouts. On my second attempt I turned on IVTC and everything was fixed. I knew that DVD/RB did not support IVTC but gave it a try anyway. To my total surprise I did not get the Horizontal lines. But instead of Horizontal lines I got these audio dropouts. In fact where I was expecting the Horizontal lines to appear I got audio dropouts instead. The audio dropouts sound identical to the audio dropouts I got at the beginning of my secondary discs created with DVD2SVCD.

I really don't know if this says anything but for the last couple of days I have been nagging myself to at least mention something here. Sorry for the long post.