View Full Version : Audio CD with Dolby Digital tracks acts strange!
DYEWiTNEZ
1st April 2002, 13:34
Hello,
I have accomplished to make an Dolby Digital audio CD. The only thing is that my DVD player (Cyberhome ADL528) does not see it as a Dolby Digital disc (I think at least, because DOLBY DIGITAL doesn't light up on the panel). And when I turn on my Creative DD decoder, it also doesn't recognise the signal. My question is:
Is this because my DVD player and/or decoder set doesn't support this, or is it because I have made a wrong CD? I've read that you can burn a Dolby Digital wave file just as you could burn a regular audio CD.
Thanx!
MaTTeR
1st April 2002, 19:29
There is a thread in the forum discussing DTS audio CD's which might be of interest.
Your problem most likely is that the Creative card might be manipulating the DD stream before the external amp gets the signal. I'm thinking the WAV file has to be burnt as an audio CD before it can be properly decoded. Please search for the DTS thread I mention above, the thread has some very insightful information.
LigH
2nd April 2002, 13:36
I slightly remember an application which was able to create DD wave files to burn them as audio tracks - to maintain the usual CD audio bitrate, the DD data inside the wave file was padded by zeroes.
DYEWiTNEZ
3rd April 2002, 08:38
Nice! Happen to know which app this was? I used Nero to burn, but no good... My standalone plays it as a regular audio cd, and the decoder I hooked up only plays white noise... Argh!
DarkAvenger
3rd April 2002, 15:13
HeadAC3he can do it (though it plays slower with 48kHz content by nature).
DYEWiTNEZ
3rd April 2002, 17:51
Hi, thanks for your programs, but it doesn't seem to work...
Let me tell you what I've done:
First, I edited the track that I want to be in 5.1 DD (Basement Jaxx - Bongoloid). I saved to different 6 wave files.
Then, I started encoding these 6 wave files with SoftEncode. I tried saving them in DD WAV, burned them with Nero, but this gave me a strange audio CD with white noise (BUT, with no pauses, like some people told me, it has to be with silence)...
Now, with HeadAC3e, I tried encoding with SoftEncode to AC3 en let HeadAC3e encode them again to a DD WAV. But no good, HeadAC3e says: "corrupt stream" or "AC3 header not found".
What am I doing wrong here?
Thanx for all your replies!
DSPguru
3rd April 2002, 21:18
follow the BeSure link.. (signautre)
DYEWiTNEZ
3rd April 2002, 21:32
I also tried Surcode, but it only gives a DTS cd, I need Dolby Digital!
Thanx anyways
DarkAvenger
3rd April 2002, 21:32
When encoding from WAVes to DD, just set SOftEncode to DD Wave if your source is 44,1kHz. If not, you can set to DD (*.ac3) or if you have ac3 as source, opening in HeadAC3he should work.
DYEWiTNEZ
4th April 2002, 08:03
Like I said, I encoded the 6 mono waves to 1 DD wave with SoftEncode. This I burned with Nero and didn't work.
Then I tried encoding to AC3 and opened it with HeadAC3he, it gave me "corrupt ac3 stream" or "ac3 header not found".
The source files are 44.1 khz...
Strange huh?
DSPguru
9th June 2002, 19:45
Originally posted by DYEWiTNEZ
I also tried Surcode, but it only gives a DTS cd, I need Dolby Digital!
Thanx anyways with latest releases of BeSweet, you can now directly transcode your ac3 into Dolby-Digital-WAVs to be burned as DD-CDs.
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