Re: 24-bit/96KHz LPCM audio

Bj|rn Englund wrote:
> Thu Apr 10 2003, Dave Chapman wrote:
> 
>>Ogle (and vlc and mplayer) fail to correctly play this, but I propose to
>>add support to Ogle to fix this.
> 
> Great, I don't have any 96/24 audio on the dvds I have tried so far
> so I haven't been able to test it.
> What dvd is it?

It's a Jazz recording called "Starker Plays Baker".  It is published by 
"Classic Records" who call it a "DAD" - Digital Audio Disk.  The 
catalogue number is "DAD 1032".

Two or three audiophile record labels released "DAD format" disks a 
couple of years ago - before the DVD-Audio standard was finalised. 
However, they are now very hard to find.

I bought it for the purpose of testing 24/96 playback in Linux DVD 
players.  My aim to eventually author my own DVDs with 24/96 PCM audio 
tracks - but this involves adding 24-bit support to a whole range of tools.

Another unusual feature of the DVD is that the video stream is simply a 
still image containing the track name.  However, it seems to be very 
cleverly mastered - demuxing the video from the VOBs gives me a very 
small file and using "mpeg2dec -o pgm" only gives me 13 images - one for 
each track.

Thanks for your comments - I'll probably come back to you after I've 
fully understood the existing code.

48KHz->44.1KHz resampling is something I also need added to ogle so that 
DVD playback will work on my Linux iBook - the sound hardware can only 
do 44.1KHz.

Regards,

Dave.