Displaying 2 results from an estimated 2 matches for "id342556".
2008 May 31
2
Channels ordering bug
...is-tools use a wrong order for channels when dealing with
5.1 surround WAV files.
More precisely, I find in the Vorbis specification that the output order is:
0: front left
1: front center
2: front right
3: rear left
4: rear right
5: LFE
(source: http://www.xiph.org/vorbis/doc/Vorbis_I_spec.html#id342556 )
At the same time, the order of channels in WAV files seems to be:
0: front left
1: front right
2: front center
3: LFE
4: rear left
5: rear right
(source: http://www.microsoft.com/whdc/device/audio/multichaud.mspx#E4C )
Now, in oggenc/audio.c, I see that the permutation array is used that way...
2008 Sep 07
7
Mapping = 1 Ambisonic Vorbis flag
...was a lot of discussion about Ambisonics and Monty kindly stated that
Mapping = 1 ; Denotes and Ambisonic file as opposed to = 0 which is 1 speaker/ 1 channel
Has this been written explicitly into the standard?
Which standard should I be looking at?
http://xiph.org/vorbis/doc/Vorbis_I_spec.html#id342556
specifies only Mapping = 0
The reason why I'm searching for the actual physical definition of the flag is the unwashed Ambisonic Community would like this to be just a bit (bit 1) rather than a single value (Mapping = 1)
That's cos we might want more bits from yus guys later if / when we...