A place for interesting quad encode/ decode tech articles

[Sonik Wiz]

It says that the publisher does not have the licence to enable download. I ran into that issue before. I doubt that signing up to Issuu would remove that restriction.

Does anyone know a way to download these files?

I found a work around:

https://issuudownload.com/

It works nicely on all files that are actually there. For those that have vanished I think I found the reason here:

 

[MidiMagic]

Hi! Does anyone know how Dolby matrixed the height channels into Dolby Pro Logic IIz 7.1 discrete recordings? Furthermore, is it possible to create an Lt/Rt DPLIIz 7.1.2 downmix with height channels matrixed in? I'm pretty sure these are the DPLIIx encode equations for 7.1 to 5.1 then 5.1 to 2.0:

Ls = Lss + (–1.2 dB × Lrs) + (–6.2 dB × Rrs)
Rs = Rss + (–6.2 dB × Lrs) + (–1.2 dB × Rrs)

Lt = L + (–3 dB × C) – (–1.2 dB × Ls)j – (–6.2 dB × Rs)j
Rt = R + (–3 dB × C) + (–6.2 dB × Ls)j + (–1.2 dB × Rs)j

So I was wondering if it's possible add in the height channels somewhere. I saw some DPLIIz 7.1.2 equations on MidiMagic's amazing website but I couldn't figure out how to get them to work after some testing. If anyone has any insights I'd love to hear them! Thanks for reading!

They aren't matrixed into the recordings. That is how one product downmixed them into two encoded channels.