So I found out the hard way that the DVDO VP50 Pro absolutely and unashamedly fills its pants when you try to send analogue or LD audio over HDMI.
If you have an AV receiver then you should be okay to just plug in a toslink or digital coaxial cable to the audio output and off you go.
What if you don't have an AVR? Or you don't have a spare port, or as is starting to creep in these days, you don't have a toslink or digital coaxial port on your AVR or soundbar etc?
In my case my Yamaha YSP-2700 has both optical and digital coaxial ports but they only work as audio returns when the video input is set to TV or as Aux channels for other devices, e.g. a Yamaha Musicast.
My VP50 Pro suffers from the audio output bug in that it won't send audio from analogue sources over HDMI.
So what to do?
I've found a possible solution in an HDMI audio embedder from the good folks at CYP (they seem to work on items very similar to DVDO et al).
The CYP AU-11CA will take an HDMI input and also a manually switchable Phono, Toslink or Coaxial audio feed and then spit them out to a single HDMI output. Thus allowing you to inject your own audio to an HDMI feed without loss of signal quality. It will also allow you to switch back to the original HDMI audio track. Another bonus is all LD audio track types are covered (AC-3 may not be, I will have to find out).
When running a capture and watching a disc at the same time I have the benefit of my CYP 4k22 matrix having dual HDMI outputs, meaning I can just use the second HDMI output to spit out audio and video to a capture device. The CYP matrix can also de-embed audio, meaning I can take a separate toslink cable to my Zoom U-44 if I want to capture audio separately. Or use a toslink splitter at the VP50 Pro audio output point to do the same job. CYP also make a digital downmixer that can even downmix DTS tracks without loss of signal quality if you want to go that route.
CYP devices are not cheap, but they do a lot of the complicated stuff not many others can do, or if others can then those are not of the same quality as CYP imho.
I picked up an AU-11CA yesterday so will update again once it arrives. Sure it may be an unnecessary item for a lot of folks, but might be a saving grace for others. Hope it will help someone someday. Fingers crossed this works.
http://www.cypeurope.com/store/store/ap ... -into-HDMI