Hi list,
Please forgive if it's the wrong place to post this question.
I'm trying to build a sound server connected to my speaker set that will act as:
1) SPDIF receiver from TV
2) Network sound server
My hardware:
1) Raspberry Pi
2) USB sound card based on CM106 chip.
My Software:
1) Raspbian
2) Linux 3.10.25
3) Pulseaudio 2.0 (will try to compile 4.0 tonight)
For this to work as a SPDIF receiver I need to somehow connect SPDIF IN and analog out. So my question is, What is the best way to configure it? If I get it right, I have three options here:
1) Configure a loopback on hardware level for the best latency and CPU usage
2) Configure a loopback on alsa level
3) Configure a loopback on pulseaudio level since I will use it for mixing anyway
I am currently trying to understand if my hardware supports Option 1. I have found a CM106 datasheet which suggests that setting bit 2 (SPDIFLOOP) of register REG1 will enable SPDIF loop-back, however it is not clear whether the sound from SPDIF IN will be routed to SPDIF OUT or analog output and also whether this feature is what I'm looking for.
If the first option is not available, I would also ask for your advice on which of the two last options is preferable.
Thanks in advance!
Best regards,
Denis Shulyaka
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