Does anyone know of a device that will extract the dolby digital plus audio stream from an HDMI source, transcode it to vanila digital and output over optical? I have searched for a decoder, but I cannot find one.
Why? Netflix and Amazon on my Roku only stream digital plus, but my older avr only has an optical input and is limited to decoding ac3.
This ViewHD HDMI audio extractor (Amazon) is pretty close to what I am looking for. It takes hdmi a/v as a source, and outputs audio over SPDIF, but from its description:
The SPDIF optical audio output supports all audio formats up to 5.1CH Dolby Digital 5.1CH / AC3, DTS 5.1CH AND Dolby Digital Plus “DD+” formats. TOSLINK optical audio output does not support higher formats, such as HD audio (Dolby TrueHD, DTS-HD Master Audio, PCM5.1 and beyond).
The HDMI output has identical video and audio signals as the A/V signals coming into its HDMI input.
I don’t think it will actually transcode DD+ to DD. I think it will just pass through the optical out whatever audio comes in from the hdmi. Nothing I can find specifically describes transcoding.
Yeah, I feel your pain about DD+ and EAC3. I have an older AVR that can’t decode that and it just won’t work. Unlike Dolby TrueHD and DTS-MA that have a backwards compatible stream, DD+ doesn’t have a backwards compatible stream.
Your best bet is to get another used AVR with analog RCA 6 or 8 channel in, then use the sound card analog out.
That is probably the route of least resistance. I am surprised though that such a device isn’t readily available. I guess I am overestimating how many people are holding onto old receivers.