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Content Protection sucks!<br><br>Going via an analogue hole would be one way, but a pain in the arse. I wouldn't expect any prosumer, and even less professional, to allow you to bypass encryption though. Software solutions may show up...<br><br>Seems there is one HD switch/multiplexer available which does though. http://www.moomecard.com/index.php?option=com_content&view=article&id=10&Itemid=16 Output the separate audio and video you want (although audio is on 2x TOSLink.)<br><br>But obviously there is the worry that a new version of HDCP will be release tomorrow so bypassing in this manner is never ideal!<br><br>Dale.<br><br><div><div id="SkyDrivePlaceholder"></div>> Date: Sun, 19 Feb 2012 14:11:14 +0100<br>> Subject: Re: [LAU] What audio interface to use for a Linux-powered surround preamp?<br>> From: jherland@gmail.com<br>> To: dj_kaza@hotmail.com<br>> CC: gheskett@wdtv.com; linux-audio-user@lists.linuxaudio.org<br>> <br>> Thanks for your reply; some comments below.<br>> <br>> 2012/2/19 Kaza Kore <dj_kaza@hotmail.com>:<br>> > As to video. There are some HDMI capture cards available, EG Black Magic if<br>> > on a tight budget, but from a quick reading it seems they all only support<br>> > the baseline of 2 channel audio on HDMI, rather than the possible 8<br>> > channels.<br>> <br>> [...]<br>> <br>> An added complication here, is that I want something that will work<br>> with HDCP (AFAICS, the prosumer video equipment you mention will not<br>> accept HDCP signals). Also, I'm not really in the market for lots of<br>> video equipment. I simply want something that can switch between<br>> mutiple HDMI sources (including consumer equipment such as BluRay/DVD<br>> players), and then split the chosen HDMI signal, so that video goes<br>> directly to the screen, and audio goes to my computer for further<br>> processing.<br>> <br>> Hence, I'm not really in the market for prosumer/professional video<br>> equipment. I don't actually want the video signal into my computer at<br>> all. However, there is currently no (consumer-level) standard (except<br>> HDMI) for transferring multi-channel uncompressed digital audio<br>> between devices. Ideally, I'd want a device with HDMI input and<br>> HDMI(video) output, along with outputs for transmitting 8ch LPCM<br>> (decoded from the HDMI audio signal). The audio output could be<br>> something like 1 x ADAT, or even 4 x SPDIF (or AES/EBU) - I don't<br>> really care - as long as it could be straightforwardly connected to my<br>> computer.<br>> <br>> > Or has the HDMI switch done away with the need for a lot of this? I would of<br>> > used a basic switch, which are available cheaply, then into the computer<br>> > using one of the above methods...<br>> <br>> For now, I am using a cheap HDMI switch with an audio de-multiplexer<br>> that redirects the 2ch. bitstream to an SPDIF output. This is<br>> obviously not ideal, since it cannot handle >2ch LPCM (including the<br>> Dolby TrueHD or DTS-HD Master Audio formats), but it _is_ able to do<br>> the Dolby Digital and DTS formats that are compressed into the 2ch.<br>> stream. This is "good enough" for now, since most of my video material<br>> is DVDs (although the BluRay collection is growing slowly), and most<br>> of the high-quality audio is in computer files that I can play<br>> directly from the computer and thus does not have to traverse the HDMI<br>> switch.<br>> <br>> Considering the direction technology is moving, I might have most<br>> video and audio accessible directly from the computer in the future,<br>> thus making the HDMI switch less important (only needed for things<br>> like console games, etc.)<br>> <br>> <br>> Have fun! :)<br>> <br>> ...Johan<br>> <br>> -- <br>> Johan Herland, <jherland@gmail.com><br>> www.herland.net<br></div> </div></body>
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