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