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22nd February 2011, 20:27 | #1 | Link |
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HDMI device that can capture (unencrypted) "HD" audio sources?
I want one for legitimate reasons, not for some organisation's definition of pirating...
I'm interested for the purpose of capturing HD audio (normally found in BD's & PS3 Games, rarely XB360) via HDMI, running it through a HRTF filter (for 2ch simulated surround), & then out through my modded Essence ST. I realise with BD movies I can already do this in windows without the need for a capture card, so long as I have a PAP compliant card, BD reader, & softplayer that can do DH or similar. And it's irrelevant whether my card is PAP compliant in Linux, so once the BD is ripped I should also be able to do this. But as my Essence ST is not PAP compliant, it's not possible to handle the HD audio stream via the PAP process in Windows. Capturing BD output from my PS3 via HDMI (once HDCP is stripped) should remove the PAP burden, then hopefully I can pass the signal to a HRTF filter, and then onto my Essence ST. Another reason for HDMI capture is HD audio from console games... Again I want my Essence ST to be the final DAC in the chain, not an AVR. The only concern I have is desync, but if audio & video are passed to the capture device & video "passed-through", then clocking should remain "fairly" in-sync. Of course because of the post-processing assoc/w running through a filter and then on to the ST, tweaking of timings will be necessary. Sorry if this doesn't clearly convey what I'm wanting, 5am, need some sleep! Thank-you for your time/thoughts/advice, good night. Last edited by jalyst; 11th April 2011 at 15:31. |
23rd February 2011, 00:23 | #2 | Link |
interlace this!
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would SPDIF do the trick? ps3 can output that, at least from an unencrypted blu-ray (i haven't used a ps3 for anything except checking BD-R's before replication).
otherwise you can grab a blackmagic card that captures HDMI, though it might be a touch expensive for this purpose.
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23rd February 2011, 07:01 | #3 | Link | ||
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Hi Mug thanks for the thoughts/input, tis greatly appreciated!
Nah S/PDIF cannot transfer any of the HD audio formats, best it can do is DD/DTS 5.1. Quote:
I do own an XB360 Slim, it doesn't do Blueray, but some Xbox games use DD and DTS HD audio formats.* I want a HDCP compliant card so conversion from multi-ch HD to 2ch simulated surround can be done, & then passed to my ST for DAC. The same would be handy for game audio coming from a PS3, if/when I get one. Quote:
Not after what's been said here & in the thread linked to from there. If what I'm wanting is do-able with the right hardware/software/tweaking, & results in reliable functionality, then the price is worth it IMO. I've seen users on this forum mention many other cards that can capture HDCP sources. I'm just not certain if what I'm proposing will be do-able with any of them... Any ideas on how to proceed? Do you know of anyone more knowledgeable in this area? Thanks again & all the best. *Not nearly as many as PS3 I believe... Last edited by jalyst; 23rd February 2011 at 07:28. |
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23rd February 2011, 08:32 | #4 | Link |
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No capture card ever can capture HDCP signals.
For consumer segment that's considered to be a copyright infringement. For professional segment there's no need for this (no signals in studios are protected). Dead end
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23rd February 2011, 08:52 | #9 | Link |
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http://forum.doom9.org/showthread.ph...32#post1457132
there's one or two other exmples if i recall correctly |
23rd February 2011, 09:23 | #13 | Link |
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I was kind of hoping for a succinct explanation as to why it will or won't be possible to manipulate the HD audio once captured.
Video I mainly just want to "pass through" via the capture device, or if not possible, then just connect straight to the display. |
23rd February 2011, 18:50 | #15 | Link |
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well mainly because I'd rather no throw $99 down the drain
*update* another thread going here that may be of interest http://forum.videohelp.com/threads/3...=1#post2059206 night. Last edited by jalyst; 23rd February 2011 at 18:54. |
23rd February 2011, 21:01 | #16 | Link | |
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Quote:
Edit: additionally, now that the PS3 has been jailbroken, it'll probably be possible to just disable HDCP on the PS3 side soon as well. Last edited by TheFluff; 23rd February 2011 at 21:41. |
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23rd February 2011, 22:42 | #17 | Link |
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There are some lcd tv's out there that contain a chip that does fast hdmi switching between various hdmi connectors in the back - the output of that chip is unprotected hdmi so you can solder the hdmi wires to the output pins and have hdmi out.
I think the particular tv in the "white paper" was a Samsung that had 3 hdmi inputs in the back and advertised fast hdmi switching - I don't remember the link anymore but I think it was stored on Google. Maybe search my previous posts for a link, I'm too lazy to do it. |
24th February 2011, 03:34 | #18 | Link |
interlace this!
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i feel a slight affinity for BMD products, mainly because i worked at the place BMD (and before that, digital voodoo) started from.
call it stockholm syndrome... this was a post house that did not treat it's workers well, but gave many talented people a start. this guy built a capture card in the back utility room, started a company, then got screwed, then came back to the same place, built another capture card, started another company, and now they're taking over the post-hardware world (buying up DaVinci is huge). to be honest, i wasn't aware that HDMI even supported 480p... certainly no editing program supports it. that is probably why support is hard to get from them - they're bogged down with idiots who think they can edit just because they bought a mac and final cut studio, asking the same questions over-and-over (i'm justified in this opinion - i've had to fix many, many messed up FCP projects made by people that didn't know how to edit) on the HDCP issue, i've no idea. perhaps a PS3 firmware hack will emerge that doesn't apply HDCP in the first place?
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24th February 2011, 06:32 | #19 | Link | |
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Quote:
In Germany the HDCP strippers are not allowed. Even Spatz relabelled Taiwanese things. In 2008 I witnessed at a HiFi Fair that the police came and confiscated all these strippers. The reason is the same as for cinavia, see my post there. Nobody needs legally a HDCP-stripper and your own creations are neither cinavied nor HDCPed.
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24th February 2011, 08:52 | #20 | Link | ||||
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Quote:
What did they do with high bandwidth audio formats often found in BD's & the occasional XB/PS3 game? Quote:
I know with the master key now leaked, it should be easy to implement a mechanism in fw, whereby it's impossible to revoke keys. But I thought devising silicon which can handle the encryption & the handshake process, would be much, much, harder. Can you recommend anyone I can approach about designing something like this? Quote:
I don't suppose you could elaborate on these several hacks for existing device drivers? And their limitations, if any... Quote:
I mainly want a capture device for grabbing HD audio in Xbox games. But longer-term I wanna grab HD audio from Games & maybe BD's on the PS3 too. BD's because my Essence isn't PAP compliant, so I can't play BD audio in Windows. A way around that is to rip & convert the BD 1st, so I guess capturing BD audio from PS3 is less important. Last edited by jalyst; 25th February 2011 at 18:56. |
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