audio over multiple videocards?

Mar 16, 2013 at 4:44pm

audio over multiple videocards?

Hello,

I’ve got a client who needs a three-monitor installation, each running various movies, with the audio from each set of movies coming out of their respective monitors. I’ve been working with a triplehead2go DP, but there isn’t audio support across that. I’m looking into getting a PC with multiple video cards, and running three instances of Max, one showing on each card. Will the audio from jit.qt.movie get funneled to the HDMI outs by itself? I’m a Mac person, and live on a laptop, so I know little about the subtleties of this…. Or will the audio all get directed to the main outs of the computer, and I’m wasting my time even thinking about it?

Thanks,

M

#67128
Mar 16, 2013 at 4:56pm

I haven’t tried this but my guess is jit.qt.movie will by default output all audio through your system’s main outputs . jit.qt.movie is unaware of where its graphic output is being displayed. You’d have to grab each video’s audio with spigot and route it to the correct outputs. That’s assuming the HDMI audio outputs show up as audio interfaces in Max. Don’t know if they do. Haven’t enabled HDMI audio on my hackintosh. If they don’t the workaround would be the traditional multichannel setup with a USB/FW interface.

#241528
Mar 16, 2013 at 4:57pm

triplehead2go and external sound car could be a good option?

#241529
Mar 16, 2013 at 4:59pm

AFAIK, if you’re using the audio output directly from the qt.movie, it will get directed to the system output.

if each monitor comes up as an audio output in max’s audio status window, you should either use spigot~ or extract the audio into buffer~s and route using MSP.

#241530
Mar 16, 2013 at 5:13pm

The problem with using an external soundcard is that I can’t send the audio to the monitors unless I use component video out — I can’t send video over HDMI and audio over something else, since monitors these days can’t deal with such complexities, and the idea isi to avoid using external speakers above & beyond the ones in the monitors. I suspected I’d need spigot~, but the real question is whether HDMI or DP outputs will show up as an audio out at all in Max…..

M

#241531
Mar 17, 2013 at 3:29pm

Using VVVV is very easy

#241532
Mar 18, 2013 at 6:34pm

Rob: I get what you’re saying, but the question is: how do those cards behave? do they appear in the status window? I have no idea, I’m just a laptop user….

M

#241533
Mar 21, 2013 at 2:24am

Just for the record, I have it on good authority that a video card that supports HDMI or DP will show up as an audio device in Max.

M

#241534

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