Audio playback specifics

[Margus Voll]

DeckLink HD Extreme 3D™ gives you HDMI Audio Output 8 Channels embedded in SD and HD.

For me it seems that it depends on your video io mainly.

Have not tested it myself.

—

Margus

https://iconstudios.eu

[Ola Haldor voll]

I’m doing the same thing. If I get a FCP project file I make sure to create an offline with sound, and ‘extract audio’ in Resolve from that offline. I do the same thing if I get only a big QT file too.

I believe I read somewhere that Resolve won’t play more than stereo. But if it could to 5.1 it would be super awesome.

I’ve recorded a few grading sessions and play-outs on my other Mac Pro with Media Express. There’s clearly 8 channels through SDI.

[Kevin Cannon]

Yeah, the Decklink is definitely capable, in FCP I can send 8 stereo tracks to 16 channels over SDI, no way presently to see what is going out on the HDMI…

In Resolve, playing back an L/R aiff I definitely see on my scopes that 8 channels are being output from the Decklink, but channels 3-8 are exactly the same levels as 2, so it looks like either Resolve or the Decklink is just filling them in…

The manual doesn’t seem to explicitly state that ‘on-disk audio’ is limited to 2 channels, but with WAV and AIFF, I’m not sure how you would get more… It would be fun though.

If anybody is using the LTC option to sync with another device that plays back 5.1, I’d be curious to know what the set-up looks like.

KC

prehistoricdigital.com
hardworkingpixels.com

[Rohit Gupta]

Hi Kevin,

Resolve supports playing back multi-channel WAV and AIFF files. On the Decklink card this will come out on the audio connectors available on the board as well as in the SDI stream as embedded audio (max of 16 channels).

Regards,
Rohit

[Kevin Cannon]

Thanks Rohit! I’ll test out creating a 6 channel AIFF (which I did not know existed). Perhaps I can replace the HDP2 with an HDLink or SDI>HDMI mini-converter that can get that sound into a receiver or amp…

It will be fun to review grades and outputs as completely finished projects…

KC

prehistoricdigital.com
hardworkingpixels.com

[Rohit Gupta]

Try with a WAVE as well as it is much more commonly used I think.

[Ola Haldor voll]

Warren
Any codec in the Prores family, XDCAM HD and DVCProHD seems to work fine here.
Do you get an error message or is it just doing nothing?

[Christopher Tay]

Hi Rohit,

Will the multi-channel audio play out from the HDMI output of the Decklink card as well ?

-chrispy

[Kevin Cannon]

Cool so a multi-channel AIFF plays back over SDI as it should – I don’t have the ability presently to monitor more than channels 1&2 on the HDMI, so I’d be curious about that as well…

KC

prehistoricdigital.com
hardworkingpixels.com

[John Sellars]

So how does one actually use the audio extracted from a clip? It doesn’t show up in the browser, so I can’t add it to the media pool, and the manual says to attach the extracted .wav to a session in Conform, but no advice on how to do that.