Multichannel Audio in windows is here.....



  • I was had a project with 4 channel audio and 3760 x 1080 movies on OSX. I am transitioning a lot of stuff to windows and wanted to see if I could make multichannel audio work, especially as I was using AVI with the hap codec from rednerheads. I made an AVI with 5.1 audio from premiere and exported it and with a bit of tweaking (in the sound output settings of windows 10 choosing my fireface speakers output and configuring them as 5.1) it worked. I played the AVI with HAP in Isadora and low and behold my discreeet tracks were playing out 6 analogue hardware outputs of my fireface...

    The settings seem strange, not logical at first, and the HAP AVI movie took forever to render (I could not do it with media encoder, but only directly from premiere, but it seems mulitchannel audio playback is alive and well on windows with native playback.

    Or maybe eveyone already knew this.


  • Tech Staff

    Wow that sounds cool. Would love to know how the settings are in the Fireface. I have an Fireface 400.



  • @Fred

    This is really good news. Thanks for the report. Now we'll have to see if we can offer routing options like we have on the Mac.

    @DusX tagging you to ensure you'll see this.

    Best Wishes,
    Mark



  • @crystalhorizon In windows the outputs of the fireface appear as stereo pairs as separate devices. Output pair for 1-2 appears as Speaker output. When you click on this you can configure speakers as 5.1 or 7.1

    In general there is only stereo 5.1 or 7.1, so you need to have the correct number of channels, or ok you get no sound at all. I did only test with PCM audio, but according to the spec it should be able to decode ac3 encoded streams as well which is cool. This will only work with AVI files, but this will be the only option for Windows.

    @mark With the 5.1 or 7.1 limitations, i don't know how much the routing is needed as you always end up with discreet hardware outputs and routing can be solved by patching, and in my case through the software control of the fireface mixer.

    I don't have the gear but i am very curious to know if encoded dts streams will be sent to digital outputs to connect with home cinema style 5.1 systems, and if this can also be routed through the HDMI audio output. For small surround sound installations this would be great.

    Fred



  • This is great news! Thanks Fred!



  • Hi Fred,

    I made a post 3 years ago, wich describes the same procedure: You have to make a movie with 5.1 or 7.1 audio, and you have to use a hardware that Windows natively accepts as multichannel audio (unlike my Rolad OctaCapture, which Windws sees as 4 stereo pairs). I made my multichannel movies with Quicktime Pro.

    Here is the link to this post: https://community.troikatronix...

    Cheers, gunther



  • @gunther hey, i missed that post, i saw in your post you mentioned fireface, i am using a fireface for this, it also shows up as a lot of stereo outputs, but one is labelled fireface speakers and allows me to configure the speakers to stereo 5.1 or 7.1. I did this fast and am not near the hardware for a few days, but i was surprised you could do it with QuickTime, i was concentrating on the AVI spec and as playback is native on windows it would have to adhere to the spec. I guess under QuickTime it has to leverage the native playback system. There is definitely less control over the config compared to OSX, but it works well. Don't know if you still have hardware, but check if one pair of your outputs are labelled speakers and if so you can change the config to 5.1 etc.

    From there the fireface mixer- total mix let's you route anything anywhere.

    Fred


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