08-09-2017, 07:24 AM | #1 |
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Join Date: Aug 2017
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Ambisonic Camera Movement advice
Hey all,
l wonder if there's any ambisonic heads who could lend some advice to a n00b. I've begun work on my first ambisonics project which takes place mostly in just one room where there is a person in the middle and, unusually, the camera moves around her. I hope the attachment makes clear what I mean: In black, you see our star. In blue there are various sound emitters. In red, the path the camera travels. The camera arcs around the star, always pointed at her. We don't have that much time so I thought I'd try to automate the camera movement etc on the master bus, rather than each sound emitter. I'm using Facebook 360 and ATK bits. Oh and it's a VR project so the camera will turn with the viewers' head too. Anyone got any general advice on this? Or if you want a more specific question: how to I automate position where the focal point is not the camera? Hope this makes sense? Last edited by vincentoliver; 08-09-2017 at 08:14 AM. |
08-09-2017, 06:33 PM | #2 |
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Join Date: Mar 2010
Location: Adelaide, South Australia (originally from Geelong)
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I'd love to offer you some suggestions but my primary use for Ambisonics is 3D music mixing rather than VR. As such, I've never played around with VR tracking.
I do know Blue Ripple Sound have Ambisonic manipulators in their range. Their plugins are quite expensive but they are excellent. I use their upmixers, decoders and core plugins for all my Ambisonic mixing. Perhaps you could find a way to use the Blue Ripple manipulators to do what you want. Disclaimer - I don't work for Blue Ripple nor do I get paid commission for recommendations. I'm just a very happy customer.
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08-10-2017, 03:59 AM | #3 | |
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Quote:
Thanks again for your response. EDIT: actually, may I ask… where are 3D music mixes used? Is there a market for them right now? |
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08-11-2017, 01:59 PM | #4 | |
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Quote:
One of the big benefits to mixing in Ambisonic format is that downmixes to other formats such as 5.1, stereo, mono and even Dolby Atoms (more of a sidemix than downmix in this example) are simply a matter of using the appropriate decoder. I've found that even stereo mixes sound significantly better when derived from the Ambisonic mix than if I started in stereo to begin with. Same thing with 5.1. There's a much better image than using traditional panning techniques.
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08-15-2017, 12:24 PM | #5 |
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Wow! I'll definitely try this out. Thanks!
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08-15-2017, 04:21 PM | #6 | ||
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Join Date: May 2006
Location: Saskatoon, Canada
Posts: 2,113
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Quote:
Your problem highlights one of the difficulties with Ambisonics since it is generally scene based with a static listener. I'm going to post some JS plugin code here and I'm not entirely sure where it comes from. It might be mine or someone else's who is much smarter (more likely). I just can't remember. At any rate, it attempts to convert from the Reasurround Octophonic Box speaker layout to 2nd order FUMA Ambisonics. Perhaps if you play around with this you can achieve a suitable mix of Vector based object panning around the listener. Set up your sound objects as inputs in Reasurround, select them all, automate motion and rotation around the listener and then use the JS plugin to convert to 2o ambsionics and then to whichever delivery method you require. Quote:
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