On 2022-01-04 20:49, Dylan Marcus wrote:
Here is an example app we made when this was introduced:
https://github.com/Mach1Studios/M1-AirPodOSC
<https://github.com/Mach1Studios/M1-AirPodOSC>
This app just shows how to access the orientation and send it to any host via
OSC, feel free to use and fork however you like.
We also have some iOS examples of this being applied to spatial audio playback via
our SDK: https://github.com/Mach1Studios/Pod-Mach1SpatialAPI
<https://github.com/Mach1Studios/Pod-Mach1SpatialAPI>
You could even modify our “mach1-transcode-example” to playback FOA
(transcoding to our Mach1 Spatial vector channel based format and using
Mach1Decode to play it back).
https://github.com/Mach1Studios/Pod-Mach1SpatialAPI/tree/master/Examples/mach1-transcode-example/mach1-transcode-example
<https://github.com/Mach1Studios/Pod-Mach1SpatialAPI/tree/master/Examples/mach1-transcode-example/mach1-transcode-example>
——
When it comes to using the orientation from AirPods, we are happy with the
performance and access via the CMHeadphoneMotionManager, however this is
limited when distributing an app that uses it (read below). As it comes to how
the orientation is used in “Apple’s Spatial Audio” we are EXTREMELY unhappy,
you can read about that in detail here:
https://research.mach1.tech/posts/feedback-on-apple-spatial-audio/
<https://research.mach1.tech/posts/feedback-on-apple-spatial-audio/>
And
https://research.mach1.tech/posts/observations-and-limitations-of-apple-spatial-playback-implementation/
<https://research.mach1.tech/posts/observations-and-limitations-of-apple-spatial-playback-implementation/>
It should be noted that we have been doing tests of creating open source example
codebases to allow artists/labels distribute spatial music via an iOS app until
common music services support more spatial audio playback. We have been met with a
lot of pushback from Apple which we have been tracking here:
https://research.mach1.tech/posts/submitting-spatial-music-apps-to-ios-app-store/
<https://research.mach1.tech/posts/submitting-spatial-music-apps-to-ios-app-store/>
Hey Dylan, thanks a lot for your helpful answer here, as well as the
code contributions and nice documentation on your research blog.
BTW, it would be even nicer to have the publishing / update dates of the
individual posts made visible in the blog. :)
It's awesome to see the industry contribute to the community some
detailed development insights as well as your practical experience with
comparing the different currently available ways to achieve "spatial audio".
Keep up the fight for the customer ... apparently against Apple! ;)
Best,
/Hannes
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