[ProAudio] Mastering and monitoring for spatial audio

David Josephson dlj at josephson.com
Thu Apr 15 23:22:01 PDT 2021

Thanks, Thor. It’s not the surround authoring, realizing the 5.1 stems for instance is already done. Apple spatial audio is not very well documented (surprise!) but the intent seems to be that 5.1, 7.1 or Atmos content would be rendered binaurally, anchored to the relationship between the playback device and the wearer’s ears. As you move your head, the sound remains centered on the device, by using dynamic head tracking of the Airpods Pro. 

Apparently, this is only possible when playing back through an app set up for Apple spatial audio, such as Apple TV. Tidal supports Dolby Atmos file playback also. I’m looking for a work path that will bypass the home cinema production cycle and the streaming services. In the list of compatible programs, the Mac OS file browser FE File Explorer Pro apparently plays Atmos files through spatial audio but I haven’t gotten it to work yet.

Will continue to look around, any leads appreciated…


> On Apr 15, 2021, at 5:20 PM, Sonovo <post at sonovo.no> wrote:
> Hi David,
> I do not, I’m sorry to say. I wasn’t even aware Apple had their own system, but it doesn’t surprise me.
> I’ve worked extensively with the Smyth Realiser, Sony 360 Reality Audio, as well as Fraunhofer MPEG-H and Dolby Atmos. I don’t know of any of those skills are transferable, but I’m happy to help if I’m able to, and interested to learn more about a system I’d not heard of before.
> You could also potentially check with two of my colleagues, Darcy Proper and Michael Romanowski, who both are also experienced in a number of surround and immersive formats. Darcy and I recently published a chapter in a book about mastering for surround and immersive.
> Best regards,
> Thor Legvold
> --
> Sonovo A/S
> Stereo + Surround Mastering & Production
> Stavanger, Norway + Los Angeles, California
> http://www.sonovo.no <http://www.sonovo.no/>
> Tel:+47 900 55 868
> Tel:+1 (310) 907-6885
>> On 15 Apr 2021, at 16:53, David Josephson via ProAudio <proaudio at bach.pgm.com <mailto:proaudio at bach.pgm.com>> wrote:
>> Do any of you have current experience managing a workflow from e.g. a 5.1 surround recording to reproduction with head tracking in Apple spatial audio? I have a client who would like to record and play back ambient soundscapes where listenera can move their head within the soundscape, at least in rotation.
>> Thanks
>> David Josephson
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