Dolby Atmos ripping

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“Streamed Dolby Atmos is eac (5.1 Surround) and JOC (Joint Object coding) it's a hybrid file of channels and objects that decodes the 5.1 + joc to whatever your speakers are from 2.0 up to 9.1.6.

It's not a multitrack, although clearly what some mixers do is put all the vocal in the center channel, so effectively you have an a cappella in center and then the instrumental in everything else, but many labels forbid engineers doing it and have policies that they must mix other sounds into center, so people don't rip the a cappella.

[“apparently Logic Pro does it automatically as well” isling, src: ScrepTure]

YouTube only supports FOA Ambisonics as spatial audio, but you can encode Dolby Atmos to Ambisonics. [by e.g. https://www.mach1.tech/]

Apple Music has a larger amount [of Atmos songs] because Apple Pay the labels for exclusive Atmos deals.” ~Sam Hocking

Tidal only supports 5.1 or maybe 5.1.4, and Apple Music at least up to 7.1.4 (9.1.6 support could have been dropped since macOS Sonoma, not sure “On latest MacOS you do now have the ability to decode directly to 7.1.4 pcm realtime from Apple Music.”).

“I tried using channels from an Atmos mix to get better instrumentals and very surprisingly it sounds a lot worse

I rendered it into 7.1 and upmixed the channels into 3 separate stereo tracks, and processed each using unwa's v1e+

It ended up sounding more muddy than using a lossless stereo mix” - santilli_

“sometimes rendering into 9.1.6 is good for some instruments yet everyone says it’s really unnecessary

which is kinda true

like the 1-2 channel for 9.1.6 dolby is insanely clean on the songs i’ve tried but some other stems sound a bit ehh” - Isling

am-dl.pages.dev (it downloads Atmos from Apple Music using many donor accounts; allegedly downloading whole albums might start downloading lossy. By default it always downloads in lossy AAC (m4a). When you place “-alac” before your link to Apple Music, it downloads losslessly in ALAC [in m4a container]; the same goes to Atmos - just place “-atmos” before your link. E.g.:
-alac https://music.apple.com/lt/song/tone-deaf/1545457716

Be aware that it can stop for a minute or two on “Preparing”, but then it initializes normally).

Rippers
(for valid subscriptions)

- from Tidal (via ~~Tidal-Media-Downloader-PRO [Tidal-DL GUI]~~) - max 5.1.4

(doesn’t work anymore for Atmos; see further below)

Just get Tidal-dl with HiFi Plus subscription - now merged into one subscription (CLI version; for one user on our server it works for 13.10.22, but for some people strangely not).

For 30.04.24 with Tidal app installed on Windows and tidal-gui authorized by browser prompt/or automatically, Atmos files are not downloaded (checked all qualities in settings incl. 720/1080), at least on subscription automatically converted into higher plan due to recent changes (MQA files started to play since then, so it might be not subscription issue).

If having some problems, use tidal-dl (non-GUI) and tidal account with valid subscription and proper plan, set up to fire tv device api (option 5 iirc).

But I cannot guarantee it will work for Atmos.