Apple Atmos HDMI Passthrough in MacOS Sequoia | What Does it Mean?

In the latest Apple MacOS Sequoia developer beta, a new option to bitstream passthrough of Atmos audio over HDMI is available in the TV App and others. What does this mean? How does it work?
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0:00 Apple Bitstreaming Audio?!?
2:20 Pre MacOS Sequoia Behavior
5:13 MacOS Sequoia Update Behavior
7:41 Thoughts & Analysis
#hometheater #apple #macos

[@user-qj4um2wj6i]

thanks for the info from Australia.

[@JLRJ]

Thanks!🧑🏾‍🦲

[@Manco654]

I’m afraid you’re probably right… kudos on the fast video!

[@RussellDubov]

Hey, when I use my Apple TV with a Sonos arc I noticed my audio is much lower than my in built lg g3 app. Do you think Apple will upgrade their audio with the Apple TV in OS18?

[@marinoint]

Hope we can see it in action soon! I wonder how Atmos will sound on Apple.

[@mpitogo1978]

looking forward to to trying it out with sequioa. I use infuse on my AppleTVs to stream mkv backups of my disc LPCM with auromatic is OK but passthrough would be welcome

[@Techthusiasm]

This may not allow the Mac to bitstream lossless audio, but we'll see what else comes.

[@Nikita-P]

Thank you! I tried infuse with hopes to get bitstream for like Atmos or Trinnov demos I have on NAS…alas.

[@Techthusiasm]

Not supported.

[@Nikita-P]

@@Techthusiasm on day…keep the hope alive! Apple TV will eventually get into higher bit rates - Sony has Bravia Core

[@danielwander605]

I’m curious what happens when you go to the midi settings. Can you now go above 8 channels? While not a huge deal it would be cool to see REW now able to send signals to all your channels as opposed the 8 channels it’s limited to now.

[@pedromogga6928]

It won't work unfortunately. It can only send compressed audio ... exactly like the AppleTV.

[@JoshHare85]

Great video, I think only the MacBook Pro M2 onwards supports multichannel audio out of the hdmi output?

[@Techthusiasm]

This feature is all software but outputting in my case from a Mac with an HDMI port. I'm not sure how far back it applies or if it applies equally if using USBC to HDMI. I think it should.

[@JoshHare85]

@@Techthusiasm thanks for the info. Do you have any idea when Apple may stream lossless multichannel soundtracks through Apple TV other than the Infuse App from downloads ?

[@Techthusiasm]

No idea. This could a step towards it, or it honestly could still be never.

[@emiliofederici9459]

Hope this is ported down to TvOS where it's most needed. I love my AppleTV 4K but it's biggest downside is it being unable to passthrough any Dolby format to my AVR and doing all the decoding itself, sending the AVR just multichannel PCM.

[@D1Calderon]

You should try Apple Music Atmos to see if it’s lossless audio

[@Leo-tf7gu]

Wonder how much Dolby D+ to TrueHD difference is? Probably 5-10% noticeable.

[@Randy_Solares]

Great news nonetheless, I wonder if Infuse will play Atmos through Mac now?

[@Techthusiasm]

I'm sure Infuse will jump on whatever new capabilities exist. The question is if this feature will allow lossless TrueHD Atmos bitstreaming.

[@pedromogga6928]

@@Techthusiasm It doesn't.

[@pedromogga6928]

It will play compressed audio .... thats it.

[@bikdav]

I’m confused on one issue. I thought that QuickTime was gone.

[@matta9316]

Stay on this - would be a game changer

[@Techthusiasm]

For sure!

[@alanjkerr]

Interesting . Yet do not own a Mac - so hoping my Apple tv will get suitable upgrade.

[@Techthusiasm]

For what this added to the Mac, the Apple TV is already doing it in terms of DD+ lossy Atmos. So, we only need new ATV features if what they started leads to more.

[@alanjkerr]

New and useful be good . Like xcode off the apple tv or iPad.

[@pedromogga6928]

It's already on the AppletV ..... this is to bring the Macs with HDMI inline with AppleTV's.

[@chebrubin]

Bro why didn't you test MacOS Firecore Infuse with a Dolby TrueHD bitstream MKV rip from a Bluray Ultra HD ISO or remux? Who knows maybe DTS bitstream will output? Like The Ministry of Ungentlemanly Warfare 2024 2160p UHD BluRay REMUX HDR HEVC TrueHD 7 1 Atmos @ 70 gigs . If this just passes lossy Dolby Digital Plus Atmos it is a fail.

[@Techthusiasm]

I can give Infuse a run, but I assumed it won't do anything different until it gets some sort of update at least and given this just hit, it's too soon.

[@chebrubin]

@Techthusiasm thank you Louis Rossman is ok with "downloading' content you own for optimal playback. Imagine a M4 MacOs with enough GPUs from AAA gaming and loseless 7.1 audiophile playback from Apple Music Classic. Etc. Sony PS5 Pro won't be able to catch up.

[@jonathangorbutt6623]

@@Techthusiasmcan you test a TrueHD rip using quick time? According to reports quick time has the pass through setting?

[@Techthusiasm]

I'll try to get this in a follow-up video.

[@chebrubin]

@Techthusiasm Let Audio Advice know. I think they will want to help customers implement high end Mac Mini G4s and Apple TVs.

[@kenshinesca]

Why has passthrough taken this long. Would be great if truehd passthrough would work with the apple tv 4k devices.

[@Hamza-yu1ur]

The average person is using tv speakers, as sad as that is, and Apple caters to the masses. Infuse though has been a massive benefit to ATV users and respect lossless audio.

[@pedromogga6928]

@@Hamza-yu1ur Infuse cannot play anything other than the compressed audio format. FireCore (makers of Infuse) desperately want to support full fat audio and have even raised a petition with Apple to get it supported. Alas, Apple still does not ... even with this announcement.

[@Hamza-yu1ur]

@@pedromogga6928 not true. infuse supports lossless up to 7.1 LPCM from any DTS-HD or Dolby TrueHD track. It’s just the atmos and direct bitstream pass through that’s been missing.

[@Techthusiasm]

Hamza-yu1ur has an important point that a lot of folks don't understand. You can get lossless output with Infuse, yes. Just not Atmos or DTS:X. Decoding TrueHD and DTS-MA to PCM 7.1 is lossless output.

[@mpitogo1978]

lossy is probably because it is from a stream, lossless you will need an mkv backup from a disc

[@Techthusiasm]

Correct, they did not increase the quality of the audio. They just added the ability to pass what they have from a Mac.

[@kenwilcox5418]

It would be nice if they would bring 4k downloads with this update.

[@Techthusiasm]

It would be cool get to high fidelity downloads on the Mac, for sure.

[@tejathecrazyguy007]

This means we will be able to stream 4k movies via apple tv device?

[@Techthusiasm]

No, this has nothing to do with Apple TV. It's for better playing content directly off a Mac (for now).

[@tejathecrazyguy007]

@@Techthusiasm lol then no use i guess, still have to stick with shield

[@brunomachado7279]

Second one!

[@ThatHz-]

Here’s hoping the ATV and the Plex app get the same update

[@pedromogga6928]

They both already have it mate. This is simply to allow Macs with HDMI port to be able to send compressed audio out.

[@ThatHz-]

@@pedromogga6928 I never get Atmos to play through the Plex app on the ATV

[@PIPERBOYWILLIAMS]

How do I get I touch with you ? Have an anthem question before my return window is over

[@Techthusiasm]

Contact me through www.jaremypyle.com.

[@LockeNL]

Like every stream app they use lossy atmos. Try UHD Blu-ray rips…

[@Techthusiasm]

Or Kaleidescape!

[@ThatHz-]

Does it work with a USBC to HDMI adapter?

[@Techthusiasm]

Hmm, good question. I don't have one of those try out. I would think so though.

[@gerfitzcom]

Content coming soon?? Could that mean lossless content coming soon?

[@Techthusiasm]

It could, but seemingly not yet. Still, any movement in this space means they are thinking about movie audio as a feature and that's good!

[@bigbro8439]

Why are techcompanies almost always are so minimalistic in telling what an update beholds?

[@Techthusiasm]

For sure, I made the whole video talking about the need for details patch and upgrade notes.

[@EugeneMaynard]

👍🏾🙏🏾 🏴󠁧󠁢󠁥󠁮󠁧󠁿🇸🇪👍🏾