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Roughly Drafted: 5.1 audio on Apple TV

Ten Myths of the Apple TV: 5.1 Audio

Via my internet puppetmaster, Brian Hogg, comes another very good (and very long) piece from Daniel Eran on the Apple TV that runs down some of the details on 5.1 audio and attempts to clear up some ongoing confusion about what works, what doesn’t, and why.

So really, the Apple TV doesn’t need to decode 5.1 audio, it only needs to hand the surround audio stream to a receiver than can decode those formats. Can it do this…?

In addition to stereo cables, Apple TV also features a Toslink digital optical port. Since we can send raw digital audio data over the Apple TV’s optical output, can’t we send DTS digitally encoded 5.1 as well?

Of course we can. Download a DTS sample file in WAV format, drop it into iTunes, and Apple TV will happily sync it and play it. Unlike Pro Logic audio, it will sound like static over regular stereo speakers, but hooked up to a DTS receiver, it is decoded into 5.1 channels of sound and played back in real DTS 5.1 surround.

I don’t personally have a 5.1 setup so I have no way of verifying this, but I’m curious what you audiophiles are discovering — especially given that some of the Scott Bournes out there have cited lack of 5.1 audio as one reason for holding out on an TV purchase.

Any luck getting 5.1 working satisfactorily with your Apple TV? Is the lack of 5.1 content on iTS a dealbreaker for you?


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Nick's picture

The lack of 5.1 (or...

The lack of 5.1 (or better) on purchased movies/shows is one of the major deal breakers for me. Fortunately I have Minis on 3 of my TVs and they work amazingly well with VLC and optical out. But I am in the process of putting together a major upgrade for my parents who have finally decided to go HD. I was looking seriously at an AppleTV for them, but even my relitivly novice father said “whats the point if I the downloaded stuff doesnt do surround?”… I think he’s right. Whats frustrating is that it really shouldn’t require any extra hardware, just encode the media with 5.1 Apple! I’ve got a nice 30mbs FiOS pipe coming into my house, so the day they make HD content with surround sound available, I’ll be all over it, until then, its a bit like getting a porche with a honda engine.

Jon's picture

What's 5.1 good for anyway,...

What’s 5.1 good for anyway, other than for playback of my Dad’s awesome Michael McDonald DVD. “Takin’ It to the Streets” is da fashizzle. ?… Um… yo.

Kai Steinbach's picture

Just make sure the volume...

Just make sure the volume in iTunes or the QuickTime Player is set the 100%. If it is just one tick below, the Receicer will stay silent.

I don’t have a Apple TV here, but with the optical out of Mac mini or Mac book pro it is very similar. The receiver picks up normal iTunes music as “PCM 44.1 kHz”. When you play dts or DD5-7.1 content like the wav files that are linked above, it goes to multi channel beauty and you really really really hear the difference. There are some albums on amazon in SACD or 5.1 DVD-Audio, which sound great, too. I can only recommend it.

I didn’t know about all that when I bought the home cinema sound setup for movies from DVD. Hence now I enjoy it even more with music.

Mike's picture

I never thought about sending...

I never thought about sending it a raw dolby digital signal. I’ll try that out today.

Given that the device has an optical jack, I can’t imagine that it would be anything more than a firmware update to do Dolby Digital 5.1 but it may even be less than that.

Emory's picture

Okay so here's the deal. People...

Okay so here’s the deal.

People do want 5.1 audio. DTS or DD. There are even some great tracks in 7 channel DD and DTS that are incredible.

I am not especially interested in AppleTV but that’s mainly because I have a hacked Xbox running the freeware Xbox Media Center, which supports like a gazillion audio/video formats and photos as well. And it upconverts video into 1080i for me making everything look oh-so-sweet.

My only complaint is that the Xbox can’t playback HD, but in all seriousness, a software-modded Xbox and XBMC is still lightyears ahead of what you’ll pay 3-400$ for.

AppleTV is awesome for people that would also like to use an AirPort Express. I don’t want to drive my media from a computer, I want to have media on my computers end up in my livingroom.

BobVB's picture

yes, the lack of 5.1...

yes, the lack of 5.1 sound makes the apple TV a toy as far as I’m concerned and iTS not supporting it just confirms that.

When I’m sure it can actual play with sound capabilities the cheapest DVD players has then I’ll consider it.

Honza's picture

I'm with Emory. GOOOOOOOO XBMC!!! Seriously, I...

I’m with Emory.

GOOOOOOOO XBMC!!!

Seriously, I cannot think of ANY reason why I would want to replace it within the next 5 years. It just does everything I want, and lots lots more.

Brian's picture

I will try to test...

I will try to test this out this weekend. I heard Scott Bourne on the MacBreak podcast and I couldn’t understand what he was saying. He said something like “there is no connections for surround sound”. What? the optical digital out is the same toslink that is on most DVD players and has been for 10 years. It should be able to pass the signal with no problem. Interesting that Mr. Bourne has $100,000 speakers and doesn’t understand this…

Mike Shea's picture

Well my basement flooded so...

Well my basement flooded so I’m not trying anything this weekend except hooking up a wireless router next to two huge fans (at $25 a day).

Matt Poletiek's picture

Some say its all in...

Some say its all in the speakers. To me a TV isnt supposed to provide the audio support…. but thats just me.

About Merlin Mann

Merlin Mann's picture

Bio

Merlin Mann is an independent writer, speaker, and broadcaster. He’s best known for being the guy who started the website you’re reading right now. He lives in San Francisco, does lots of public speaking, and helps make cool things like You Look Nice Today. Also? He looks like this, answers questions, and has something like a life.

The best thing Merlin’s ever written is a short essay called, “Better.”

 
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