Streaming audio through the Ethernet?

Any thoughts about streaming audio through the Ethernet port in the Extreme? Is this possible?

I figure the answer will be no, but I have to ask. Could I convince someone in the know to see if they can figure it out if possible at all? Additionally Apple have had the tendency to test drive features unofficially, which can be turned on if one knows what to do. Slight chance that the device has the hardware needed for the audio feed (minus the port) which would be switched off? Or they be testing the idea of using the Ethernet for audio feed? I know the odds are slim, but I'm not convinced it can't be done, don't tell me it can't, unless you have the appropriate background to know that it isn't. Sorry if that sounds harsh, Thanks.

WHAT I'VE DONE SO FAR:
I've been looking all over the place and only found reference to some hardware which if I was to buy I'd just get a second Express (seems ridiculous), oh and excessive amounts of reviews on the Express. So no is probably the answer but I have to ask.

OUR SCENARIO:
Our stereo and Extreme (802.11n) are quite close to each other. The Extreme wirelessly backs up two laptops and controls the ADSL (if we can call it that, it's pretty crusty service we have) and soon will have a Skype handset attached too. Works beautifully I might add, good going Apple. We use an older Express to stream to the stereo. Seems a waste. To add to this we constantly interrupt the music my unplugging it to use the printer in the other room. No there is no room near the stereo or extreme to put the printer. I'd love to leave the express in the other room to be turned on when needed. Coincidently. If my MBP is streaming to the express and someone switches it off, iTunes locks up indefinitely. Might seem surprising but it amazes me how often people forget to mention this to me so I can switch it over to computer before they turn it off. Something about Apples way that causes out of sight out of mindedness...

ADDITIONAL DRIBBLE:
Alternatively I find an old second hand one, but still just seems wrong on principal. If the printer had a Wi-Fi card in it, and the Stereo had a Wi-Fi card in it all this would be so much simpler. And don't get me started on the car. I'd like to update the car Media HD while it's parked in the garage without plugging anything into it. Mind you unless it could remain on standby one would still have to go turn the key. Mind you I could just put in a iPod touch cradle.

Macbook Pro C2D 17", Mac OS X (10.5), AirPort Extreme (802.11n)

Posted on Jul 31, 2008 8:18 PM

Reply
5 replies

Jul 31, 2008 9:22 PM in response to osihara

Any thoughts about streaming audio through the Ethernet port in the Extreme? Is this possible?


iTunes uses AirTunes, based on Apple's Remote Audio Output Protocol (RAOP), to stream audio. AirTunes can actually operate completely over Ethernet, as well as you would expect--wirelessly. The key is that iTunes requires an AirPort Express Base Station (AX) as the target for this stream.

So, using your example, you can stream audio over Ethernet.

iTunes Host > (Ethernet cable) > \[LAN port] AirPort Extreme \[LAN port] > (Ethernet cable) > AX

Aug 1, 2008 12:03 AM in response to Tesserax

iTunes Host > (Ethernet cable) > [LAN port] AirPort Extreme [LAN port] > (Ethernet cable) > AX


I think I follow, but what is AX? Does this amount to an Ethernet RJ45 plug to a 3.5 mm Stereo Plug?

Connect Mac/PC running iTunes to the Extreme via Ethernet directly (or wirelessly) then connect Extreme to Stereo directly via said cable?

ADDED>>> Sorry miss read your post. AX being the Express? This kind of defeats the purpose doesn't it? Or did I miss-understand again?

Maybe I should clarify a little. The desired set-up is. Laptops wirelessly connect to network via Extreme. Which runs the ADSL, TM and Skype handset. Then have the Audio wirelessly streamed from iTunes on one of the laptops to the Extreme and then outputted form there to the stereo via a cable as described above in this post. And the Express in the other room connected to the printer.

Effectively giving the Extreme the Express AirTunes capability. Although this might be hardware restricted, I find it hard to believe Apple have not provided the Extreme with the capability to do so even if they didn't provide a 3.5 mm stereo port. Would it be conceivably possible to modify the firmware or something to take advantage of such a situation, should it be available.

Message was edited by: osihara

Aug 1, 2008 11:45 AM in response to osihara

Then have the Audio wirelessly streamed from iTunes on one of the laptops to the Extreme and then outputted form there to the stereo via a cable as described above in this post.


... and therein lies the problem. You need a device which can "decode" the AirTunes stream, regardless if that stream is going over wire or wirelessly. That's where the AX come in. Its built-in audio circuitry "converts" AirTunes to both analog/digital line-out audio. It's this converted audio that would provide input to either powered-speakers or an audio receiver. I'm not aware of any device that you can plug into an Ethernet port, of any router, that works like the AX.

Aug 2, 2008 3:41 AM in response to Tesserax

Ok, Kinda thought that myself. Winder if Apple have put this into their existing hardware for testing purposes as has been evident in some part products. No port of course but might the decoding hardware be present and switched off?

By testing I mean trial or indecision about making the feature available to general public. thus making it available to prototypes which have it turned on and a 3.5mm plug connected.

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Streaming audio through the Ethernet?

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