Does anyone know if the new Apple TV supports streaming of 192/24 files, specifically that it outputs at those values or does it still downgrade to 44.1/16 bit?
Just for clarification, the AppleTV (2 & 3) does not send out a 44.1 signal. Everything is sent out as 48khz. The Airport Express sends out only 44.1.Does anyone know if the new Apple TV supports streaming of 192/24 files, specifically that it outputs at those values or does it still downgrade to 44.1/16 bit?
That may be what's happening on it's back ports. But AFAIK what is flown over the air, is still 44.1/16. Check this page for example:Just for clarification, the AppleTV (2 & 3) does not send out a 44.1 signal. Everything is sent out as 48khz. The Airport Express sends out only 44.1.
Yes, I was responding to his statement about the OUTPUT of the AppleTV as it related to the 2nd and 3rd gen models. I was not referring to Airplay's capabilities, which is a different subject, because the AppleTV can also get its music files via Home Sharing or via iTunes Match. If you have 24/96 files or 16/44.1 in your iTunes library, they will be resampled to 48khz. Airplay, which is 44.1 will also be resampled to 48khz with the AppleTV (2 and 3).That may be what's happening on it's back ports. But AFAIK what is flown over the air, is still 44.1/16.
OK, agreed. But to the OP's question - these conversions make 192/24 playback from aTV a nonsense, because the stream may be resampled along the way several times, and none of the intermediaries maintains the original bandwidth.To be clear, I was saying that everything on the AppleTV 2 and 3 is output at 48khz (not 44.1).
Apple really needs to catch up to the rest of the world as regards hi-rez sound.
It is simply befuddling to me why they won't put a full size USB connection. I presume this is a remnant of the Jobs days of us 'not knowing' what we need/want. It was wrong then and it's wrong now.
And that fact alone -- along with having to purchase another device (that's almost as expensive as the ATV) in order
to push sound to my outboard dac -- will probably keep me from purchasing.
Not necessarily. Home Sharing will send high resolution files in their original format, at least to 96khz, which I have tested ( don't know about 24/192). While AirPlay is currently 44.1, there is nothing saying that they can't improve on that technology. DLNA, for example, can handle higher resolution streams.OK, agreed. But to the OP's question - these conversions make 192/24 playback from aTV a nonsense, because the stream may be resampled along the way several times, and none of the intermediaries maintains the original bandwidth.
The first, and main, reason is that they might want high resolution audio from movie soundtracks. Specs for Dolby Digital True HD, for example, goes up to 24/196.Why/how would aTV come into the picture for high-rez streaming? Wouldn't anyone caring about such audio files already have a more-capable preamp/receiver that could simply receive via network? Are we plugging in the puck just to have an Apple Device in the mix? Mine has built-in networking, Airplay, and I just run an HDMI direct from the Mini, anyway.
In which scenario does Home Sharing send files in HR?? Or are you speaking about movies??Not necessarily. Home Sharing will send high resolution files in their original format, at least to 96khz, which I have tested ( don't know about 24/192). While AirPlay is currently 44.1...
No, I am talking about music:In which scenario does Home Sharing send files in HR?? Or are you speaking about movies??
IMHO whenever you play music from your iTunes library on appleTV, you are using AirPlay (even over a cable). So I don't get your point here.
But sure, I have created some of quadraphonic audio files myself as M4V movies just to play them back on 4-channels. Still, I have to use AC3, which by definition maxes out at 640kBps, which is the total bitrate for all 6 channels.
Interesting! I will check on this.No, I am talking about music:
http://www.innerfidelity.com/content/audiophile-play-ipad#s9t6lpXfO6HgGPyM.97
That part is clear. But nowhere does it say that audio stream is transported differently when using Home Sharing. I have so far understood, that HS is mostly about authentication. Thus, I presumed the transport is still the same old RAOP.
Per wiki:But nowhere does it say that audio stream is transported differently when using Home Sharing. I have so far understood, that HS is mostly about authentication. Thus, I presumed the transport is still the same old RAOP.
Thanks man, that was edutainment!Per wiki:
The AirTunes part of the AirPlay protocol stack uses UDP for streaming audio and is based on the RTSP network control protocol.[8] The streams are transcoded using the Apple Lossless codec with 44100 Hz and 2 channels encrypted with AES, requiring the receiver to have access to the appropriate private key to decrypt the streams.[9]
As per the above, I think the main difference, as it (currently) applies to Airplay for music, is that it currently transcodes all streams to 16/44.1. Home Sharing does not transcode to a different bitrate. In other words, if I have a 24/96 file in iTunes and Airplay it, the file is automatically transcoded on the fly to 16/44.1. With Home Sharing, on iOS, the file will play in its native bitrate. I believe it works more like "sharing" when you access a file on a NAS from a laptop. It is simply sharing access to the file rather than sending it through its Airplay protocol.
I believe the AppleTV (2 and 3) will play them, but it transcodes everything to 48khz.Thanks man, that was edutainment!
The referred pages are all about using iPad as the playback device for HR-audio. But does aTV play them as well? .
OK, I will have to test how mine behaves.I believe the AppleTV (2 and 3) will play them, but it transcodes everything to 48khz.
No, I am talking about music:
http://www.innerfidelity.com/content/audiophile-play-ipad#s9t6lpXfO6HgGPyM.97
Home Sharing is not the same thing as AirPlay:
https://support.apple.com/en-us/HT202190
Currently, the AppleTV is converting everything to 48khz. However, Home Sharing is, or was ( haven't tested it * since iOS 9 was released), compatible with high resolution files a camera connection kit and a compatible DAC on iOS.
*Edit: Went ahead and tested it with my iPhone and it still works ( at least to 96khz, which is what my Dragofly DAC supports).
Does anyone know if the new Apple TV supports streaming of 192/24 files...
Does anyone know if the new Apple TV supports streaming of 192/24 files, specifically that it outputs at those values or does it still downgrade to 44.1/16 bit?