Hello to all, I have a question that I would like some arise on if I may ask?
First, let me please explain. I have spoken to Apple support, and have even done some profiles given to my by their developer team to find some answers. They / I have confirmed that the HomePod does indeed play at 16bit /44.1 kHz. (what they call Lossless) or at least there lower tier of Lossless.
In my test I have tired this;
Playing an album from Roon to my HomePod (as an Airplay) I get a “High Quality Signal Path”
which is showing me that Roon is downsampling to 16bit / 44.1kHz. I understand this, but as stated when I play a file that is 16bit /44.1kHz is still only shows as high quality, when surely it should be showing as Lossless.???
Thank you for your information. It is much appreciated. When I uploaded the pictures, they were in correct orientation. For what ever reason they are obviously not showing this now.
I agree, Airplay 1 only supports 44.1kHz, 16bit. Apple have shown and proved to me that the HomePods do indeed play this. They claim that the Homepod is functioning as it should. Its Roon that’s tell me that its not. So I guess what I am asking is, could there be an error in the showing of AudioAccessory1,1?
That would make sense to a point, however it showing the source file to be perfect. But still only shows High quality. 16bit, 44,1kHZ is Lossless quality, and if you where playing this on a Bluesound Plex for example it would show lossless. SO why is it not on the Airplay streaming to my HomePod?
Also just for an example.
I have the same album in AAC…
this is the signal path I get for that… and this does not make any sense…sinse when has AAC been 24bit?
Thank you for all your information, as always it is helpful. But the AAC is not 24 bit, it has been taken and converted from a CD rip, which is obviously 16bit. But it still does not make sense.
if the source is an ALAC 48kHz 24bit 2CH, and it converts 24bit to 16bit, and then the 48kHz to 16bit (as it shows in the picture) what it is stating is that that is there spec to make it play through airplay streaming. So why when I give it a 16Bit, 44.1kHz Source, does it not show Lossless, because that it was it is converting to play.?
AAC is lossy and has a nominal bit depth determined by the decoder. Either way, a lossy format and classed as low quality. Hopefully, this post will help your understanding.
Anything lossless over 44.1kHz 16bit is converted to meet the Airplay 1 limitation. Regardless, as explained before, and specifically in the post linked by @RBM, Roon considers Airplay high-quality since it is not possible to confirm that Airplay devices are indeed bit-perfect.