There are a few mistakes in your posting. For one, standard DTS and DD are not lossless formats. This is relevant because Plex will have to transcode any format that isn't supported by the Apple TV Plex client to DD. This includes formats like Dolby TrueHD, DTS-HD, or FLAC. So in those cases you will lose quality due to the DD transcoding, while Infuse can play them losslessly. There are also a number of scenarios where Direct Play doesn't work on the video side (e.g. if the video is VC-1 encoded or has subtitles in a non-text format), in which case the image quality will be impacted.
Thanks Rigby,
my focus here is on the sound.
you are right DTS and DD are lossy, DTS-HD is lossless / lossy. This means that when they are decompressed they do not reproduce the original exactly. DTS / DD, DTS-HD are simply audio compression codecs, used to reduce the size of the audio data for convenience while minimizing impact of the sound quality when they are played back.
!! I guess the point here is that this will be be the case wherever audio compressed streams are being decoded , being in the Apple TV or in the receiver. A receiver may add some post-processing steps, but these are applied to the uncompressed audio , not the compressed data. the data must be uncompressed first.
Decompressing DTS/DD to LPCM and transferring that to the receiver is a digital and lossless process because the uncompressed and digital LPCM handles bit rates up to 27.648Mbps, whereas DTS-HD MA handles 24.5 Mbps, DTS is a mere 1.5Mbps, DD is probably less, in other words, there is no loss when transferring decoded data as LPCM to the receiver through a digital connection such as HDMI, or optical cable.
Plex Direct Play is great, and I have only very few issues with it, 300+ movies played with Plex in direct play, most 1080p + multi-channel audio in a variety of common compression codec, and only a couple fail to playback correctly.
So the highly non-quantifiable statement of yours :
"There are also a number of scenarios where Direct Play doesn't work on the video side " turns into a mere 0.5% in my case, and probably for most PLEX users because I am no expert and probably do what everyone else does.
Also as I mention earlier, I can get the DTS decoding to happen on my receiver when using Samsung smart tv embedded Plex player. there is really nothing nice to talk about this software here , apart to note that that it can pass through DTS to my receiver, and that apart from the DTS led being on, it does not make a difference in sound quality compare to the same movie play back in PLEX/ATV sending LPCM across.
For the picture:
Also generally speaking with my limited experience in video player, (you can correct me there being an expert).
I have found PLEX to have the best picture quality all around. I cannot compare with infuse here , because firecore put me off too quickly, I went to download the 'free' version, set it up to access my movie library using DLNA, loaded the library, and when I went to play a title, Infuse prompted me with a screen asking me to join some sort of a trial with a $ amount associated with it, and that was the end of that. If they want me to buy their software they should do this when I download it not after. for this reason I don't think they do any better than plex on ATV. otherwise they would let you try with no prompt for credit card, knowing people would buy their software cause it is so much better, I think they simply rely on people who forget to cancel the trial. I don;t want to be one of those, I just want to try before I buy.
Finally, you said ' a few mistakes' without quantifying it, or actually taking time to list any apart that DTS /DD are lossy. which amounts to a total of one (mostly irrelevant to the discussion), not a few. So R u exaggerating facts, because you are upset when people challenge your expertise?
I have tried to explain things best i can here, and as you now know I am no expert, so You can go ahead and tell me all that is wrong with this a few or more, whatever. Just don't forget to provide substance thx.
ah and also read yourself again, I think you made a bias:
"This is relevant because Plex will have to transcode any format that isn't supported by the Apple TV Plex client to DD. This includes formats like Dolby TrueHD, DTS-HD, or FLAC. So in those cases you will lose quality due to the DD transcoding, while Infuse can play them losslessly"
You forgot to say that this is the case only when ATV has audio output set to DD. if you use the best quality option, then you'll get uncompressed LPCM not DD, and there is no Transcoding involved in that case whatsoever. (assuming a video player that supports all these formats).
Also Infuse does not play losslessly anything if apple tv is set to output audio using DD codecs, only when apple TV is set to best quality will infuse send send lossless LPCM data to the receiver, just like Plex does .
Have a nice day