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Post by AudioHTIT on Jul 9, 2020 8:16:48 GMT -5
... BTW what does everyone here think about HD audio for movies? I use Netflix for movies and it has DD 5.1. I thought I saw something about ATMOS. Is ATMOS soundtrack backwards compatible or is it a whole new sound format in addition to the extra channels? I should spend some time to read about it. I haven't looked at it much since I'm not interested in the extra channels. The term HD Audio is normally used to mean the higher bitrates in music files you get from places like HDTracks, 24/96 and the like. That said, I upgraded my Netflix subscription to the 4K option mostly to get the improved Atmos soundtrack which I find to make a greater improvement than 4K (which is a little better). But unless you have the extra channels and speakers for Atmos, you’ll still get 5.1 or 7.1 (so yes, it is backwards compatible). Before I got ceiling speakers I did find that some Atmos or DTS:X disks sounded better in Surround (7.1 for me), probably because they remastered the base layers when they added Atmos.
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Post by synmag on Jul 9, 2020 12:46:41 GMT -5
The Denon is a DVD-2910. It was a high end unit in it's day that I picked up for a song after bluray came out and everyone was selling their DVD players. It has a burr-brown (SP?) DAC which sounds great with DVD-a and SACD. It might be interesting to compare it with the DAC in the Rotel if I am able to send LPCM from it over HDMI. Found a post that said the 2910 cant decode multichannel dsd to lpcm unfortunately but it will convert stereo dsd so you can compare that .With the rotel you can still get a sub with built in auto peq [ which will help the important bass frequencies]. I run a velodyne sp1200 ultra to do this ; svs are another brand. Atmos is a whole new format using object sound rather than specific channels. It can be carried as metadata piggybacked on lossy dolby digital plus[streamed on netflix etc] or with lossless on bluray and uhd bluray. The sound quality of lossy codecs can be tied to the mbps rate to a certain extent . DD on a dvd used to be 448kbps but when bluray came out the kbps went up to 640 for dd ;and for dts it went up to 1.5mbps which can be hard to pick from lossless DD+ goes up to 1.7mbps I need to check the player on how to send the stereo LPCM unless it's automatic with an HDMI connection. I'm sure there is a setting somewhere. I need to research HD audio and how to play it through my system. I trialed Tidal MQA on my LG phone with quad dac and a good headphone. It sounded amazing. I want to test and compare various HD audio formats. I haven't looked recently if anyone is still selling SACDs but I do have a few favorites I want to keep listening to (DSOTM dvd-a bootleg, Brothers in arms, Frankie goes to Hollywood). I came across a project that allows "backing up" SACDs to disk that can be streamed. BTW I didn't realize that dvd-a will play through HDMI 1.1 It's only SACD that needs 1.2. Yes, I have played some movies which must have had high bit rate for both video and audio which sounded amazing on my system. Dark Night and Need for Speed come to mind.
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Post by synmag on Jul 9, 2020 13:05:29 GMT -5
... BTW what does everyone here think about HD audio for movies? I use Netflix for movies and it has DD 5.1. I thought I saw something about ATMOS. Is ATMOS soundtrack backwards compatible or is it a whole new sound format in addition to the extra channels? I should spend some time to read about it. I haven't looked at it much since I'm not interested in the extra channels. The term HD Audio is normally used to mean the higher bitrates in music files you get from places like HDTracks, 24/96 and the like. That said, I upgraded my Netflix subscription to the 4K option mostly to get the improved Atmos soundtrack which I find to make a greater improvement than 4K (which is a little better). But unless you have the extra channels and speakers for Atmos, you’ll still get 5.1 or 7.1 (so yes, it is backwards compatible). Before I got ceiling speakers I did find that some Atmos or DTS:X disks sounded better in Surround (7.1 for me), probably because they remastered the base layers when they added Atmos. I was referring to Dolby TrueHD/DTS master but I do want to look at strictly audio also as I mentioned above. I noticed that programming shot on 4k cameras looked exceptional on my old 48" HD tv. Call me crazy but I think it looked better than HD up converted on my 4k tv. It's great that Atmos is backwards compatible I just wonder how well the DD 5.1 processor can reproduce the intended audio. What about Dolby TrueHD/DTS master? I can see down the road where engineers might focus on Atmos necessitating an upgrade and making Dolby TrueHD/DTS master obsolete. I'm curious how much longer bluray discs will be available as everyone moves to streaming. Will it stick around as a niche like laserdisc?
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