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+--- Thread: DTS-HD 7.1 only detected as 5.1 channels (/showthread.php?tid=137516)
RE: DTS-HD 7.1 only detected as 5.1 channels - dbldown768 - 2016-01-23
just out of curiosity, is there are reason to not use passthrough when your AVR can decode all HD formats?
RE: DTS-HD 7.1 only detected as 5.1 channels - VonMagnum - 2016-01-23
(2016-01-23, 15:52)dbldown768 Wrote: just out of curiosity, is there are reason to not use passthrough?
If you only have it connected to 2-channel audio (stereo), you would not want to use Passthrough as you'd only get noise. Not using passthrough lets Kodi decode things like Dolby Digital and DTS into 2-channel stereo for you so you'll still get sound with those formats. Similarly, if you only have Dolby Digital, you'd want to passthrough but not select DTS capable receiver so it turns DTS into Dolby Digital for you on the fly (think this only shows up on Advanced or Expert settings anyway now so you wouldn't get DTS by default either way).
DTS-HD 7.1 only detected as 5.1 channels - Memphiz - 2016-01-23
much more control to sync audio and video when kodi does the decoding...
RE: DTS-HD 7.1 only detected as 5.1 channels - FernetMenta - 2016-01-23
(2016-01-23, 15:59)VonMagnum Wrote:(2016-01-23, 15:52)dbldown768 Wrote: just out of curiosity, is there are reason to not use passthrough?
If you only have it connected to 2-channel audio (stereo), you would not want to use Passthrough as you'd only get noise. Not using passthrough lets Kodi decode things like Dolby Digital and DTS into 2-channel stereo for you so you'll still get sound with those formats. Similarly, if you only have Dolby Digital, you'd want to passthrough but not select DTS capable receiver so it turns DTS into Dolby Digital for you on the fly (think this only shows up on Advanced or Expert settings anyway now so you wouldn't get DTS by default either way).
I am sorry but this is maximum nonsense. 8 channel lossless codecs can perfectly decoded and transmitted as 8 channels PCM.
The question is: Is there any advantage of using passthrough
The answer: Maybe Dolby Atmos. For all other I would use PCM.
RE: DTS-HD 7.1 only detected as 5.1 channels - Tolriq - 2016-01-23
It seems that there's also the removal of Dynamic Range Compression and Dialog Normalization when doing PCM.
But I suppose new DSP addons can recreate the same things now ?
RE: DTS-HD 7.1 only detected as 5.1 channels - FernetMenta - 2016-01-23
(2016-01-23, 21:57)Tolriq Wrote: It seems that there's also the removal of Dynamic Range Compression and Dialog Normalization when doing PCM.
But I suppose new DSP addons can recreate the same things now ?
Kodi has DRC for a long time
RE: DTS-HD 7.1 only detected as 5.1 channels - Tolriq - 2016-01-23
I'm not audio / video expert but when not using passthough level of dialog is not the same and I need to change amplifier settings and I was told it's one of those
Is there a settings somewhere to avoid this ?
RE: DTS-HD 7.1 only detected as 5.1 channels - FernetMenta - 2016-01-23
Volume amplification is DRC http://kodi.wiki/view/Video_playback#OSD_audio_and_subtitle_settings
Quote:level of dialog is not the same and I need to change amplifier settings
Yes of course, because your AVR manipulates audio after decoding. Just like TVs do manipulate video. That's cheap tricks by consumer electronic industry to attract consumers with little effort.
The process of decoding an audio stream can't be done good or worse. That's nothing manufactures can distinguish from each other. Another fact is that they have to pay lots of royalties to the holders of patent of the codecs. That's a good portion of the entire price of such a device. People should better look at the analogue component of those devices than getting fooled by cheap software features.
RE: DTS-HD 7.1 only detected as 5.1 channels - Tolriq - 2016-01-23
Ok good to know, I don't know why but I was persuaded that each BR had some kind of value stored for those things that AVR then use to correctly apply gains to channels.
RE: DTS-HD 7.1 only detected as 5.1 channels - Hitcher - 2016-01-24
(2015-12-11, 19:12)VonMagnum Wrote: I just tested Kodi Jarvis Beta 3 and DTS-HD now correctly detects/displays as DTS-HD MA 7.1 when selecting the Audio in the Audio sub-menu while the movie is playing. That's great! However, the on-screen menu still says 5.1 so I'm assuming something wasn't changed and/or set right there relative to the newer ffmpeg library.
I also tested a couple of DTS-ES (6.1) movies (i.e. Gladiator and The Haunting). Here, the on-screen menu now correctly shows 6.1, but the audio sub-menu selection screen says "DTS 7 Channels" which is correct (6.1 IS 7 channels of information, after all), but it would be cool if they matched given 7.1 says "7.1" and not "8 channels" by comparison. The onscreen menu also shows a special logo for DTS Master Audio versus regular (or core) DTS. It would also be cool if it showed DTS-ES for 6.1 like the official movies show on the box (again just for continuity/consistency).
Other observations regarding file recognition and labeling detection and consistency:
- I've noticed WAV files show up with a "PCM Audio" logo but AIF/AIFF have no logo at all (FLAC, Apple Lossless, OGG, MP3, etc. all have logos)
- DTS Music is detected in WAV format, but it doesn't recognize it if it's AIF/AIFF (which is also uncompressed lossless and unlike WAV supports tagging) or Apple Lossless (compressed lossless) or even FLAC. It would be nice to be able to compress and tag DTS Music with Kodi.
Confirmed VideoPlayer.AudioChannels is not returning 8 channels when ListItem.AudioChannels clearly does.
RE: DTS-HD 7.1 only detected as 5.1 channels - Hitcher - 2016-01-24
Update: You need to enable "Support 8 channel DTS-HD audio decoding" to get it to work.
Thanks to fritsch for coming up with the answer -
Quote:option ticked, our ffmpeg with dcadec can decode 8 channels to pcm
unchecked: 6 channels as we only can decode the core 5.1
RE: DTS-HD 7.1 only detected as 5.1 channels - FernetMenta - 2016-01-24
Because of this kind of confusion I already dropped this setting for v17
RE: DTS-HD 7.1 only detected as 5.1 channels - crossrock - 2016-02-14
So I am thoroughly confused after reading thread. I have the Jarvis rc3 and this still seeing this issue. Meaning when playing a 7.1 file it shows 5.1 in my receiver display. I tried a few demo world videos too. Dolby true hd 7.1 plays fine. Only the dts hd 7.1 is having this issue. Any insight on the current status of things is appreciated as I couldn't update anywhere else. Thank you.
RE: DTS-HD 7.1 only detected as 5.1 channels - Hitcher - 2016-02-14
The answer is 2 posts above yours.
RE: DTS-HD 7.1 only detected as 5.1 channels - crossrock - 2016-02-21
(2016-02-14, 11:03)Hitcher Wrote: The answer is 2 posts above yours.thanks for your reply but actually i see the 8 channel option in my build disabled. jarvis rc3.