(2021-12-04, 19:23)jarosujo Wrote: It seems you are right. The only standards for PCM are 2.0, 5.1, or 7.1 channels. So no HD Dolby Atmos / DTS:X over PCM.

(2021-12-04, 20:53)gibxxi Wrote: Correct me if I'm wrong here, but I've always been under the impression that the 'number of channels' option has no effect on the passthrough portion of how Kodi handles audio, since the audio is being passed through unmodified in any way shape or form (including channel count).

(2021-12-04, 20:53)gibxxi Wrote: Also, setting 5.1/7.1 sound on non - digital sources (DTS, Dolby Digital, etc, etc.) will force Kodi to process / upmix to the set channel count specified, thus probably preventing the AVR from itself upmixing stereo content via standards like Dolby ProLogic and DTS: Neo, etc.

(2021-12-06, 15:34)jjd-uk Wrote: For LPCM Kodi will send the specified channel layout so yes you're right from that point of view, however Kodi will only fill the channels with audio depending on what's contained in the source, so for example if 7.1 is specified then AVR will show it receives 7.1 laypout but if the source contains stereo audio then Kodi will only 2.0 and the AVR should report as PCM. So you should only see Multichannel on your AVR if Kodi is sending anything more than 2.0.

However some of this is device dependant, as some devices can do strange things to LPCM such as mix up channels for Multichannel LPCM.

(2021-12-04, 19:23)jarosujo Wrote: It seems you are right. The only standards for PCM are 2.0, 5.1, or 7.1 channels. So no HD Dolby Atmos / DTS:X over PCM.

(2021-12-12, 14:11)black_eagle Wrote: Yeah, originally the code would get the No. of channels and then ask FFmpeg for a layout corresponding to that number.  So if you had FL, FC, FR it would ask for a 3 channel layout and FFmpeg would give it FL, FR, LFE because that's the first 3 channel layout in its list.  Obviously, that was wrong!

So now, it checks that the layout obtained includes at least the same channels as in the file.  That's before any platform dependant stuff.  So the code would refuse the FL, FR, LFE layout as there is no centre channel and get the next 3 channel layout, which is FL, FC, FR - correct!

Once we get to the platform dependant stuff, Kodi asks the audio driver for a matching layout.  If we get one, great.  If not, it asks for a layout that includes at least the channels we want.  This can mean that if we want FL, FC, FR but the audio driver doesn't support that, we could end up with a full 5.1 layout but Kodi will output silence on the extra channels.  The upshot of all this is that what you hear should always come out of the correct channels, but your AVR may well show a different channel layout to what you were expecting to see.  This is 100% down to the audio driver that is installed, and so will vary between platforms (and most likely motherboards too).

(2022-12-11, 12:59)reyataTom Wrote: I’m also having trouble with multichannel music. As you can see from this album:

https://www.nativedsd.com/product/aanyotl145-picturing-the-invisible-focus-1/?attribute_pa_channel=9-1ch-discrete&attribute_pa_quality=wav-384-khz-32-bit

It is encoded in 9.1ch Discrete DXD (WAV, 32bit 384 kHz).

I stored the album in NAS and played it through KODI on FireTV Cube Gen 3 and might want to try on Shield TV Pro. I have echo studio theater set-up with my FireTV and Marantz AVR to the Shield TV. While I first tried to play the album by VLC/Audirvana from my Macbook, I have tried multichannel in/ multichannel stereo/ Auro-3D on my AVR and monitor the amplifier output from marantz app on my iPad. Of course, due to the limitation of DAC on the AVR, 24/192 on each channel will be best expected. The listening experience actually isn’t exceptionally better than the 24/96 encoding on Auro-3D.

From mac to AVR, ceiling speakers are not playing by multi-channel in.

How can Kodi handle 9.1 discrete file? Would like to know.

cheers