Recommendation for the dev team: If someone enables passthrough then enable it for all formats by default...it makes no sense I have to go into Expert mode and enable them manually despite the main passthrough being enabled already. 
Posts by randorando
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I have figured it out me dummy...I just realized now that there is an Expert Menu and all the advanced passthrough options were disabled.
Works fine now.
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I tried disabling pulseaudio as I read this may help but it did not.
I am unsure now if the passthrough is attempted or not.
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Hi,
I am on a GMKTEC G5. N100 CPU.
All works except audio passthrough. The mediacenter is directly connected to my Hisense AX5125H soundbar (which supports up to Dolby Atmos, DTS-HD etc), and itself is connected to Hisense U8N via eARC.
I always see that the soundbar only receives PCM despite DTS or DD+ Tracks.
Here is debug log when running a DTS example.
External Content pastebin.comContent embedded from external sources will not be displayed without your consent.Through the activation of external content, you agree that personal data may be transferred to third party platforms. We have provided more information on this in our privacy policy.The output HDMI Port seems to support the streaming options:
2024-10-16 10:32:00.095 T:920 info <general>: m_deviceName : hdmi:CARD=PCH,DEV=0
2024-10-16 10:32:00.095 T:920 info <general>: m_displayName : HDA Intel PCH
2024-10-16 10:32:00.095 T:920 info <general>: m_displayNameExtra: HEC HISENSE on HDMI #0
2024-10-16 10:32:00.095 T:920 info <general>: m_deviceType : AE_DEVTYPE_HDMI
2024-10-16 10:32:00.095 T:920 info <general>: m_channels : FL, FR, LFE, FC, BC, BL, BR, FLOC, FROC, BLOC, BROC, TFC, TC, TFL, TFR, UNKNOWN1
2024-10-16 10:32:00.095 T:920 info <general>: m_sampleRates : 32000,44100,48000,88200,96000,176400,192000
2024-10-16 10:32:00.095 T:920 info <general>: m_dataFormats : AE_FMT_RAW,AE_FMT_S32NE,AE_FMT_S16NE,AE_FMT_S16LE,AE_FMT_RAW
2024-10-16 10:32:00.095 T:920 info <general>: m_streamTypes : STREAM_TYPE_AC3,STREAM_TYPE_DTSHD,STREAM_TYPE_DTSHD_MA,STREAM_TYPE_DTSHD_CORE,STREAM_TYPE_DTS_1024,STREAM_TYPE_DTS_2048,STREAM_TYPE_DTS_512,STREAM_TYPE_EAC3,STREAM_TYPE_TRUEHDFrom my limited understanding it looks like its not being passed through but reencoded into PCM:
2024-10-16 10:31:49.309 T:1577 info <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder dca
2024-10-16 10:31:49.309 T:1577 info <general>: Creating audio thread
2024-10-16 10:31:49.924 T:921 debug <general>: CActiveAESink::OpenSink - ALSA Initialized:
2024-10-16 10:31:49.924 T:921 debug <general>: Output Device : HDA Intel PCH
2024-10-16 10:31:49.924 T:921 debug <general>: Sample Rate : 48000
2024-10-16 10:31:49.924 T:921 debug <general>: Sample Format : AE_FMT_S32NE
2024-10-16 10:31:49.924 T:921 debug <general>: Channel Count : 6
2024-10-16 10:31:49.924 T:921 debug <general>: Channel Layout: FL, FR, FC, LFE, SL, SR
2024-10-16 10:31:49.924 T:921 debug <general>: Frames : 2400
2024-10-16 10:31:49.924 T:921 debug <general>: Frame Size : 24I already read some other threads but couldnt come up with anything.
Thanks