Arch Linux

kaushikgn

Member

Registered: 2020-04-12

Posts: 52

(solved) SPDIF passthrough raw endecoded digital audio

Hi
I have an onboard spdif audio out.I connect it to my receiver using an optical cable/Using cinnamon with arch lts 5.4.35-1-lts. The option i get for sound profile output is Digital stereo IEC958.All i want is the spdif out to pass undecoded audio to the receiver.When it does that depending on the stream the DTS or Dolby would go on and it will do the decoding.But there seems no way to do it.The receiver always get PCM .Is there any way to do it or is it just cinnamon?I have alsa installed and im forcing vlc to use spdif pass.So vlc would be alright.
Tried this with the latest kernel 5.6.7 . Nothing seems to work.
Pls help me.I dont care if i have to move away from connamon.Audio is more important to me than display.Thanks in advance.

The outpu of aPlay -L is. The spdif is listed in the end.

surround21
    2.1 Surround output to Front and Subwoofer speakers
surround40
    4.0 Surround output to Front and Rear speakers
surround41
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50
    5.0 Surround output to Front, Center and Rear speakers
surround51
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
null
    Discard all samples (playback) or generate zero samples (capture)
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pulse
    PulseAudio Sound Server
speex
    Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
    Plugin for channel upmix (4,6,8)
vdownmix
    Plugin for channel downmix (stereo) with a simple spacialization
default
    Default ALSA Output (currently PulseAudio Sound Server)
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, HDMI 0
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
usbstream:CARD=NVidia
    HDA NVidia
    USB Stream Output
sysdefault:CARD=Generic
    HD-Audio Generic, ALC1220 Analog
    Default Audio Device
front:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    Front speakers
surround21:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=Generic,DEV=0
    HD-Audio Generic, ALC1220 Digital
    IEC958 (S/PDIF) Digital Audio Output
usbstream:CARD=Generic
    HD-Audio Generic
    USB Stream Output

Last edited by kaushikgn (2020-04-30 18:04:35)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,364

Re: (solved) SPDIF passthrough raw endecoded digital audio

Please wrap that in [ code ] [ /code ] tags.

You can enable formats that should be passed through unencoded in pavucontrol and ticking the relevant boxes under the advanced heading for the digital sink.

See this post and thread for some further information on how to configure this: https://bbs.archlinux.org/viewtopic.php … 1#p1886141

Last edited by V1del (2020-04-30 15:46:25)

kaushikgn

Member

Registered: 2020-04-12

Posts: 52

Re: (solved) SPDIF passthrough raw endecoded digital audio

Please wrap that in [ code ] [ /code ] tags.

You can enable formats that should be passed through unencoded in pavucontrol and ticking the relevant boxes under the advanced heading for the digital sink.

See this post and thread for some further information on how to configure this: https://bbs.archlinux.org/viewtopic.php … 1#p1886141

Thank you. Pavucontrol did the trick. Can't thank you enough