Backend in advanced.conf was set to ALSA and chanced it to PulseAudio and that works.
But then no sound in dolphin so i setup asound.conf like you said in OP.
Then set rr autoconfigure audio to false still no sound.
Strange thing is when backend set to pulse audio and in dolphin the audio is set to pulse.
When i im dolphin change backend to ALSA sound is working.
But when i close dolphin the last audio backend setting in this case ALSA isn’t saved
It’s always back to pulse.
Well it should be obvious why it's always Pulse in Dolphin when you set PulseAudio in an overall configuration file. If you set the audio backend to PulseAudio and change it manually in Dolphin it will most likely just crash and if you use ALSA as backend and set it to Pulse in Dolphin there will be no sound.
Make sure your asound.conf is configured and use either PulseAudio or ALSA as backend but stop changing audio backends in the emulators.