Did a final try and got it working. Played around with the sound settings in Kodi, resetting them to default, and suddenly Soundseeder started working. Can’t really see which setting made the trick.

2 years ago, I got Soundseeder working on my Pi. I don’t remember exactly how, but I think I managed to install Oracle Java.

Recently, the power went whilst installing updates on the Pi and I had to start from a fresh install. I recalled I had some trouble with Soundseeder last time, but didn’t remember this thread … 😉

I actually think I got Soundseeder working with the default-jdk available to OSMC a little, little while. Very weird, and I can’t really try and replicate it so nevermind.

I installed Oracle Java:

osmc@Vardagsrum:~$ java -version
java version "1.8.0_311"
Java(TM) SE Runtime Environment (build 1.8.0_311-b11)
Java HotSpot(TM) Client VM (build 25.311-b11, mixed mode)

Now the speaker shows up as connected on my phone, but there’s no sound.

Tried running in debug mode:

osmc@Vardagsrum:~$ java -jar /home/osmc/soundseeder_v0.6.1b/soundseederspeaker.jar -d
2021-10-24 09:15:49,993 INFO  SoundSeeder Speaker
2021-10-24 09:15:50,001 INFO  Version 0.6.1 beta - built190517
2021-10-24 09:15:50,002 INFO  Copyright 2017 JekApps - www.soundseeder.com

2021-10-24 09:15:50,002 INFO  Debugging: on
2021-10-24 09:15:50,007 DEBUG Availabe Network Interfaces:
2021-10-24 09:15:50,040 DEBUG Interface: wlan0 IP: 192.168.1.8
2021-10-24 09:15:50,041 DEBUG Binding to 192.168.1.8
2021-10-24 09:15:50,042 DEBUG Device UUID: SE55965980
2021-10-24 09:15:50,042 INFO  Available audio devices:
2021-10-24 09:15:50,050 INFO  Using default audio device: vc4hdmi [plughw:0,0]
2021-10-24 09:15:50,064 INFO  Network connected: 192.168.1.8
2021-10-24 09:15:50,065 DEBUG initPlayerService...
2021-10-24 09:15:50,071 DEBUG HelloListener launched
2021-10-24 09:15:50,174 DEBUG PlayerConnectionReceiver launched
2021-10-24 09:15:50,180 DEBUG Sending multicast hello msg
2021-10-24 09:15:50,296 DEBUG 192.168.1.7 is Badrum
2021-10-24 09:15:50,335 INFO  Badrum connected
2021-10-24 09:15:50,356 INFO  Play
2021-10-24 09:15:50,700 INFO  Badrum audio stream connected
2021-10-24 09:15:50,708 DEBUG 192.168.1.7 is Badrum
2021-10-24 09:15:50,891 INFO  Stop
2021-10-24 09:15:51,180 DEBUG Sending multicast hello msg
2021-10-24 09:15:51,502 DEBUG 192.168.1.7 is Badrum
2021-10-24 09:15:51,836 INFO  Play
2021-10-24 09:16:05,722 DEBUG Connection timed out: 192.168.1.7
2021-10-24 09:16:05,722 INFO  Badrum audio stream disconnected
2021-10-24 09:16:05,724 INFO  Stop
2021-10-24 09:16:20,200 DEBUG Sending multicast hello msg
2021-10-24 09:16:20,619 DEBUG 192.168.1.7 is Badrum
2021-10-24 09:16:20,992 INFO  Play
2021-10-24 09:16:21,305 INFO  Badrum audio stream connected
2021-10-24 09:16:21,518 INFO  Stop
2021-10-24 09:16:23,435 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:23,464 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:23,764 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:24,111 DEBUG 192.168.1.4 is Retro
2021-10-24 09:16:24,114 INFO  Badrum disconnected
2021-10-24 09:16:24,115 INFO  Badrum audio stream disconnected
2021-10-24 09:16:24,115 INFO  Retro connected
2021-10-24 09:16:24,120 INFO  Play
2021-10-24 09:16:24,424 INFO  Retro audio stream connected
2021-10-24 09:16:24,702 DEBUG 192.168.1.4 is Retro
2021-10-24 09:16:25,372 INFO  Stop
2021-10-24 09:16:25,440 INFO  Play
2021-10-24 09:16:39,431 DEBUG Connection timed out: 192.168.1.4
2021-10-24 09:16:39,431 INFO  Retro audio stream disconnected
2021-10-24 09:16:39,432 INFO  Stop
2021-10-24 09:16:43,194 INFO  Play
2021-10-24 09:16:43,195 INFO  Stop
2021-10-24 09:16:43,529 INFO  Retro audio stream connected
2021-10-24 09:16:43,685 INFO  Play
2021-10-24 09:16:43,686 INFO  Stop
2021-10-24 09:16:43,692 INFO  Play
2021-10-24 09:16:43,960 INFO  Stop
2021-10-24 09:16:43,984 INFO  Play
2021-10-24 09:16:44,200 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:44,252 INFO  Stop
2021-10-24 09:16:44,253 INFO  Play
Exception in thread "SpeakerPlaybackThread" java.lang.IllegalArgumentException: Line unsupported: interface SourceDataLine supporting format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian
	at com.sun.media.sound.DirectAudioDevice.getLine(DirectAudioDevice.java:174)
	at com.soundseeder.speaker.f.run(Unknown Source)
2021-10-24 09:16:44,500 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:44,548 DEBUG 192.168.1.4 is Retro
2021-10-24 09:16:44,601 DEBUG hello received from 192.168.1.4
2021-10-24 09:16:44,883 INFO  Play
Exception in thread "SpeakerPlaybackThread" java.lang.IllegalArgumentException: Line unsupported: interface SourceDataLine supporting format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian
	at com.sun.media.sound.DirectAudioDevice.getLine(DirectAudioDevice.java:174)
	at com.soundseeder.speaker.f.run(Unknown Source)
2021-10-24 09:16:44,898 INFO  Play
Exception in thread "SpeakerPlaybackThread" java.lang.IllegalArgumentException: Line unsupported: interface SourceDataLine supporting format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian
	at com.sun.media.sound.DirectAudioDevice.getLine(DirectAudioDevice.java:174)
	at com.soundseeder.speaker.f.run(Unknown Source)

Maybe I’ve got the wrong Java version from Oracle. I downloaded the jdk-8u311-linux-aarch64.tar.gz version in a haste, I’ll try with the jre-8u311-linux-x64.tar.gz next.