I cannot hear any sound from SB

I started approaching SB with a new PI 4. Some things seem to work but i do not get sound.
Setup:

• PI 4, 1GB RAM
  
• 220206 Image from this website
  
• No Configuration changes but for wifi settings. All other settings untouched
  
• No additional USB stick
  
• My Midi-Device (MalletStation) is detected and can be monitored with midimon
  
• Onboard audio, additionally tested USB Audio Device
  
• Tested with and without HDMI display connection
  
• Tested headphone at onboard audio jack, Display and USB Audio Device 
  

With this configuration i do not get audio to my ears.
Any tipps available here?

Finally i found a solution. As i was able to see incoming signals from my controler i assumed the audio device to be the problem.

In my configuration.txt the name of the audio device was set to the default value "Detect". I wanted to change this to the name of my audio device connected bia USB. So i connected to the system (in my case with shell via ssl) and called 
arecord -l
which is listing all audio devices found by the system. I took over the name of my device and changed "Detect" to the device name. 
I rebooted and after 20 seconds it started making sound via the aduio device and the connected headphones :-)