From: alexm0n@gmail.com   
      
   On 06 Aug 2025 02:03:29 -0300, Mike Spencer wrote:   
   > I don't understand the sound setup on Slack 15.   
   >   
   > rc.alsa and rc.pulseaudio in /etc/rc.d are both 644.  rc.pulseaudio says   
   >   
   >     # Start/stop/restart PulseAudio in system mode.   
   >     # In this mode, a single system instance of PulseAudio will be   
   >     shared by # multiple local users.   
   >     #   
   >     # Please note:  this is not generally the best way to use   
   >     PulseAudio!   
   >     # Normally pulseaudio will start automatically as-needed with an   
   >     instance # per audio user.   
   >   
   > How does that work?  pgrep shows a pulseaudio process running even when   
   > mplayer isn't playing. Where is the running process started?   
      
   pulseaudio is spawned by the first program that tries to use it (actually   
   probably by libpulse not the program's code). it just stays running after   
   that first audio program is gone. if you choose the right program (single   
   thread, like running 'pactl info' or the 'playsound' command) the spawnee   
   pulseaudio process id will be exactly one above the spawner process id.   
      
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