Emulate pc speaker in QEMU on MacBook Pro?

[Will Senn]

    I see this, in the manual:

The PC speaker audio device can be configured using the pcspk-audiodev machine property, i.e.

qemu_system-x86_64 some.img -audiodev <backend>,id=<name> -machine pcspk-audiodev=<name>
    
      I'm on a macbook pro, what <backend> do I need to specify,
      and what is <name> supposed to be for id and pcspk-audiodev
      in order to get the pc speaker sounds of my dos 2.10 instance to
      be audible on my mac? I could find ANY explanation of what these
      values might be...
      
      Thanks,
      
      Will
    
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