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UNIX Approaches

• sound servers using the "push" model
• a.k.a "write as much as you want, whenever you want"
• examples include esd, artsd, NAS, MAS and others
• most don't provide inter-application routing
• push model doesn't maintain synchronous operation of all applications
• one app generating audio for time N while another is processing audio for time N .. N+T
• OS has difficulty scheduling each app correctly
• works for consumer apps like MP3 players and system messages, but not "pro" audio