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DISK I/O STRATEGIES FOR HARD DISK RECORDING AND PLAYBACK

• many applications just write/read to/from the disk whenever they want to.
• disk seek times can exceed audio latency!
• operating system handling of disk I/O can make it even worse.
• results: audible dropouts, audio not recorded.
• key problems:
  • cannot read/write to disk as part of an audio processing thread, so when can we do it?
  • how do we buffer data until we read and/or write it?