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• Back up your original recordings

• Remove leading and trailing silence

• Add a short fade at the start (fade in) and end (fade out) of the recording

• Normalize the recorded sound volume

• Automatically level the volume (compress the dynamic range)

• Convert the file as described in the following table:

  Setting	Details	Required or recommended
  Sample rate	8 kHz/16 kHz	Required/Recommended
  Sample depth	16 bit	Required
  Recording gain	Adjust the recording gain to just below the red scale to avoid recording at full volume	Required
  File format	WAV (.wav file)	Required
  Audio channel	Mono	Required
  Encoding	Linear pulse-code modulation (LPCM)	Recommended

  
  

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