Samsung Galaxy S4 User Manual page 298

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Recording quality: allows you to set the recording quality to High or
Normal.
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Limit for MMS: allows you to select On or Off. If you Limit for MMS by
selecting On, you will be assured that the recording can be sent in a
message.
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Contextual filename: (requires GPS tagging) allows you to adjust the
filename based on contextual information such as your current GPS
location.
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Default name: allows you to choose the name prefix for your recordings.
For example, if your Default name is Voice, your recordings would be
named Voice 001, Voice 002, Voice 003, etc.
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Noise reduction: allows you to activate/deactivate background noise
suppression.
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Recording volume: allows you to assign the ambient noise quality of
your current location so the device can better detect audio. Choose from
High or Low.
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Channel: allows you to assign recording mode to either Mono or Stereo.
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Skip interval: allows you to assign a skip length.
• End: allows you to exit the application.
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