Sony ICD-UX570 Help Manual page 25

LPCM 44/16: LPCM file
MP3 192k, MP3 128k, MP3 48k: MP3 file
12.
Focused/Wide indicator
Indicates whether focused recording or wide recording is set.
13.
Recording Filter indicator
Indicates that the recording filter function is set.
NCF(Noise Cut):
Cuts high-frequency sounds except for human voices as well as low-frequency sounds.
LCF(Low Cut):
Cuts low-frequency sounds, including noise from projectors and roaring wind sounds.
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