Sony 4-127-580-13(1) Operating Instructions Manual page 84

Menu items
VOR
DISPLAY
DPC

GB
Settings (*: Initial setting)
Sets the VOR (Voice Operated Recording) function.
ON:
Recording starts when the IC recorder detects sound and
pauses when no sound is heard, eliminating recording
during soundless periods. The VOR function is activated
when  (record/pause) is pressed.
OFF*:
The VOR function does not work.

Note
If "REC LEVEL" is set to "MANUAL, " the VOR function does not work.
Changes the display mode in the playback/stop mode.
ELAPSE*:
Elapsed playback time of one message
REMAIN:
The remaining time of one message
REC DATE:
Date recorded
Sets the DPC (Digital Pitch Control) function.
When you set the DPC switch to "ON, " you can adjust the
speed of the playback in a range from +200% to -75%. Set the
speed by 10% for + setting and by 5% for – setting.
–30%*
See page
42
–
59