Polaroid FLM-3230TM - Manual (Page 39)

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Other Sound Settings
1. Press the Menu button to display the main menu.
2. Press the ▲▼ buttons to select Settings.
3. Press
► / ▼ buttons to select Audio.
4. Press ►/ ▼ button to select other items.
5. Press OK button to confirm.
AVC
[ ON ]: for general use, like commercial advertisement, AVC
can avoid the sound turns up or down suddenly.
[ OFF ]: for special sound effect, like opera or symphony,
volume can be performed in accordance with the original
sound level.
TV Speaker
Turn the TV Speaker on or off if your TV is connected to
home theater or stereo.
6. User can reset the audio settings back to factory settings.