Sound Lock enables you to limit the audio volume while watching movies or video clips. Most movies increase the audio volume during certain high impact scenes or commercials, which, in case of late night movie sessions, may wake up the kids or other family members.Sound Lock allows you to set a maximum volume level and automatically turns the volume down for you during the loud scenes and winds it back up after they finish, so you can continue to watch the movie without having to adjust the volume manually.The default settings will work for most scenarios but advanced users can also choose to apply Sound Lock only to certain audio channels or sound devices.