A:Answer Hello Onechain, thank you for your interest in the Toshiba 43C350KU. No, this TV does not have a feature to prevent the sound from getting louder during the commercials. If you have any further questions or concerns, please give us a call at 1-888-407-0396 or email us at Support@Toshibatv-usa.com. Thanks again, Toshiba Support Team.