Enabling the Sound (Additional Settings)Sound > Additional Settings Try NowConfigure additional settings for optimum audio output.● DTV Audio Level Try Now(Digital channels only)The TV cannot freely control the volume of the digital audio that it sends to the AV receiver. Usethis to set the digital audio volume at a comfortable level." According to the type of broadcast signal, MPEG / HE-AAC can be adjusted between -10dB and 0dB." To increase or decrease the volume, adjust between the range 0 and -10 respectively.● Audio Format, Audio DelayThis Smart TV is SPDIF-enabled. The Sony Philips Digital Interface (SPDIF) provides digital audiooutput to speakers and various digital devices, including A/V Receivers and home theatres.Audio Format Try NowSelects the Digital Audio output (SPDIF) format. The available Digital Audio output (SPDIF)formats may vary depending on the input source.Audio Delay Try NowThis setting helps correct timing mismatches between the audio and video tracks when you arewatching TV and listening to audio through a digital audio device. Enabling the feature displays aslide bar that you can use to adjust the delay by up to 250ms.● Dolby Digital Comp Try NowSome digital TV programmes provide 5.1-channel Dolby audio. This TV converts Dolby audio tostereo audio so that it can play the sound through the TV’s speakers. There are two methods tochoose from. RF is for better sound at lower volumes, and Line is for higher volumes.● Auto Volume Try NowWhen you change channels, video sources, or content, Auto Volume automatically adjusts theTV's volume level so that the volume level remains the same for all sources. For example, if youswitch from a streaming video application to a Blu-ray player or a favourite TV channel, AutoVolume can modify the volume up to 12db to equalise the sound.The Auto Volume function has two settings: Normal and Night. Normal applies a normal levelof volume adjustment. Night applies a slightly lower volume level and is ideal for late-night TVviewing. If you want to use the volume control of a connected source device to control the sound,deactivate the Auto Volume function. When you use the Auto Volume function with a sourcedevice, the device's volume control may not function properly.