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Tip: Even when you use S/PDIF for audio, the TV can correctly detect more audio
formats if you connect an HDMI® cable between the TV’s HDMIARC or HDMI eARC port
and the receiver’s ARC or eARC port.
Choosing an audio format
After making the required HDMI® ARC, eARC, or S/PDIF optical connection, go to
Settings>Audio>S/PDIFandARC option and select the audio format to use.
Choosing Autodetect is the easy solution, and generally provides good results. However, if
you have a high-end sound system and want to make sure you are getting the best sound
quality available in the programs you are watching, you can choose another setting.
•
Autodetect – Automatically detects the incoming audio format and transcodes it to a
compatible available format for the audio output (ARC, eARC, or S/PDIF).
•
Autopassthrough – Passes through the input audio to the connected receiver without
transcoding, sometimes resulting in better audio quality especially for high-end audio
formats such as those that take advantage of the higher bandwidth of eARC, including
Dolby MAT and Dolby Digital Plus 7.1, among others.
•
PCM-Stereo – Always outputs pulse-code modulated stereo, regardless of input audio
format.
•
DolbyDigital – Converts all input formats to Dolby Digital.
•
DolbyDigitalPlus – Converts all input formats to Dolby Digital Plus.
•
DolbyDigital–DTS – Converts all inputs except DTS to Dolby Digital. If DTS is detected
and the receiver supports DTS, passes through the DTS audio without modification.
•
DolbyDigitalPlus–DTS – Converts all input formats except DTS to Dolby Digital
Plus. If DTS is detected and the receiver supports DTS, passes through the DTS audio
without modification.
Note: DTS audio formats are meant to be used with ARC, eARC, or S/PDIF connections
to a DTS-capable home theater receiver. If you use one of the DTS options with the TV
speakers, you might not hear any audio.
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