OPPO Digital BDP-105 user manual Down Mix Mode

S E T U P M E N U O P T I O N S

Down Mix Mode

Downmixing is the process of converting multi-channel audio to a lesser number of channels. For example, converting a 5.1ch source to stereo or converting a 7.1ch source to 5.1ch. Downmixing allows the audio output from the player to match the exact number of speakers available in your home theater.

The current down mix mode is displayed in the lower right corner of the speaker placement illustration. To change the audio down mix setting, press the ENTER button while the cursor is over the Down Mix option. The following down mix modes are available:

ξLT/RT – Left Total/Right Total. The center and surround channels are mixed into the two front channels according to the LT/RT matrix. A Dolby Pro Logic receiver will decode the two-channel audio into surround audio.

ξStereo – This mode down mixes multi-channel audio to 2-channel stereo output. For original stereo content the output will not change. For original multi-channel content the surround and center channels will be mixed with the left and right front channels. This is recommended for use with TV sets or stereo receiver/amplifiers.

ξ5.1Ch – This mode enables 5.1ch decoded audio output. The number of actual output channels depends on the disc. If the source content has more channels, the surround back channels will be mixed into the surround channels.

ξ7.1Ch – This mode enables 7.1ch decoded audio output. The number of actual output channels depends on the disc. For 6.1ch contents, the left and right surround back speakers will both output the same surround back audio channel.

Test Tone

Test tones are artificially-created sounds that are used to test your audio speaker system and help to identify any wiring faults. By default the Test Tone is set to Off, with the status displayed in the lower left corner of the screen.

To begin the test, press the ARROW buttons to highlight the Test Tone option, and press the Enter button to change the test tone status to On. Press the ARROW buttons to select a speaker, and you will hear the test sounds. To stop the test process, press the ARROW buttons to highlight the Test Tone option and press the Enter button to switch the status back to Off. Please note these test tones only apply on multi-channel audio outputs.

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