Sony Bravia KDL-32D3010 Operating Instructions Manual page 24

Dual Sound
i Speaker Link
i Dual Sound
24
GB
Selects the sound from the speaker for a stereo or bilingual broadcast.
"Stereo"/"Mono": For a stereo broadcast.
"A"/"B"/"Mono": For a bilingual broadcast, select "A" for sound channel 1, "B"
for sound channel 2, or "Mono" for a mono channel, if available.
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If you select other equipment connected to the TV, set "Dual Sound" to "Stereo", "A" or "B".
However, when the external equipment connected to the HDMI socket is selected, this is fixed
to "Stereo".
Switches the TV's internal speakers on/off when headphones are connected.
"On": Sound is output only from headphones.
"Off": Sound is output from both the TV and headphones.
Selects the sound from the headphone for a stereo or bilingual broadcast, which
depends on the "Dual Sound" selection.