Sony HT-ST9 Operating Instructions Manual page 32

Notes

The feature above may not operate with certain devices.

If you set [Standby Through] to [Auto] or [On] (page 25), and then play
back the content on a connected device when the system is in standby
mode, sound and image can only be output from the TV while the
system remains in standby mode.
 The One-Touch Play function may work with devices other than those
manufactured by Sony, but operation is not guaranteed.
System Audio Control
If you turn on the system while you are watching the TV, the TV
sound will be output from the speakers of the system automatically.
The volume of the system will be adjusted when you adjust the
volume using the TV's remote control.
If the TV sound was output from the speakers of the system the last
time you watched the TV, the system will be turned on automatically
when you turn on the TV again.
You can also enjoy this feature when using the Twin Picture function
(Picture and Picture (P&P)) on your TV.
 If the [TV], [HDMI1], [HDMI2] or [HDMI3] input is selected, the sound
can be output from the system.
 If other than [TV], [HDMI1], [HDMI2] or [HDMI3] input is selected, the
sound is only output from the TV when using the Twin Picture
function. When you turn off the Twin Picture function, the sound is
output from the system.
Notes

The number for the system's volume level is displayed on the TV screen
depending on the TV. The displayed volume number may differ from
the number on the front panel display of the Bar Speaker.

The System Audio Control function may work with devices other than
those manufactured by Sony, but operation is not guaranteed.
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Audio Return Channel
You can enjoy TV sound via the system by using just one HDMI cable.
For details of the setting, see "[Audio Return Channel]" (page 25)
Note
The Audio Return Channel function may work with devices other than
those manufactured by Sony, but operation is not guaranteed.
Control for HDMI sync function
The system's [Control for HDMI] function automatically becomes
active by activating the TV's Control for HDMI (BRAVIA Sync)
function. "DONE" appears in the front panel display of the Bar
Speaker when this is done.
Notes
 You can set the [Control for HDMI] function manually if the above setting
is not working. For details, see "[HDMI Settings]" (page 25).
 The control for HDMI sync function is a proprietary function of Sony. This
function cannot operate with devices other than those manufactured by
Sony.
Echo Canceling Sync
You can reduce the echo when you use the Social Viewing function
while watching TV programs. Conversation becomes clearer.
 If the current selected input is [TV], [HDMI1], [HDMI2] or [HDMI3],
the input is automatically changed to [TV] input. Sound of the
Social Viewing and TV program is output from the system.
 If the current selected input is other than [TV], [HDMI1], [HDMI2] or
[HDMI3], the sound of the Social Viewing and the playback content
is output from TV.
Notes
 This feature only works for a TV that supports Social Viewing function.
For details, refer to the operating instructions of your TV.

Be sure to set the audio output setting on your TV so that the sound can
be output through this system.
 The Echo Canceling Sync function is a proprietary function of Sony. This
function cannot operate with devices other than those manufactured by
Sony.