Yamaha PSR-SX600 Owner's Manual page 98

Turning Audio Loopback On/Off
This allows you to set whether Audio Input Sound (page 100) from the external
device is output to a computer or a smart device or not along with the performance
played on the instrument. To output the Audio Input Sound, set the Audio Loopback
to "On."
For example, if you want to record the Audio Input Sound as well as the sound
played on the instrument by using the connected computer or smart device, set this
to "On." If you intend to record only the sound played on the instrument by using the
computer or smart device, set this to "Off."
The setting can be made via [MENU] → Utility → Config1 → Audio Loopback.
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PSR-SX600 Owner's Manual
NOTE
• With Audio Recording (page 75), the
Audio Input Sound from the external
device is recorded when this is set
to "On," and not recorded when set
to "Off."
• The sound cannot be output to a
device connected by the [AUX IN]
jack.