Sony NW-A55 Help Manual page 112

Hint
If you do not want the player to charge from the computer, remove the check mark from [Charge this player from the connected
device]. Tap the menu items in the following order.
– [Settings] – [USB DAC Settings] ([Function Settings]) – [Charge this player from the connected device].
However, if the USB port on the computer is set to supply power constantly to the connected device, the player may be charged
by the computer.
Note
While the USB-DAC function is active, the following functions are disabled.
The Noise Canceling function
Ambient Sound Mode
You cannot listen to played-back sound wirelessly while the USB-DAC function is active.
The USB-DAC function is designed exclusively for enjoying music. The player processes the audio signals prior to playback. As a
result, the audio on the player becomes slightly delayed compared to the computer. This means that images and audio may not
be synchronized when you use the USB-DAC function for the following purposes:
Playing videos
Playing games
Use the USB-DAC function to enjoy music on its own.
The contents of the Help Guide may be subject to change without notice due to updates to the product's specifications.
Related Topic
Adjusting the sound quality settings
Installing Music Center for PC (Windows)
How to use the various screens
USB-DAC screen
Customer support website
4-740-523-12(1) Copyright 2018 Sony Corporation
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