Sony NW-A25 How To Use Manual page 159

Help Guide
playing song.
Note
If you start playback from a bookmark list, only the songs in the
bookmark list are played. Songs in other bookmark lists are not played
even if [Playback Range] is set to [All Range].
[168] How to Use
Upscaling compressed audio to quality almost that
of High-Resolution Audio
The [DSEE HX] function upscales the audio file to quality almost that of
High-Resolution Audio quality and reproduces the clear high-range sound
that is often lost.
To enjoy High-Resolution Audio quality, use the headphones that are
compatible with High-Resolution Audio. MDR-NW750N/MDR-NW750NE
are compatible with High-Resolution Audio. You also need to select the
High-Resolution Audio headphones that you use in [Select Headphones].
1. From the Home menu, select
2. Select [Music Settings] - [DSEE HX] - [On].
Note
The [DSEE HX] function cannot be enabled while listening to sound on
the other Bluetooth audio device.
[169] How to Use
Setting the sound quality easily with a single
operation
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Settings Music Settings
Settings Music Settings
http://helpguide.sony.net/dmp/nwa20/v1/en/print.html
[Settings].
08/06/16 16:25