Microsoft Corporation RM-43 User Manual

Page of 126
Music player
27
Library details
In  
Music menu
 select 
Options
 > 
Music library details
The following information is displayed:
Songs
—The current number of songs in the library
Duration
—The length of current songs together
Used
—The total size of the files in the music libray
Available
—Available hard disk space in gigabytes
Refreshed
—The date when the libraray was last modified
Set a song as a ringing tone
Select a song.
Select 
Options
 > 
Set as ringing tone
. The selected 
song has been set as the ringing tone for the active 
profile.
Change album art
Select a song.
Select 
Options
 >  
Album art
.
Select 
Options
 >  
Change
.
Scroll throough images from your Gallery, and select 
OK
.
To restore the original album art, select 
Restore 
original
.
About encoded audio
Applications like Windows Media Player and Nokia Audio 
Manager encode audio files with codecs like WMA or MP3 
to save storage space. The encoding is done by removing 
those parts of the audio signal that are not audible or only 
barely audible by human ear. 
Regardless of the encoder and codec quality, the sound 
quality of the resulting file is not as good as the original. 
The basic codecs supported by this device are AAC, WMA, 
and MP3. All of these have different variations. 
Bitrates
When encoding audio, the quality of the resulting sound 
depends on the sample rate and bit rate used for the 
encoding. Sample rate is expressed as thousands of 
samples per second (kHz), and for CD music the sample 
rate is fixed at 44.1 kHz. Bit rate is expressed as kilobits 
per second (Kbps). The higher the bitrate, the better the 
sound quality.
The required quality level may depend on your demands, 
the headphones used, and the surrounding noise. For 
MP3s a bitrate between 128 and 192 Kbps usually gives 
results good enough for listening to pop music with your 
device.  WMA or AAC generally gives a similar result as 
MP3 with one step lower bitrate (96-160 Kbps). Variations