Nokia N77 - Инструкция по эксплуатации - Страница 52

Media applications

52

The required quality level may depend on your demands, 
the headsets 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 bit rate (96–160 Kbps). Variations of AAC, 
such as AAC+ and enhanced AAC+ (eAAC+) provide CD 
quality audio at bitrates as low as 48 Kbps. Classical music 
and music with nuances usually require a higher bit rate 
than basic pop music.

For speech or other sources where the quality of the sound 
is less important than saving storage space, you can use 
bit rates between 8 and 64 Kbps. At low bit rates WMA or 
AAC generally gives better results than MP3.

Variable bitrate

Your device also supports variable bit rate (VBR). VBR 
means that the bit rate of the encoding varies with the 
complexity of the encoded material. When using VBR, the 
encoding is optimized to preserve a constant audio quality 
throughout the track rather than losing quality for 
complex music sections as with constant bit rate (CBR) 
encoding.

Visual Radio

Press 

, and select 

Applications

> 

Radio

. You can use 

the application as a traditional FM radio with automatic 
tuning and saved stations, or with parallel visual 
information related to the radio program on the display, if 
you tune to stations that offer Visual Radio service. The 
Visual Radio service uses packet data (network service). 
You can listen to the FM radio while using other 
applications.

If you do not have access to the Visual Radio service, the 
network service providers and radio stations in your area 
may not support Visual Radio.

You can normally make a call or answer an incoming call 
while listening to the radio. The radio is muted when there 
is an active call.

The radio selects the used frequency band based on the 
country information received from the network. If this 
information is not available, you may be asked to select the 
region you are located in, or you can select the region in 
the Visual Radio settings. See ‘Settings’, p. 54.

Listen to the radio

Note that the quality of the radio broadcast depends on 
the coverage of the radio station in that particular area.