Sony Ericsson K700 Benutzerhandbuch

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White Paper
 K700
11
February 2004
Technologies in detail
Entertainment
Media player
The media player supports different audio and 
video formats, streaming as well as download and 
playback.
Music
The media player is a multi-format digital audio 
player which enables the user to carry and play a 
selection of favourite songs. A range of audio 
formats are supported:
AAC 
Advanced Audio Coding. AAC is the latest 
audio coding standard, defined in the MPEG-2 
standard and is used for high-quality audio 
compression. AAC provides higher quality than 
MP3 at the same bit rate, or for the same audio 
quality it uses a 30 percent lower bit rate. It sup-
ports the coding of multichannel audio, with up 
to 48 main channels and 16 low-frequency 
channels. The AAC offers three different profiles 
to facilitate trade off between quality, memory 
and processing power requirements. They 
include: Main Profile (MP), Low Complexity (LC) 
and Scalable Sampling Rate (SSR).
AMR 
Adaptive Multi Rate. A medium quality com-
pressed sound format.
MIDI 
Musical Instrument Digital Interface. 
Unlike the other formats, MIDI is not a recording 
of music, but a description which enables a 
local synthesizer to play the music from the 
instructions included in the MIDI file. Since a 
MIDI file only represents player information, it is 
far more concise than formats that store the 
sound directly. An advantage is very small file