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White Paper V600
24 August 2005
MIDI is a specification for a communications proto-
col principally used to control electronic musical
instruments. MIDI is today a well known standard
used by many musicians, composers and arrang-
ers.
A MIDI signal or file does not contain any music. It
contains binary data (information) of how a melody
is played and when this data reaches a synthesizer,
the synthesizer will translate the binary data to
music, when connected to an amplifier with speak-
ers so that the sound becomes audible.
Please visit www.midi.org
for more information.
SP-MIDI
SP-MIDI stands for Scalable Polyphony MIDI. SP-
MIDI is based on the MIDI format and adapted for
mobile phones and other portable products. The
objective is to secure inter operability between
products with different sound capabilities.
Sound recorder
The sound recorder can record both voice memos
and call conversations. Sound recorder saves
recordings directly to memory. The size and length
of recordings are limited by available storage
space.
Sounds are recorded in AMR format and saved in
Sounds. Recorded sounds can also be set as ring-
tones.
Video clips
Moments can easily be shared with friends and
family in other geographical sites by capturing the
moment with the video recorder and then sending
the video clip in an MMS message. The video
recorder supports QCIF and SubQCIF.
In order to view video clips in the phone, the media
player supports download and playback of MPEG-
4 and H.263 formats.
Video clips may be downloaded from the Internet
or copied from a connected computer.
Files must be of types MP4 or 3GP, having video
encoded in MPEG-4 Simple Visual Profile and
audio in AAC or AMR format. Video can be
encoded in H.263. The phone encodes video in
H.263 Profile 0 Level 10 format.
Streaming support
The media player can be launched from hyperlinks
in the WAP browser, SDP files in My Items or in
messages through hyperlinks. Content is streamed
using RTSP (Real Time Streaming Protocol) ses-
sion control.
DRM
Digital Rights Management, DRM, is a technology
that enables secure distribution, promotion, and
sale of digital media. Examples of such content
include images, wallpapers and screen savers with
themes from films, music tones from musical art-
ists, and branded games. In other words, content
providers can control how users may use different
types of content in devices, such as mobile
phones, smartphones or PDAs. Content providers
can also control the use of content in related serv-
ices, such as MMS.
Sony Ericsson is actively focusing on technology
standardization for the DRM concept, and supports
the ongoing standardization work and activities of
the OMA (Open Mobile Alliance). Sony Ericsson is
fully committed to open standard solutions in the
mobile environment and is a principal driver of
many open standard initiatives. This will ensure the
interoperability of mobile terminals in the DRM area
and also result in a strong, competitive DRM stand-
ard.
How DRM works
The control of the content in digital media is exe-
cuted by defining usage rights for the content. The
usage rights give the content providers flexibility in
the way they can publish and sell content. Rights
can be defined so that a picture can be used by
subscribers only, and rights can be defined so that
a music tone can be played only a limited number