AV Stumpfl SC MASTER 16, Руководство пользователя, Страница: 62 / 139

capacity of 512 MB, for example, more than 8 hours of stereo
sound in a CD-like quality can be stored. This is equivalent to
a data rate of 128 kbits/s.
The playback quality, on the one hand, depends on the data
compression: the higher the data rate, the better the sound.
On the other hand, it also depends on the MP3 encoder used.
Wings Platinum allows you to use MP3 encoders by different
producers. Further information on this subject can be found in
the Wings Platinum Online Help or on the Internet at
http://www.xingtech.com/mp3/
In the list below you can find out about the dependencies
between memory space requirements and extent of compres-
sion. It applies to stereo sound.
Data rate CF card 512 MB 1 GB 2 GB
128 kbits/s Playing time 8 hours 16 hours 32 hours
192 kbits/s Playing time 6 hours 12 hours 24 hours
256 kbits/s Playing time 4 hours 8 hours 16 hours
In relation to the audio data, the size of show data is negligi-
ble. Even comprehensive shows require only a few MB.
Playback of synchronized multi-channel sound
MP3 only supports stereo files. Therefore, multi-channel sound
requires a show project, in which several stereo samples are
started simultaneously. For technical reasons, SC MASTER
6/16 does so with a tolerance of plus/minus two sample val-
ues, which is about the same as displacing one loudspeaker
forward or backward by 8 mm with reference to the other. In
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6BStructure of the card player