Nokia SP-MIDI Creator is a plug-in for converting standard MIDI files into Scalable Polyphony MIDI (SP-MIDI). The maximum number of concurrent sounds varies by device and therefore devices cannot play all the instruments that are used in a MIDI song. This plug-in can be used to configure a MIDI file by setting priorities for the instruments so that the
song will sound as good as possible on various devices.
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just look for audio suite in www.forum.nokia.com