The Microsoft Software Synthesizer is supplied with DirectMusic and is the default port. The synthesizer creates a waveform based on a stream of MIDI messages, using instrument timbres synthesized from DLS samples. By default the samples are from the Roland GS collection, which is also part of the DirectMusic installation.
Note The Roland GM/GS Sound Set cannot be modified. See the Copyright Warning for the legal restrictions.
In the current release of DirectMusic, the synthesizer is implemented in a DLL that sends its output to the DirectSound mixer.
The Microsoft Software Synthesizer includes reverberation capabilities, which are on by default. The Waves TrueVerb reverberation technology is licensed to Microsoft as the SimpleVerb implementation.