Nt FM C++ Classes

Real-time FM synthesis of game sound effects from patches of a few hundred bytes.

Using the Module

target_link_libraries(app PRIVATE Nt::FM)

Nt FM synthesises lasers, coins, jumps, explosions, alarms and engine loops with four-operator FM, from JSON patches instead of sample files. QtFM::Engine plays QtFM::Patch values in real time or renders them offline; QtFM::AudioOutput connects it to a sound device. Qt has no such module.

See Using Nt FM for a walk through and the patch format, and examples/fm/fmplay.cpp for a complete program.

Classes

QtFM	The QtFM namespace holds Nt FM: an FM synthesiser for game sound effects.
QtFM::AudioOutput	The AudioOutput class is the interface of a sound output that an Engine renders into.
QtFM::Chip	The Chip class gives register-level access to a chip core that an Engine runs.
QtFM::ChipCore	The ChipCore class is the interface of a chip emulation core.
QtFM::Engine	The Engine class plays patches in real time, or renders them offline.
QtFM::EngineConfig	The EngineConfig struct holds the settings of an Engine, fixed when it is constructed.
QtFM::MidiFile	The MidiFile class reads the notes of a Standard MIDI File.
QtFM::MidiFile::Control	The Control struct is a change of a channel's level, pan or pitch bend.
QtFM::MidiFile::Note	The Note struct is one note of a MidiFile.
QtFM::MidiPlayer	The MidiPlayer class plays a MidiFile on an Engine with FM instruments.
QtFM::MusicPlayer	The MusicPlayer class plays chip music from register logs.
QtFM::Patch	The Patch class holds one complete, self-describing sound.
QtFM::PatchBank	The PatchBank class holds a named set of patches, such as all the sounds of a game.
QtFM::PlayOptions	The PlayOptions struct holds how Engine::play() plays a patch.
QtFM::Sequence	The Sequence class holds timed notes on a tempo grid, for jingles and short cues.
QtFM::Sequence::Note	The Note struct is one note of a Sequence.
QtFM::VoiceHandle	The VoiceHandle class controls a voice that Engine::play() started.