std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
std::string new_midi_source_name (const std::string&);
std::string new_source_path_from_name (DataType type, const std::string&);
std::string new_audio_source_name (const std::string&, uint32_t nchans, uint32_t chan, bool destructive);
std::string new_midi_source_name (const std::string&);
std::string new_source_path_from_name (DataType type, const std::string&);