Apparatus and system for generating sound based upon waveform data and system-sequence data

A sound producing apparatus for generating sound based on waveform data that determines a timbre for sound produced by the apparatus and system-sequence data including information for processing the waveform data, the apparatus comprising:

• a read-write main memory storing the waveform data and the system-sequence data of a selected music title;
• a first submemory, coupled to the main memory, for storing the waveform data;
• a second submemory, coupled to the main memory, for storing the system-sequence data;
• a sound signal generator, coupled to the first submemory and the second submemory, for generating sound signals based on the waveform data stored in the first submemory and the system-sequence data stored in the second submemory;
• a first controller, coupled to the main memory, the first submemory and the second submemory, for controlling the entry of waveform data of a selected music title stored in the main memory into the first submemory, and for controlling the entry of system-sequence data of a selected music title stored in the main memory into the second submemory, wherein the first controller controls the sound signal generator, based on the system-sequence data stored in the second submemory, to generate the sound signals;
• and
• a communication controller, coupled to a host unit and the main memory, for controlling entry of at least one of the waveform data and the system-sequence data, received from the host unit over a telecommunication line, into the main memory.

A sound producing system which implements a sound output process, the system comprising:

• a plurality of sound producing apparatuses for producing sound, each comprising a read-write main memory storing waveform data that determines a timbre for sound produced by the system;
• a host unit that outputs waveform data for entry into each of the read-write main memories, wherein the host unit comprises a host memory storing the waveform data;
• a telecommunication line connecting the host unit with each of the sound producing apparatuses;
• and
• a communication controller for controlling the data communication between the host unit and each of the sound producing apparatuses over the telecommunication line.

A sound producing system which implements a sound output process, the system comprising:

• a plurality of sound producing apparatuses for producing sound, each comprising a read-write main memory storing waveform data that determines a timbre for sound produced by the system and storing system-sequence data that includes information for processing the waveform data;
• a host unit that outputs waveform data for entry into each of the read-write main memories, wherein the host unit comprises a host memory storing waveform data and system-sequence data of a selected one of a plurality of music titles;
• a telecommunication line connecting the host unit with each of the sound producing apparatuses:
• a communication controller for controlling the data communication between the host unit and each of the sound producing apparatuses over the telecommunication line;
• and
• wherein each of the sound producing apparatuses comprise:
• a music title-selector for user selection of a music title;
• means for determining whether waveform data and system-sequence data for producing a selected musical title are stored in the read-write main memory;
• and
• wherein, when the determining means determines that either or both of the waveform data and the system-sequence data for the selected music title are not stored in the main memory, the communication controller requests and receives from the host unit the waveform data and the system-sequence data not stored in the main memory.