Sound simulator and sound simulating method

An acoustic simulation apparatus, comprising:

• a model having a prescribed acoustic space;
• a substantially nondirectional loud speaker arranged at a prescribed position within the acoustic space;
• a driving device for driving the loud speaker in accordance with a prescribed driving signal;
• a sound receiving device arranged at a prescribed position within the acoustic space for receiving a response acoustic signal generated in the acoustic space due to the driving of the loud speaker;
• and
• a signal analyzing device for analyzing the response acoustic signal received by the sound receiving device,
• wherein the loud speaker includes a polyhedric cabinet and a plurality of piezoelectric acoustic elements mounted on prescribed faces of the polyhedric cabinet.

An acoustic simulation method for analyzing the acoustic characteristics of the acoustic space, comprising the steps of:

• preparing a model having a prescribed acoustic space;
• arranging a substantially nondirectional loud speaker having a plurality of piezoelectric acoustic elements at a prescribed position within the acoustic space;
• arranging a sound receiving device for receiving a response acoustic signal generated in the acoustic space due to the driving of the substantially nondirectional loud speaker at a prescribed sound receiving point within the acoustic space;
• and
• analyzing by using a signal analyzing device the response acoustic signal received by the sound receiving device when the plural piezoelectric acoustic elements are driven by a prescribed driving signal.