Electronic percussion system simulating play and response of acoustical drum

An electronic drum, comprising:

• a cylindrical drum shell having openings at opposite axial ends;
• a drum head stretched across one of said shell openings;
• rim tensioning means mounted on said shell for adjustably tensioning said drum head;
• a sound energy attenuation foam material substantially filling a cavity defined by said drum shell and drum head;
• a sound-to-electrical transducer means embedded in said foam material in spaced apart relation from said drum head and drum shell;
• and
• sound signal synthesizing means electrically coupled to said transducer.

An electronic percussion device having the look and feel of an acoustic drum, comprising:

• a cylindrical drum body shell having open ends;
• a striking drum head mounted in stretched condition across one of said open ends and a lower drum head mounted in stretched condition across the other open end and thereby forming a drum cavity bounded by the interior surfaces of said shell and drum heads;
• rim mounted head tensioning and adjustment means disposed circumferentially of said cylindrical drum body shell and being adjustable to hold and tighten to a desired tension said striking drum head and said lower drum head in said stretched conditions respectively across said open ends of said cylindrical drum body shell;
• a sound energy attenuating elastomeric foam filler in said cavity;
• and
• sound-to-electrical transducer means disposed within said filler and being spaced from said drum head and drum shell so that no direct mechanical energy is coupled from said head or shell to said transducer means, whereby said cylindrical shell body and drum heads have the stick response and appearance of an acoustic drum.