Touch responsive envelope shape generation device

An envelope shape generation device comprising:

• envelope memory means for storing plural envelope data;
• touch information generation means for generating touch information;
• address signal generation means for generating an address signal based on said touch information generated by said touch information generation means;
• and
• envelope data reading means for selectively reading out the envelope data stored in said envelope memory means in response to said address signal to form an envelope shape signal, said envelope data reading means reads out one of said plural envelope shapes as a sustain envelope shape followed by an attack envelope shape, and said plurality of sustain envelope shapes further includes a loop sustain envelope shape and a fixed sustain envelope shape having a constant envelope shape value and said envelope shape reading means reads out the loop sustain envelope shape repeatedly when said envelope shape reading means has selected the loop sustain envelope shape.

An envelope shape generation device comprising:

• envelope shape storing means for storing envelope data;
• touch information generation means for generating touch information;
• envelope shape reading means for reading out the envelope data stored in said envelope shape storing means, in response to the touch information generated by said touch information generation means, to form an envelope shape signal,
• wherein said envelope shape reading means comprises;
• first envelope shape reading means for reading out a first envelope shape section from an attack envelope shape to an envelope shape value immediately before starting of a release envelope shape in response to key-on information;
• and
• second envelope shape reading means for reading out a second envelope shape section consisting of a release envelope shape following the first envelope shape section in response to key-off information;
• and
• release envelope correction means for correcting a head value of the release envelope shape having been read out by said second envelope shape reading means to agree with the envelope shape value having been read out by said first envelope shape reading means thereby to connect the second shape section smoothly to the first envelope shape section.