Electronic musical instrument of full-wave readout system

An electronic musical instrument comprising:

• pitch designating means for designating a pitch of a musical tone to be produced;
• first means for generating a first waveshape based on first waveshape data;
• second means for generating a difference waveshape representing a difference between said first waveshape and a second waveshape, either one of said first waveshape and said second waveshape having plural periods and varying with time in its shape and said first waveshape and said second waveshape being different from each other;
• detecting means for detecting an amount of depression of a depressed key;
• level designating means for designating an amplitude level of said second waveshape data in accordance with said detected amount of depression;
• and
• interpolating means coupled to said first means, second means and level designating means for adding said first waveshape data to said second waveshape data whose amplitude level is designated by said level designating means.

An electronic musical instrument comprising:

• pitch designating means for designating a pitch of a musical tone to be produced;
• first waveshape generating means for generating a first waveshape based on first waveshape data;
• second waveshape generating means for generating a second waveshape based on second waveshape data;
• detecting means for detecting a value corresponding to a depressed key;
• mixing information generating means for generating mixing information representing a mixing ratio of said first waveshape data to said second waveshape data in accordance with said value;
• and
• interpolating means connected to said first and second waveshape generating means and said mixing means for mixing said first and second waveshape data at said mixing ratio and forming a musical tone waveshape for said musical tone to be produced;
• said first waveshape generating means comprising a first memory which stores said first waveshape data representing a certain waveshape which has plural periods and whose shape varies with time and first readout means which reads out said first waveshape data at a rate corresponding to the designated pitch;
• and
• said second waveshape generating means comprising a second memory which stores said second waveshape data and second readout means which reads out said second waveshape data at a rate corresponding to said designated pitch.

An electronic musical instrument comprising:

• pitch designating means for designating a pitch of a musical tone to be produced;
• first waveshape generating means for generating a first waveshape based on first waveshape data;
• second waveshape generating means for generating a second waveshape based on second waveshape data;
• operating member means having at least one operating member capable of being manually operated;
• detecting means for detecting a degree of operation of said operating means;
• mixing information generating means for generating mixing information representing a mixing ratio of said first waveshape data to said second waveshape data in accordance with said detected degree of operation;
• interpolating means connected to said first and second waveshape generating means and said mixing means for mixing said first and second waveshape data at said mixing ratio and forming a musical tone waveshape for said musical tone to be produced;
• said first waveshape generating means comprising a first memory which stores said first waveshape data representing a certain waveshape which has plural periods and whose shape varies with time and first readout means which reads out said first waveshape data at a rate corresponding to said designated pitch and;
• said second waveshape generating means comprising a second memory which stores said second waveshape data and second readout means which reads out said second waveshape data at a rate corresponding to said designated pitch.

An electronic musical instrument comprising:

• pitch designating means for designating a pitch of a musical tone to be produced;
• first waveshape generating means for generating a first waveshape based on first waveshape data;
• second waveshape generating means for generating a second waveshape based on second waveshape data;
• mixing information generating means for generating mixing information representing a mixing ratio of said first waveshape data to said second waveshape data;
• interpolating means connected to said first and second waveshape generating means and said mixing means for mixing said first and second waveshape data at said mixing ratio and forming a musical tone waveshape for said musical tone to be produced;
• said first waveshape generating means comprising a first memory which stores said first waveshape data representing a first certain waveshape which has an attack portion and plural periods and whose shape varies with time and first readout means which reads out said first waveshape data at a rate corresponding to the designated pitch;
• and
• said second waveshape generating means comprising a second memory which stores said second waveshape data and second readout means which reads out said second waveshape data at a rate corresponding to said designated pitch.