Method and apparatus for emulating the pitch varying effects of pipe organ wind systems and acoustic coupling in an electronic musical instrument

An electronic musical instrument comprising:

• input means having a plurality of individually activatable input elements for selecting different combinations of voices;
• voice generator means responsive to the input means for generating at least one voice signal representative of the selected combination of voices including at least one voice having at least one controlable parameter, the generator means also being responsive to at least one control signal for varying the at least one parameter of the at least one voice represented by the at least one voice signal;
• and
• regulator means responsive to the input means for generating the control signal, the regulator means being responsive to changes in the selected combination of voices for changing the level of the control signal according to a damped oscillatory response.

An electronic musical instrument comprising:

• input means having a plurality of individually activatable input elements for selecting different combinations of voices, with each voice having a pitch corresponding to a note of the musical scale;
• voice generator means responsive to the input means for generating at least one voice signal representative of a selected combination of voices, and responsive to at least one control signal for varying the frequency of each voice represented by the at least one voice signal;
• and
• regulator means responsive to the input means for generating the at least one control signal corresponding to the selected combination of voices for varying the frequency of each voice from the pitch for that voice within a range of frequencies that increases with increasing numbers of voices.

An electronic musical instrument comprising:

• keyboard means having a plurality of individually selectable keys corresponding to notes of the musical scale;
• stop control means having a plurality of individually selectable switches corresponding to voices for the notes selected on the keyboard means;
• a plurality of voice generator means, each generator means being responsive to an associated voice control signal for generating a voice signal representative of at least one selected voice at at least one selected note, and responsive to at least one frequency control signal for varying at least one frequency of the at least one voice represented by the at least one voice signal;
• generator control means responsive to the keyboard means and the stop control means for generating voice control signals for controlling operation of the plurality of voice generator means according to the selected keys and switches;
• and
• regulator means responsive to the keyboard means and the stop control means for generating the at least one frequency control signal corresponding to the selected combination of voices and keys for varying at least one frequency of at least one voice generated by at least one of the voice generator means in proportion to the number of selected keys and voices.

A method of varying a voice on an electronic musical instrument comprising the steps of:

• activating a plurality of individually activatable input elements for selecting different combinations of voices;
• generating at least one voice signal representative of each selected combination of voices including at least one voice having at least one frequency;
• generating at least one control signal corresponding to each selected combination of voices, whereby the control signal changes in response to changes in the activated input elements;
• varying the at least one frequency of the at least one voice represented by the at least one voice signal in response to the changes in the at least one control signal, and thereby varying the at least one frequency of the at least one voice differently for different combinations of selected voices.

A method of varying a voice on an electronic musical instrument comprising the steps of:

• activating sequentially different pluralities of individually activatable input elements for selecting different combinations of voices;
• generating at least one voice signal representative of the selected different combinations of voices including at least one voice having at least one controllable parameter;
• and
• varying the at least one parameter of the at least one voice represented by the at least one voice signal with a damped oscillatory response when the combination of selected voices changes.

A method of varying a voice on an electronic musical instrument comprising the steps of:

• activating sequentially pluralities of individually activatable input elements for selecting different combinations of voices, with each voice having a pitch corresponding to a note of the musical scale;
• generating at least one voice signal representative of the selected different combinations of voices;
• and
• varying the frequency of at least one voice from the pitch for that voice within a range of frequencies that increases with increasing numbers of voices selected.