Apparatus and method for generating additional sound on the basis of sound signal

An apparatus for generating an additional sound signal on the basis of an input sound signal, said apparatus comprising:

• a data supply section adapted to supply scale note pitch data varying over time;
• an input device adapted to receive control information for controlling a pitch of an additional sound;
• and
• a processor device coupled with said data supply section and said input device, said processor device being adapted to:
• obtain pitch information of the input sound signal;
• obtain, on the basis of at least the control information received via said input device, scale note pitch information of an additional sound to be generated;
• modify, in accordance with a difference between a pitch indicated by the pitch information of the input sound signal and a pitch indicated by the scale note pitch data supplied by said data supply section, a pitch indicated by the scale note pitch information of the additional sound to be generated, and
• generate an additional sound signal with the modified pitch.

A method for generating an additional sound signal on the basis of an input sound signal, said method comprising the steps of:

• obtaining pitch information of the input sound signal;
• receiving control information for controlling a pitch of an additional sound;
• obtaining, on the basis of at least the control information received via said step of receiving, scale note pitch information of an additional sound to be generated;
• determining a scale note pitch nearest to a pitch indicated by the pitch information of the input sound signal;
• modifying, in accordance with a difference between the determined scale note pitch and the pitch of the input sound signal, a pitch indicated by the scale note pitch information of the additional sound to be generated;
• and
• generating an additional sound signal with the modified pitch.

A method for generating an additional sound signal on the basis of an input sound signal, said method comprising the steps of:

• obtaining pitch information of the input sound signal;
• supplying scale note pitch data varying over time;
• receiving control information for controlling a pitch of an additional sound;
• obtaining, on the basis of at least the control information received via said step of receiving, scale note pitch information of an additional sound to be generated;
• modifying, in accordance with a difference between a pitch indicated by the pitch information of the input sound signal and a scale note pitch indicated by the scale note pitch data supplied via said step of supplying, a pitch indicated by the scale note pitch information of the additional sound to be generated;
• and
• generating an additional sound signal with the modified pitch.

A machine-readable storage medium containing a group of instructions to cause said machine to implement a method for generating an additional sound signal on the basis of an input sound signal, said method comprising the steps of:

• obtaining pitch information of the input sound signal;
• receiving control information for controlling a pitch of an additional sound;
• obtaining, on the basis of at least the control information received via said step of receiving, scale note pitch information of an additional sound to be generated;
• determining a scale note pitch nearest to a pitch indicated by the pitch information of the input sound signal;
• modifying, in accordance with a difference between the determined scale note pitch and the pitch of the input sound signal, a pitch indicated by the scale note pitch information of the additional sound to be generated, and
• generating an additional sound signal with the modified pitch.

A machine-readable storage medium containing a group of instructions to cause said machine to implement a method for generating an additional sound signal on the basis of an input sound signal, said method comprising the steps of:

• obtaining pitch information of the input sound signal;
• supplying scale note pitch data varying over time;
• receiving control information for controlling a pitch of an additional sound;
• obtaining, on the basis of at least the control information received via said step of receiving, scale note pitch information of an additional sound to be generated;
• modifying, in accordance with a difference between a pitch indicated by the pitch information of the input sound signal and a scale note pitch indicated by the scale note pitch data supplied via said step of supplying, a pitch indicated by the scale note pitch information of the additional sound to be generated;
• and
• generating an additional sound signal with the modified pitch.