A non-transitory computer readable program product, comprising program code instructions for performing, when said non-transitory software program is executed by a computer, a method for processing at least one input audio signal, said method comprising:
- obtaining at least one base audio signal being a copy of said at least one input audio signal;
- generating at least one output audio signal from said at least one base signal, said at least one output audio signal having style features obtained by modifying said at least one base signal so that a distance between at least one base style feature representative of a style of said at least one base signal and at least one reference style feature decreases.