A method for generating, from an input audio signal, audio signals intended to be provided to a sound rendering system (2, 2'), this sound rendering system comprising a first set of loudspeakers (HP1_1,...,HP1_P) positioned at a reference height, and a second set of loudspeakers (HP2_1,...,HP2_N) positioned at a height greater than the reference height, the loudspeakers of the second set being more directive vertically than the loudspeakers of the first set, this method comprising: - a step of identifying a position (POS) of at least one sound object of the input audio signal; - a step (E30, E40) of generating a plurality of first audio signals (S1_1,...,S1_P) intended to feed the first set of loudspeakers, by applying to the input audio signal: o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the first set; - a step (E60, E70) of generating a plurality of second audio signals (S2_1,...,S2_N) intended to feed the second set of loudspeakers, by applying to the input audio signal: o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the second set; at least one said sound spatialization technique applied during generation of the first and second audio signals being a holophonic technique; and the delays and/or the gains applied during generation of the first and second audio signals being selected such that the combination of first signals rendered by the first set of loudspeakers and second signals rendered by the second set of loudspeakers verifies a sound rendering effect determined at at least one spatial reference position (Pref(E1,E2)) defined for the first and second sets of loudspeakers. - a step of identifying a position (POS) of at least one sound object of the input audio signal; - a step (E30, E40) of generating a plurality of first audio signals (S1_1,...,S1_P) intended to feed the first set of loudspeakers, by applying to the input audio signal: o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the first set; o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the first set; - a step (E60, E70) of generating a plurality of second audio signals (S2_1,...,S2_N) intended to feed the second set of loudspeakers, by applying to the input audio signal: o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the second set; o at least one delay and/or one gain; and o a sound spatialization technique taking into account the identified position of said at least one sound object of the input audio signal and a position of the loudspeakers of the second set;