Asymmetric stereophonic bass compensation

A method of compensating for a reduction in acoustic power of an acoustic signal in a confined space, said acoustic signal produced by an audio system comprising N acoustic transducers, where N is an integer and N≥2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the method comprising the steps of:

• filtering the audio signal to be received by at least two of the N acoustic transducers with a different phase response for each of the at least two acoustic transducers at a frequency having a corresponding wavelength λ=d/(n+½), wherein n is an integer and n≥0 and d is a characteristic separation of two or more of the N acoustic transducers in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δf around said frequency f.

A non-transitory computer-readable medium storing computer-readable instructions that, when executed, cause a processor of an acoustic transducer system to perform steps of a method for reduction in acoustic power of an acoustic signal in a confined space, said acoustic signal produced by an audio system comprising N acoustic transducers, where N is an integer and N≥2, wherein each acoustic transducer is configured to receive an audio signal for a respective channel of the audio system and to generate an acoustic signal therefrom, the steps comprising:

• filtering the audio signal to be received by at least two of the N acoustic transducers with a different phase response for each of the at least two acoustic transducers at a frequency having a corresponding wavelength λ=d/(n+½), wherein n is an integer and n≥0 and d is a characteristic separation of two or more of the N acoustic transducers in the confined space, in order to compensate for a reduction in acoustic power that would otherwise occur over a range of frequencies of width Δf around said frequency f.