Methods and systems for equalisation

A method of equalising a signal, comprising:

• determining a discrete Fourier transform for the signal;
• determine a median value for each frequency bin of the discrete Fourier transform;
• smoothing the median values over a frequency range of the discrete Fourier transform;
• inverting the smoothed median values;
• and
• applying a weight to each frequency bin of the discrete Fourier transform based on a corresponding one of the inverted smooth median values.

A system for equalising a signal derived from an input device, the system comprising:

• an input for receiving the signal;
• one or more processors configured to:
• apply an order-statistic filter to the signal in the frequency domain to generate a statistically filtered audio signal;
• equalise the signal based on the statistically filtered signal to generate an equalised signal.

A non-transitory computer readable storage medium having computer-executable instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform a method of equalising a signal derived from an input device, the method comprising:

• receiving the signal;
• applying an order-statistic filter to the signal in the frequency domain to generate a statistically filtered signal;
• and
• equalising the received signal based on the statistically filtered signal to generate an equalised signal.