Abstract: A method for configuring an electronic device having an equalizer suited for processing a numeric audio signal according to an objective equalization improves the equalization of the numeric audio signal. The equalizer has a transfer function that implements a set of band-pass filters having a constant band-pass and a configurable weight in the transfer function. The method provides a set of objective gains representing the objective equalization, with each objective gain corresponding to a respective frequency. The method also determines values of the weights of the band-pass filters that minimize an error evaluated by comparing the set of objective gains to the transfer function. The set of band-pass filters includes at least one pair of band-pass filters having a common central frequency and distinct band-passes. The method also sets the weights of the band-pass filters to the determined values.

Abstract: A method for configuring an electronic device having an equalizer suited for processing a numeric audio signal according to an objective equalization improves the equalization of the numeric audio signal. The equalizer has a transfer function that implements a set of band-pass filters having a constant band-pass and a configurable weight in the transfer function. The method provides a set of objective gains representing the objective equalization, with each objective gain corresponding to a respective frequency. The method also determines values of the weights of the band-pass filters that minimize an error evaluated by comparing the set of objective gains to the transfer function. The set of band-pass filters includes at least one pair of band-pass filters having a common central frequency and distinct band-passes. The method also sets the weights of the band-pass filters to the determined values.

Abstract: There is described a method of making a linear periodically time varying system shift-invariant, comprising the following steps implemented for each input signal the sampling rate of which has to be converted: —generating a set of polyphase components based on the input signal, —feeding the generated set of polyphase components to the system, and —generating an output signal by performing interleaving, shifting and addition on signals output by the system corresponding to the generated set of polyphase components processed by the system.

Abstract: There is described a method of making a linear periodically time varying system shift-invariant, comprising the following steps implemented for each input signal the sampling rate of which has to be converted: —generating a set of polyphase components based on the input signal, —feeding the generated set of polyphase components to the system, and —generating an output signal by performing interleaving, shifting and addition on signals output by the system corresponding to the generated set of polyphase components processed by the system.