EN
The threshold of discrimination of a pure tone probe in the background of a one ERB wide masker composed of inharmonic partials was investigated. The experiment was participated with a large group of 35 listeners. Very consistent results were observed across two independent variables: the number of partials (from three to five) and their amplitudes being equal or unequal. For all but one of the conditions, the threshold obtained was between -4 and -5 dB. The threshold slightly decreased with increasing number of partials and was slightly lower when their amplitudes were even.