In audio and music production adjectives are often used to describe the perception of the spectral qualities of sound instead of frequency range and gain. Do engineers relate a word to the same frequency range? In this study, two experiments were conducted to investigate what frequency ranges audio engineer associate with the words thick, nasal, sharp and airy. The first experiment involved five engineers and had the purpose of creating filters to be implemented on audio samples later used in a larger experiment. 20 audio engineers participated in the larger test were they listened to samples of music that had been filtered in four ways. The task was to choose the filter that they associated most with a given word. To make sure that the answers not happened by chance, the data was treated with a chi square goodness of fit test. The results were that a majority of the listeners had the same association of the words thick, nasal and airy. There was less agreement on the word sharp.