1. An equalizer controller comprising: an audio classifier for continuously classifying an audio signal so as to identify the audio type of the audio signal; and an adjusting unit for adjusting an equalizer in a continuous manner based on a confidence value of the audio type as identified, wherein the audio classifier is configured to classify the audio signal into multiple audio types with corresponding confidence values, and the adjusting unit is configured to consider at least some of the multiple audio types through weighting the confidence values of the multiple audio types based on the importance of the multiple audio types.