Abstract: Methods for operating a digital music server with adaptable equalization based on an identification of key instruments within an audio recording and with adaptable audio output based on an identification of one or more speakers in communication with the digital music server are described. In some embodiments, the digital music server may determine an audio category associated with the audio recording, acquire an audio enhancement filter associated with the audio category, generate an audio signal from the audio recording, identify one or more key instruments within the audio signal, update the audio enhancement filter based on the one or more key instruments, and generate an enhanced audio signal using the audio enhancement filter. The audio enhancement filter may be combined with a speaker compensation filter in order to compensate for variations in the frequency response of a particular speaker due to temperature and speaker lifetime.

Abstract: Methods for operating a digital music server with adaptable equalization based on an identification of key instruments within an audio recording and with adaptable audio output based on an identification of one or more speakers in communication with the digital music server are described. In some embodiments, the digital music server may determine an audio category associated with the audio recording, acquire an audio enhancement filter associated with the audio category, generate an audio signal from the audio recording, identify one or more key instruments within the audio signal, update the audio enhancement filter based on the one or more key instruments, and generate an enhanced audio signal using the audio enhancement filter. The audio enhancement filter may be combined with a speaker compensation filter in order to compensate for variations in the frequency response of a particular speaker due to temperature and speaker lifetime.