Dynamic debuzzer for speakers

An apparatus comprising,

• a source to generate a signal having an audio content;
• a spectrum analyzer to determine a first value representing spectral density of the audio content at a first resonance frequency, wherein the first resonance frequency is associated with a mechanical motion of (i) a speaker diaphragm or (ii) a mechanical support of the speaker diaphragm, the spectrum analyzer is further to determine a second value representing spectral density of the audio content at a second resonance frequency, wherein the second resonance frequency is associated with a port of a speaker assembly;
• and
• a notch filter to modify the signal by limiting spectral density of the audio content at the first resonance frequency in view of the first value and the second value.

A method to reduce buzzing in a speaker, the method comprising:

• obtaining a signal having an audio content;
• determining a first value representing spectral density of the audio content at a first resonance frequency, wherein the first resonance frequency is associated with a mechanical motion of (i) a speaker diaphragm or (ii) a mechanical support of the speaker diaphragm;
• determining a second value representing spectral density of the audio content at a second resonance frequency, wherein the second resonance frequency is associated with a port of a speaker assembly;
• determining, responsive to the first value and the second value, that the signal is to produce buzzing of the speaker at the second resonance frequency;
• producing a modified signal by limiting spectral density of the audio content at the first resonance frequency to a degree determined responsive to the first value and the second value;
• and
• providing the modified signal to the speaker.