A method for dynamic sound adjustment in an audio system comprising two or more acoustic transducers each radiating a respective acoustic output ( x i ( n)), the method comprising: receiving, at one or more processing devices, an input signal representing audio captured using a microphone, the input signal comprising a first portion that represents the acoustic outputs from the two or more acoustic transducers, and a second portion that represents a noise component ( w ( n)); receiving, at the one or more processing devices, two or more source signals representing the acoustic outputs from the two or more acoustic transducers, generating, by the one or more processing devices based on time segments of the input signal and of the two or more source signals, a frequency domain representation, wherein the frequency domain representation comprises a cross-spectral density matrix which includes, for each frequency bin: (i) values that each represent a level of coherence between acoustic outputs from a pair of the two or more acoustic transducers, (ii) values that each represent a level of coherence between an acoustic output of a particular acoustic transducer of the two or more acoustic transducers and the audio captured using the microphone, and (iii) values that each represent the power of the acoustic output for the particular frequency bin, of an individual acoustic transducer of the two or more acoustic transducers; iteratively modifying, by the one or more processing devices, the frequency domain representation, said iteratively modifying the frequency domain representation comprising executing a matrix diagonalization process on the cross-spectral density matrix, such that the modified frequency domain representation represents a portion of the input signal in which effects due to the first portion are substantially reduced; determining, from the modified frequency domain representation, an estimate of a power spectral density of the noise; and generating a control signal configured to adjust one or more gains of the acoustic transducers corresponding one or more frequency ranges, the control signal being generated based on the estimate of the power spectral density of the noise, wherein the one or more gains of the acoustic transducers are adjusted to increase with an increase in the estimate of the power spectral density of the noise, and decrease with a decrease in the estimate of the power spectral density. receiving, at one or more processing devices, an input signal representing audio captured using a microphone, the input signal comprising a first portion that represents the acoustic outputs from the two or more acoustic transducers, and a second portion that represents a noise component ( w ( n)); receiving, at the one or more processing devices, two or more source signals representing the acoustic outputs from the two or more acoustic transducers, generating, by the one or more processing devices based on time segments of the input signal and of the two or more source signals, a frequency domain representation, wherein the frequency domain representation comprises a cross-spectral density matrix which includes, for each frequency bin: (i) values that each represent a level of coherence between acoustic outputs from a pair of the two or more acoustic transducers, (ii) values that each represent a level of coherence between an acoustic output of a particular acoustic transducer of the two or more acoustic transducers and the audio captured using the microphone, and (iii) values that each represent the power of the acoustic output for the particular frequency bin, of an individual acoustic transducer of the two or more acoustic transducers; (i) values that each represent a level of coherence between acoustic outputs from a pair of the two or more acoustic transducers, (ii) values that each represent a level of coherence between an acoustic output of a particular acoustic transducer of the two or more acoustic transducers and the audio captured using the microphone, and (iii) values that each represent the power of the acoustic output for the particular frequency bin, of an individual acoustic transducer of the two or more acoustic transducers; iteratively modifying, by the one or more processing devices, the frequency domain representation, said iteratively modifying the frequency domain representation comprising executing a matrix diagonalization process on the cross-spectral density matrix, such that the modified frequency domain representation represents a portion of the input signal in which effects due to the first portion are substantially reduced; determining, from the modified frequency domain representation, an estimate of a power spectral density of the noise; and generating a control signal configured to adjust one or more gains of the acoustic transducers corresponding one or more frequency ranges, the control signal being generated based on the estimate of the power spectral density of the noise, wherein the one or more gains of the acoustic transducers are adjusted to increase with an increase in the estimate of the power spectral density of the noise, and decrease with a decrease in the estimate of the power spectral density.