Device impairment detection

A media playback system comprising:

• a playback device comprising a microphone;
• a communications interface;
• at least one processor;
• and
• at least one non-transitory computer-readable medium comprising program instructions that are executable by the at least one processor such that the media playback system is configured to perform functions comprising:
• receiving data indicating a response of a listening environment to audio output of the playback device as captured by the microphone;
• determining an input vector for a neural network, wherein determining the input vector comprises projecting a response vector that represents the response onto a principle component matrix representing variance caused by one or more environmental conditions;
• providing the determined input vector to the neural network, the neural network including an output layer comprising neurons that correspond to respective impairments;
• determining that the input vector caused one or more neurons of the neural network to fire such that the neural network indicates that a particular impairment is present;
• and
• sending, via the communications interface to a network device, data indicating that the particular impairment is present.

A tangible, non-transitory computer-readable medium comprising program instructions that are executable by at least one processor such that a media playback system is configured to perform functions comprising:

• receiving data indicating a response of a listening environment to audio output of a playback device of the media playback system as captured by a microphone of the playback device;
• determining an input vector for a neural network, wherein determining the input vector comprises projecting a response vector that represents the response onto a principle component matrix representing variance caused by one or more environmental conditions;
• providing the determined input vector to the neural network, the neural network including an output layer comprising neurons that correspond to respective impairments;
• determining that the input vector caused one or more neurons of the neural network to fire such that the neural network indicates that a particular impairment is present;
• and
• sending, via a communications interface to a network device, data indicating that the particular impairment is present.