An apparatus comprising: a wireless receiver configured to receive captured audio signals from a plurality of mobile devices located within a zone of a plurality of zones of a venue , the mobile devices being assigned to the plurality of zones of the venue based on their respective locations within the venue , the captured audio signals determined by audio capture devices of the respective mobile devices in response to generation of test audio generated by speakers of the venue reproducing a test signal , at least one of the plurality of zones including at least two mobile devices , wherein each of the captured audio signals includes a respective zone designation indicative of which of the plurality of zones of the venue within which the respective captured audio signal was captured; and an audio filtering device configured to compare each of the captured audio signals with the test signal to determine which captured audio signals include the test signal ; combine only the captured audio signals identified as including the test signal into zone audio data ; determine a usability score indicative of a number of captured audio signals combined into the zone audio data, the usability scores usable by the audio filtering device to determine reliability of the contributions of the captured audio signals to the zone audio data ; associate the zone audio data with the usability score; and send the zone audio data to a sound processor configured to determine equalization settings for the zone based on the captured audio signals and the test signal . receive captured audio signals from a plurality of mobile devices located within a zone of a plurality of zones of a venue , the mobile devices being assigned to the plurality of zones of the venue based on their respective locations within the venue , the captured audio signals determined by audio capture devices of the respective mobile devices in response to generation of test audio generated by speakers of the venue reproducing a test signal , at least one of the plurality of zones including at least two mobile devices , wherein each of the captured audio signals includes a respective zone designation indicative of which of the plurality of zones of the venue within which the respective captured audio signal was captured; and an audio filtering device configured to compare each of the captured audio signals with the test signal to determine which captured audio signals include the test signal ; combine only the captured audio signals identified as including the test signal into zone audio data ; determine a usability score indicative of a number of captured audio signals combined into the zone audio data, the usability scores usable by the audio filtering device to determine reliability of the contributions of the captured audio signals to the zone audio data ; associate the zone audio data with the usability score; and send the zone audio data to a sound processor configured to determine equalization settings for the zone based on the captured audio signals and the test signal . compare each of the captured audio signals with the test signal to determine which captured audio signals include the test signal ; combine only the captured audio signals identified as including the test signal into zone audio data ; determine a usability score indicative of a number of captured audio signals combined into the zone audio data, the usability scores usable by the audio filtering device to determine reliability of the contributions of the captured audio signals to the zone audio data ; associate the zone audio data with the usability score; and send the zone audio data to a sound processor configured to determine equalization settings for the zone based on the captured audio signals and the test signal . <EOS>