A method for a computing device, comprising: as the computing device is moving within an environment of a playback device, capturing, via a microphone of the computing device, one or more calibration sounds played by the playback device, wherein each of the one or more calibration sounds includes a sweep through frequencies of a calibration frequency range; generating data representing the one or more calibration sounds; identifying one or more sections of the data corresponding to a respective calibration sound of the one or more calibration sounds; determining, using the one or more sections of the data, a frequency response of the playback device over the calibration frequency range, wherein the frequency response of the playback device characterizes audio playback by the playback device as influenced by acoustic characteristics of the environment; determining one or more parameters of an audio processing algorithm based on the frequency response of the playback device and a target frequency response; and sending, to the playback device, the one or more parameters of the audio processing algorithm; wherein a given calibration sound of the one or more calibration sounds comprises: a first component that includes calibration noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency; and a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range, wherein the given calibration sound is separated in time from a subsequent calibration sound of the one or more calibration sounds by a guard band comprising the first component, and wherein the guard band does not include the second component. as the computing device is moving within an environment of a playback device, capturing, via a microphone of the computing device, one or more calibration sounds played by the playback device, wherein each of the one or more calibration sounds includes a sweep through frequencies of a calibration frequency range; generating data representing the one or more calibration sounds; identifying one or more sections of the data corresponding to a respective calibration sound of the one or more calibration sounds; determining, using the one or more sections of the data, a frequency response of the playback device over the calibration frequency range, wherein the frequency response of the playback device characterizes audio playback by the playback device as influenced by acoustic characteristics of the environment; determining one or more parameters of an audio processing algorithm based on the frequency response of the playback device and a target frequency response; and sending, to the playback device, the one or more parameters of the audio processing algorithm; wherein a given calibration sound of the one or more calibration sounds comprises: a first component that includes calibration noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency; and a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range, a first component that includes calibration noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency; and a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range, wherein the given calibration sound is separated in time from a subsequent calibration sound of the one or more calibration sounds by a guard band comprising the first component, and wherein the guard band does not include the second component.