An apparatus comprising means for: receiving at least two audio signals from a microphone array located within a sound scene; receiving at least one further audio signal associated with at least one sound source from the sound scene; determining at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal, the means for determining at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal being for identifying at least one sub-band of the at least two audio signals, the at least one sub-band is associated with the at least one sound source; and determining a distance estimate from the microphone array to the at least one sound source based on the at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal, wherein the means for determining the distance estimate from the microphone array to the at least one sound source based on the at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal further comprises means for: determining at least one audio sub-band positioning system direction of arrival estimate based on the identified sub-band of the at least two audio signals; determining a variance based on the at least one audio sub-band positioning system direction of arrival estimate; and determining the distance estimate from the microphone array to the at least one sound source based on the determined variance. receiving at least two audio signals from a microphone array located within a sound scene; receiving at least one further audio signal associated with at least one sound source from the sound scene; determining at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal, the means for determining at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal being for identifying at least one sub-band of the at least two audio signals, the at least one sub-band is associated with the at least one sound source; and determining a distance estimate from the microphone array to the at least one sound source based on the at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal, wherein the means for determining the distance estimate from the microphone array to the at least one sound source based on the at least one portion of the at least two audio signals from the microphone array corresponding to the at least one further audio signal further comprises means for: determining at least one audio sub-band positioning system direction of arrival estimate based on the identified sub-band of the at least two audio signals; determining a variance based on the at least one audio sub-band positioning system direction of arrival estimate; and determining the distance estimate from the microphone array to the at least one sound source based on the determined variance. determining at least one audio sub-band positioning system direction of arrival estimate based on the identified sub-band of the at least two audio signals; determining a variance based on the at least one audio sub-band positioning system direction of arrival estimate; and determining the distance estimate from the microphone array to the at least one sound source based on the determined variance.