An apparatus for tracking locations of a plurality of sound sources, the apparatus comprising: a microphone array comprising a plurality of linearly disposed microphones; and an azimuth candidate extractor arranged to extract azimuth candidates at respective predetermined frames of respective blocks of microphone signals received from the microphone array, each block comprising a plurality of predetermined frames; and wherein the azimuth candidate extractor comprises: a sound source feature extractor arranged to extract sound source features required for tracking locations of sound sources at respective frames from microphone signals received from the microphone array, wherein each sound source feature is a time difference of arrival; an azimuth candidate group extractor arranged to extract the azimuth candidates, based on the sound source features extracted by the sound source feature extractor, and to extract a plurality of azimuth candidate groups, each azimuth candidate group including azimuth candidates having the same azimuth, from the extracted azimuth candidates; and an azimuth candidate verifier arranged to perform beamforming on the azimuth candidate groups extracted by the azimuth candidate group extractor, to select the plurality of azimuth candidate groups having a predetermined value or higher of signal intensity from the azimuth candidate groups obtained as a result of the beamforming and to predict locations of actual sound sources based on the selected azimuth candidate groups, wherein the beamforming is performed on each block. a microphone array comprising a plurality of linearly disposed microphones; and an azimuth candidate extractor arranged to extract azimuth candidates at respective predetermined frames of respective blocks of microphone signals received from the microphone array, each block comprising a plurality of predetermined frames; and wherein the azimuth candidate extractor comprises: a sound source feature extractor arranged to extract sound source features required for tracking locations of sound sources at respective frames from microphone signals received from the microphone array, wherein each sound source feature is a time difference of arrival; an azimuth candidate group extractor arranged to extract the azimuth candidates, based on the sound source features extracted by the sound source feature extractor, and to extract a plurality of azimuth candidate groups, each azimuth candidate group including azimuth candidates having the same azimuth, from the extracted azimuth candidates; and an azimuth candidate verifier arranged to perform beamforming on the azimuth candidate groups extracted by the azimuth candidate group extractor, to select the plurality of azimuth candidate groups having a predetermined value or higher of signal intensity from the azimuth candidate groups obtained as a result of the beamforming and to predict locations of actual sound sources based on the selected azimuth candidate groups, wherein the beamforming is performed on each block. a sound source feature extractor arranged to extract sound source features required for tracking locations of sound sources at respective frames from microphone signals received from the microphone array, wherein each sound source feature is a time difference of arrival; an azimuth candidate group extractor arranged to extract the azimuth candidates, based on the sound source features extracted by the sound source feature extractor, and to extract a plurality of azimuth candidate groups, each azimuth candidate group including azimuth candidates having the same azimuth, from the extracted azimuth candidates; and an azimuth candidate verifier arranged to perform beamforming on the azimuth candidate groups extracted by the azimuth candidate group extractor, to select the plurality of azimuth candidate groups having a predetermined value or higher of signal intensity from the azimuth candidate groups obtained as a result of the beamforming and to predict locations of actual sound sources based on the selected azimuth candidate groups, wherein the beamforming is performed on each block.