Electronic apparatus and controlling method thereof

An electronic apparatus comprising:

• a memory configured to store at least one instruction;
• and
• at least one processor configured to execute the at least one instruction to:
• divide audio data into a plurality of sections of audio data based on a plurality of time periods having a plurality of overlapping regions,
• acquire an audio feature from each of the plurality of sections,
• identify a first audio source and a second audio source in each of the plurality of sections based on the audio feature, and
• acquire first audio data corresponding to the first audio source and second audio data corresponding to the second audio source from the audio data.