Headphone with microphones that processes external sound pickup by the microphones and inputs external source sound signal

A headphone comprising:

• a pair of earphone units each including a speaker and a plurality of microphones arranged at a back side of the speaker in a given pattern and through which external sounds are picked up;
• a directional sound pickup signal generator configured to generate a plurality of sound pickup signals each having a given directivity, using a plurality of signals output from the plurality of microphones;
• an external source sound signal generator through which an external source sound signal from an external source is input;
• and
• a sound emission signal generator configured to:
• receive a designation of a bearing;
• select at least one sound pickup signal from the plurality of sound pickup signals based on the received bearing;
• generate an individual bearing sound pickup signal having a directivity corresponding to the received bearing using the selected sound pickup signal;
• combine the individual bearing sound pickup signal and the external source sound signal to generate sound emission signals to be input to the speakers of the earphone units.