An earphone microphone comprising: an insert portion that is adapted to be inserted into an ear of a user; a first microphone attached to a distal end of the insert portion, wherein the first microphone is disposed opposite to an eardrum of the user when the insert portion is inserted into an external auditory canal of the user; two second microphones (17, 18) attached to an external surface of said earphone microphone, said second microphones (17, 18) being exposed and disposed externally of the user's external auditory canal into which the insert portion is inserted; and a signal processor that is configured to add an output signal (S OUT) of the second microphones (17, 18), including frequency components representing sound of 3 kHz or more, to an output signal (S IN) of the first microphone so as to produce a sound signal (S SND) representing a sound of the user; wherein the signal processor includes: a subtracter that is adapted to produce a difference signal (S OUT) between output signals of the two second microphones (17, 18); a delay unit interposed between one of the second microphones (17, 18) and the subtracter, wherein the delay unit is adapted to delay an output signal (S OUT1) of the respective one of the second microphones (17, 18); and an adder that is adapted to add the difference signal (S OUT) to the output signal (S IN) of the first microphone so as to produce the sound signal (S SND) representing the user's sound. an insert portion that is adapted to be inserted into an ear of a user; a first microphone attached to a distal end of the insert portion, wherein the first microphone is disposed opposite to an eardrum of the user when the insert portion is inserted into an external auditory canal of the user; two second microphones (17, 18) attached to an external surface of said earphone microphone, said second microphones (17, 18) being exposed and disposed externally of the user's external auditory canal into which the insert portion is inserted; and a signal processor that is configured to add an output signal (S OUT) of the second microphones (17, 18), including frequency components representing sound of 3 kHz or more, to an output signal (S IN) of the first microphone so as to produce a sound signal (S SND) representing a sound of the user; wherein the signal processor includes: a subtracter that is adapted to produce a difference signal (S OUT) between output signals of the two second microphones (17, 18); a delay unit interposed between one of the second microphones (17, 18) and the subtracter, wherein the delay unit is adapted to delay an output signal (S OUT1) of the respective one of the second microphones (17, 18); and an adder that is adapted to add the difference signal (S OUT) to the output signal (S IN) of the first microphone so as to produce the sound signal (S SND) representing the user's sound. a subtracter that is adapted to produce a difference signal (S OUT) between output signals of the two second microphones (17, 18); a delay unit interposed between one of the second microphones (17, 18) and the subtracter, wherein the delay unit is adapted to delay an output signal (S OUT1) of the respective one of the second microphones (17, 18); and an adder that is adapted to add the difference signal (S OUT) to the output signal (S IN) of the first microphone so as to produce the sound signal (S SND) representing the user's sound.