1. A mobile interpretation terminal of an initiating party, comprising: a network interface configured to communicate with a mobile interpretation terminal of an other party; a speech recognizer configured to recognize an uttered sentence from a speech signal of the initiating party; a translation module configured to translate the sentence recognized by the speech recognizer into an interpretation language; and a controller configured to specify the interpretation language and to instruct the network interface to transmit the translated sentence to the interpretation terminal of the other party, wherein the speech recognizer is configured to detect noise from the speech signal of the initiating party, and to perform speech recognition on the speech signal from which the noise is removed, and wherein the speech recognizer is configured to compare the speech signal mixed with the noise from the initiating party with a noise signal transmitted from the interpretation terminal of the other party to detect a matching portion between the speech signal and the noise signal as the noise.