| 摘要 |
<p>The invention provides a head-mounted transmitter/receiver having the function to play music. A transmitter/receiver comprises a first mixer (41) for supplying a transmitter (43) with a mixed signal of an audio signal (M_Sig) output from an MP3 player 8a and a first voice signal (S1_Sig) collected by a speech microphone (2); and a second mixer (42) for supplying speakers (5a, 5b) with a mixed signal of the audio signal (M_Sig) output from the MP3 player (8), a second voice signal (S2_Sig) received by a receiver (44), and a third voice signal collected by external microphones (7a, 7b).</p> |
