| 摘要 |
PURPOSE:To prevent a speaker reproduced sound and a sound from circumference from being absorbed by the microphone and to distinctively and clearly listen to a singer's voice and an accompaniment sound by providing a sound eliminating mechanism, in which the microphone is incorporated, with a mouth pad which covers the periphery of a mouse so that the voice of the practicing person does not leak out and no external sound is absorbed by the microphone. CONSTITUTION:For a practice in, for example, KARAOKE, when the mouth pad 4 is positioned on the mouth and a word is spoken, the spoken voice is absorbed by the sound absorbing layer 6 of the mouth pad without leaking out and further passes through the sound eliminating mechanism 13. Consequently, the practicing person can not listen to his or her voice directly in the ears, but can clearly listen to a sound outputted from the speaker through the microphone 9 and the accompaniment sound of the speaker. Further, the reproduced sound from the speaker and other noises are all cut off by the mouth pad 4 and never absorbed by the microphone 9, so no howling phenomenon is caused. At the time of breathing, the breath operates on an alarm unit 14, which generates a signal, so the breathing can easily be sensed. |
