| 摘要 |
PURPOSE:To remove a secular standing wave, etc. due to structure of a room and to set to the most agreeable state to hear, by setting a sound speaker and a sound absorbing box to the same plate in which they are reversed in phase. CONSTITUTION:The speaker 1 is installed to the tip of the pipe. It is divided into the sound absorbing pipe 3, the speaker part 4 from the partition wall, and the resonant part pipe 5, by the sound field, and its length is adjusted optionally. According to such a constitution, a natural standing wave, etc. due to structure of a room is removed, and the sound speaker and the sound absorbing box are set to the same place and in which they are reversed in phase so that they are set to the most agreeable state to hear. |
