探索「聲音」的世界，從生活趣談到專業系統設計知識。
Even though the noise is coming from the speaker, it does not necessarily mean that the speaker itself is causing the problem. To identify what is causing the problem, take your PA system apart piece-by-piece and wire-by-wire.Here are some simple checks you may want to do so that you can isolate the...
When listening to music from a radio or stereo system, have you ever experienced the tone changing as you move? It is because the spread of sound from a speaker differs from frequency to frequency. This is known as the Doppler effect.High-frequency sounds from conventional speakers spread narrowly a...
由於地板、牆壁與天花板多為堅硬且平坦的表面，學校體育館極易產生聲音反射，進而造成明顯的回音與混響，因此被視為聲學設計上最具挑戰性的建築之一。 當聽不清說話內容時，專注力往往會受到影響。而體育館經常承辦多元活動──從體育課程、典禮儀式到嘉賓演講，營造清晰的聽覺體驗顯得格外重要。那麼，該如何有效提升聲音的清晰度呢？以下是幾項常見的改善方法：牆板吸音牆板通常安裝於牆面，透過吸收聲波來降低回音與混響，有效避免聲音在牆壁間持續反射。吸音吊掛板/天花吸音板將吸音吊掛板/ 天花吸音板安裝於天花板，可有效吸收聲音，達到與吸音牆板相近的效果。線陣揚聲器使用線陣揚聲器是減少聲音反射的常見方法。其單元經過...
