Live House意指提供音響燈光硬體設備之展演場所，供音樂藝文創作者現場演出。相較於歌劇院、音樂廳，Live House表演類型多元，近年來成為許多年輕族群聆聽音樂的場所。空間特性、電聲系統都會影響Live House的室內聲場，然而目前對於Live House的空間聲場較少科學、系統性的相關研究。由於音樂類型、樂器、參與者的不同，傳統建築聲學設計無法套用在Live House上。經營者缺乏空間改善的相關資訊，導致經營者多著重在音響部分，投資在空間裝修上之意願較小。
本研究以觀眾人數兩百人以下的小型Live House為對象，探討在電聲條件下，空間特性對於Live House聲場的影響。首先藉由現場量測客觀聲學參數，了解空間之聲學性能、缺陷，同時利用主觀問卷調查觀眾、樂手對於此空間聲場的評價。使用聲學模擬軟體EASE模擬空間現況，與實測值進行比較，確認模擬值的精度與可行性後提出相關空間改善策略，並模擬執行策略後結果。最後針對改善設策略進行綜合分析，期許後續建築聲學設計者執行小空間電聲聲場改善時，本研究能作為參考。
實測結果顯示，舞台、觀眾席在低頻迴響時間過長，代表低頻的反射音過多，造成清晰度降低、聽感不佳; 除此之外低頻與中高頻的迴響時間差異過大，易造成低頻音遮蔽高頻音之現象，較不適合節奏快速、低頻音豐富的搖滾樂表演。在本研究所提出的建築相關改善策略中，所選用之低頻吸音材對於抑制低頻反射音有良好之效果; 在擬定改善策略中，側牆裝修40%加天花70%在抑制低頻迴響時間上最為明顯; 若依據成本、裝修率等綜合考量下，建議採取側牆裝修率70%作為後續實場裝修依據。

Even though going to the live performance held in the rock venues has been more and more popular in youth, the quality of acoustic field in these venues seem not to be validated. For example, these venues usually are reuse of existing spaces and have no professional acoustical decoration in the space which might lead to potentially acoustical problem. In order to realize and evaluated the acoustical performance of venues for rock music, a field study in a small rock music venue in Kaohsiung was carried out. We used field measurement and subjective evaluation to figure out the sound field problem. The objective acoustic parameters were measured at the field. Then, we used acoustics simulation software “EASE” to propose a decorated improvement strategy.
The field measurement results showed that the reverberation times on the stage and audience area was too long at the low frequency. There were too many reflected sounds in the room which lead to poor clarity and listening quality of musicians and audiences. In addition, the difference between the low frequency and high frequency reverberation time is too large, and this situation usually causes high frequency sound being masked by low frequency sound. According to the results, the venue was evaluated unsuitable for the rock music with fast rhythm, loud and continuous low frequency sound. Furthermore, the results of simulation showed high correlation with field measurement, which can be used for propose the acoustical improvement strategies. In the acoustical strategy, the selected low-frequency absorber had a good effect on absorbing low-frequency reflection sounds. If based on the performance of low-frequency absorbing, it is recommended to Case4A7B (decoration of 40%side wall, 70%ceiling). If based on the performance of decoration and cost, it is recommended to Case7A (decoration of 70% side wall).

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