为什么用中文书写？ Why we are writting in Chinese?

因为马来西亚90+%的燕屋业者都是华人，所以我们决定暂时以华文为主要的媒介语，如果需要其它语言的翻译或更详细的解释，我们也一样可以提供。

We are writing in Chinese because most of the swiftlet farmers in Malaysia are Chinese. If you have difficulty in understanding, or you need further explanations in other languages, please feel free to ask for translation.

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Tuesday, February 8, 2011

声音被天气和风向的影响

燕子声必须要比较接近真的燕子叫声，才可以比较有效的吸引燕子居住。
最近有一些读者问我，是否需要把六角声倾斜一边？ 
我说，六角声如果倾斜就不能达到六角声的效果，把声音播放到四面八方，而且也无法去远。
不但如此，扬声器如果倾斜向上，就会把雨水累积在扬声器内，导致扬声器损坏。这个包括入口洞扬声器的装置。所以，不必把您的扬声器调到非常高，声音一样可以播放出去高空。







































































      
红色的线条是热空气，黄色是普通气候，蓝色是冷空气

如果风向顺声音播放的方向，声音将会去更远


如果声音逆风向，声音将会播放比较短




Posted by 金丝燕农场 Swiftlet Farming at 6:43 PM

1 comment:

  1. EugeneFebruary 10, 2011 at 10:31 AM

    Good sharing, thank you! Think you are the first blogger to mention this. Is there any reference to this theory? What you say is quite true. Density of air determine the sound wave (long or short) ie distance etc. So it changes every day, within time of day. Understand the theory and put it practice will reduce noise to the public and increase clarity and travel distance. We need more studies, article, formula, facts & figures on this issue. Once again, well done, you just started an interesting topic!

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