The effectiveness of a good quality swiftlet's sound (1)

With the help of the computer, we can easily edit swiftlet's sound and produce our own sound. But many misunderstanding the "inside" meaning of the swiftlet's sounds. To produce a good quality sounds is not easy as we all thought.

Firstly, we need to records a clear good sound from a successful birdhouse. Secondly, we must have a good ear to differentiate the "content or meaning" of a swiftlet language to a certain level (i.e. "I am hungry" and "hungry am I" can make the birds confuse). Thirdly, combine the goodness together by editing yet maintain the quality of the original sounds. The final stage is to test the sounds at different location and the final result was records and noted for final editing. It take time to do all this.... sound simple yet not so easy.