How to differentiate Internal vs External Sounds

sfchung — Sat, 15 Jan 2011 19:14:37 +0800

Hi folks,

I have been lurking around this forum for years. Perhaps right where V1 just started. Unfortunately I didn't have the fortune to be able to start a BH yet then and so kept a very low profile. However, things have changed and I am on the verge of starting a BH soon in Sarikei,Sarawak on a plot of agriculture land not too far from town. Will be doing the bird call test when I go back for CNY although my sis and sis-in-law have seen the area and saw a number of BHses around the area and the birds are rather visible too.

I must have listen to tons of swiftlet sounds (samples off the net) but to date, I still find it difficult to postively identify whether it is an external or internal sound. Baby chicks sound are probably more distinctive but the others I am not too sure. There are categories of sounds I believe for eg:

Playing
Warning
Fighting
Mating
Duress/stress/in pain
etc

Is there a way to classify these sounds accordingly? Perhaps there are some traits to look out for? A library of sounds perhaps? I have seen on the net claims for sounds that supposedly fit for use both internally and externally. I have purchased 4 different external calling sounds CD from Ekawalet and tried to "benchmark" against ambiguous sounds ( those not stated internal or external) in an attempt to spot similar traits of external sound. Not very confident at all even after so many hrs of listening!

2ndly I am in need to come out quickly with a bird call testing gadget. Nesttech in JB selling for abt Rm800 and I dont think I want to spend that kind of money at the moment. The plot of land is not accessible by car currently so the idea of playing the car stereo is out. Will a stereo portable set be sufficiently loud to do the test? Most bird sounds that I have is quite soft when I played them off the home hifi. The louder ones are usually heavily distorted/clipped. Initially I thought of getting one of those china made 12V Class T amp, wrapped some rechargeable batteries around it and stick in a tweeter or 2 and I'd have a something usable. But I think time is not on my side at the moment. Any suggestions?

I probably will need further advice and tips as I go along but so far I am very touched by the levels of generosity seen in this forum.

And please no sales call to any consultants out there. Don't call me, I'll call you. They are everywhere I tell you!.

Regards,
Eric

Design of multi story farmhouse

sfchung — Sun, 04 Nov 2007 21:08:52 +0800

Would like to seek some enlightenment on house design. I bought Dr Chris Lim book but the info is rather limited on house design. My question is:

a) If you have a multi storey farm house, do you have one single entrance hole or do you have one hole for each storey?
b) if you only have one entrance for a multistorey farmhouse, how do you connect internally the various storeys together? Via staircases or through a central air shaft that connects all the floors? The birds will find their way around the building? And I presume you only have one single roving area then with the other floors being nesting areas?

Hopefully forumers can shed some light on this or share some design tips.

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How to differentiate Internal vs External Sounds

Design of multi story farmhouse