Digital Voice Recorder

Finally I have received my Sony PCM-D50 Digital Voice Recorder bought directly from US. This recorder records voice in Wav format and the sampling rate can up to 96Khz, 24 bits. I hope to use this to create my own bird sound. Please share with me if you have any experience in creating bird sound.

Bird Flying and Playing In Heavy Rain

Is anybody wonder what happen to the bird during heavy rain? Fly to somewhere else with no rain or back to BH.

I had captured this video tape near my BH. A lot of bird enjoy flying around the tree. Seem like having their breakfast.

Additional External Amplifier for Hexagon Tweeter

All the while i have been using 1 external Amplifier to drive my External tweeters and Hexagon tweeters. The left channel output of Amp is connected to External Tweeters and right channel output is connected to Hexagon Tweeters. By doing so, I can have 2 different sound playing on same amplifier. 1 sound is external sound and another sound is playing sound.

However, after reading some blog as well as comment from my friend, is good to play the playing sound from 5.30pm to 7.30pm when the birds are about to come back to their bird house. By doing so, we can extend the life of the playing sound. Birds would not get bored easily. So I bought another amplifier just to play the playing sound or another external sound from 5.30pm to 7.30pm.

BH After 11 Weeks

After 11 weeks of operation, found more bird shits and 3 bird nest marks. But the number of birds do not seem to be a lot.

Temp and Humidity Chart Nov Vs Dec

Below is the Temp and Humidity chart from 15-Nov to 6-Dec. The average Temp = 28.8 degC and average Humidity = 77.7%.
During the 6-Dec visit, I had adjusted the humidity set point from 87% to 90%. Below is the temp and humidity chart from 6-Dec to 10-Jan-09. The average Temp drop to 28degC and average Humidity = 77%. The Temp is very stable now. But the humidity drop which is due to the sudden drop in humidity from 18-Dec to 25-Dec. No idea why.

If you notice that the humidity curve like saw-tooth shape. This is because the humidifier is run only from 7am to 6pm. So the humidity will slowly increase from 7am onward till 8pm and start dropping from 8pm onward till 7am. This is to make sure that birds have peace night and not to be frighten by humidifier.

Btw, there is some offset between the data logger and external humidity meter reading. When the humidity meter show 86%, the data logger reading only show 81%. So the actual humidity of my BH between 80% to 90% and temp = 28degC which is good for BH.