Cergau, you are real kind in always updating us on the latest farming news...tqtq

Regarding this noise issue, anybody here using ultrasonic amplifier that emit soudless external sound (only wave) so that we wont get saman for disturbing those "mata merah" neighbour?

how was the effect? costing?

You are welcome.
I occasionally ask for kindness in return in the form of cash or nest.
The next one due likely the week after next as Cabinet will decide on the removal of subsidies.
The news are not meant for information only.
They are meant for your action if you so desire.
You have and may exercise the democratic right not to defend your investment.

As for the ultrasonic amplifier......
From recollection, it was previously shared.
Yes, there was no sound, from both the tweeters and the BH.
I emphasise....silence in the BH
The neighbour had a smile and the owner had the tear filled red eyes.
.......................................
The adventurous BH owner was last heard donating the ultrasonic amplifier to the Navy for submarine duty.....incase, sonar not included.
If not used as spare in the submarine it may be useful for imitating mating calls of the blue whales...with a penchant for politicians.

Sunday May 23, 2010
Swiftlet issue to Cabinet

SITIAWAN: Guidelines to regulate the country's swiftlet farming industry will soon be tabled for approval at Cabinet.

Housing and Local Government Minister Datuk Seri Kong Cho Ha said that the Swiftlet Industry Guidelines would cover all aspects of the sector, from licensing to exporting.

Kong, who is also Lumut MP, said that the guidelines would also cover downstream industries, restrictions against swiftlet farming in heritage buildings, hygiene and its impact on the public.

“We are finalising the details and they will be tabled soon,” Kong told reporters after handing out aid to his constituents here yesterday.

He said that the guidelines would be drawn up jointly by his ministry and the Agriculture and Agro-Based Industry and Natural Resources and Environment ministries, with input from both the Health and Information, Communication and Culture ministries.

Kong also said that all state authorities had been given the regulations to control local swiftlet farming while the guidelines were being drawn up.

“The local authorities have been given instructions on issuing licences to 'swiftlet hotel' operators.

“We have also given clear directives on how operators can install speakers to attract the birds and the volume of the sound permitted,” he said.

Kong added that operators should comply with the regulations.

Various groups had called for tighter controls of or even a ban on swiftlet farming in urban areas, citing health and environmental concerns.


Attached thumbnail(s)

thks for the alert GEM/Hj Aziz

NST - Mar 31, 2010
Selayang Council proposes to amend local govt bylaws
After a series of workshops were conducted by the state's legal department and the views of state assemblymen, councillors and NGOs were considered, the draft amendments were presented to the full board for approval, before submission to the state government for endorsement and gazetting.
Razak said the policy changes included a fixed ceiling of RM10,000 on deposits payable for licence applications.
Previously, this was left to the council's discretion.
"In the area of enforcement, the bylaws stated that checks can only be done on premises licensed by the council. Now, we have the right to inspect all premises, whether they are licensed or not," he said.
Razak said there were now more detailed procedures for taking legal action on those who flout licensing procedures.
The compound rate for bylaw offences is now fixed at a maximum of RM2,000 per offence.

Before I am accused of spreading panic ...
Pls read Aziz's repro of The Star article & if you agree that
Heritage BHs facing impending doom!
May I request your urgent response to my question...
Does anyone of you either through your association or otherwise has firm knowledge in writing or in public announcements
if anyone in the industry has been consulted or in consultation with the authorities for all these regulatory changes?
Please urgently share here..
Even if your response is negative & you know of none, thks

Swiftlet issue to Cabinet



Source: http://thestar.com.my/news/story.asp?file=...1478&sec=nation

Leongal,
thks for the link

Kindly respond to my question...
Do you have any evidence of anyone from the industry involved in the drawing up of any of these regulations?
thks

What you mean by the owner had the tear filled red eyes ?

The ultrasonic amplifier was a flop.
Any comments to the contrary is welcome.
Am here to learn.

This post has been edited by Cergau: May 23 2010, 09:45 PM

luckily i seek opinion from sifus here, if not could have bought one for rm9++..

and the seller say if adjustment correct bird will come??

any other currently using this gadget? mind to share?

good one really la*cy neighbour waiting to complaint to the council once i blast my sound!!!

The only way to test the ultrasonic amp before you buy is to play it with duress sound for 10 min and observe the response from the birds and then use the normal amp to play the duress sound again and observe again. Compare the results and post it in this forum

That was what I wanted to suggest initially, but....some reservations
Can an original track in the audible range be reproduced in the ultrasonic range by being played on an ultrasonic amplifier and vice versa?
Maybe the posting about the flop testing was cos' only the ultrasonic bit of the audible bird song was being played thus failed?
Need a audiophile to answer these questions

In the event that it works at some point in future
Do we buy audible bird songs and play them on an ultrasonic amplifier that we cant hear OR
Do we buy an already ultrasonic track to play on an normal amplifier or ultrasonic amplifier
How would you know at the point of purchase that you have not purchased a blank CD or given a blank by accident?

Birds cannot hear high i.e. ultrasonic frequencies beyound the audible range of humans, above about 20 kHz, however birds do produce ultrasonic sound and some e.g. Capercaillies, produce very low infrasonic (below 40 Hz) frequencies.
http://psychology.exeter.ac.uk/lundy/bird_song.htm

This report conflicts with the 1 above.
http://www3.interscience.wiley.com/journal...869051/abstract

Still not conclusive then....
Maybe WaletJohor need to do some National Service for the industry and test it out.

So, no one wants to answer my earlier question on the regulatory stuff and no one wants to react to the newspaper article?
Business as usual?

The apathy amongst birdhouse owners is well known.

Wait till the destruction begins and then only there will be noise.

"Various groups had called for tighter controls of or even a ban on swiftlet farming in urban areas, citing health and environmental concerns."

what is the definition of urban areas? does it mean population density exceeding 40 persons per acre or 10,000 persons per sq kilometre of surrounding lands.

There's the reason behind my Qs if anyone knows of anyone who sits in consultation with the authorities in drawing up all these regulations.
I take it that no one knows for certain if there anyone from the industry in consultation with the authorities.
In that case, we have not been consulted!!!

We need the contents of the 1GP.
Are they going to hide behind legal procedural requirements to disallow us the contents of 1GP.
WildLife Bill need debating as such available in Parliament.
Is the 1GP related to national security that it can't be made available to the public?

This post has been edited by Cergau: May 24 2010, 12:23 PM

It's been tried and tested !

Most modern audio amps, consisting of ic's and not valves, will respond to ultrasonic frequencies of 20khz to 40+khz.
Very few adult humans can hear beyond 20khz.

Recordings on CDs can record beyond 20khz provided the original sound was recorded to include information beyond 20khz.

Microphones are usually designed to respond to no more than 40khz and usually it is the cheap mics. that use ceramic pic ups that will go that high.

The energy at high frequencies is short ranged.

Tweeters of the ceramic type can respond to play signals to about 40khz. That's the cheap made in china tweeter.

When an amplifier with a graphic equaliser is set to play bird calls only at the highest frequencies, the sound becomes very soft to human ears. The birds do seem to respond to this but not as well as when it is played normally. This is perhaps the range is nearer or the birds cannot hear that well either.

With the above result, I never proceeded to true ultrasonic frequencies as it would be a waste of time.

tuckfook,
thks for the elaboration, most helpful.
Your posting does indicate a reduced reaction to ultrasonic sound in comparison to the audible, a reaction nevertheless.
Per yr posting you have set the equaliser to output just the ultrasonic then only a little of the full bird song will come through?
Is there a possibility that cos' only a small bit of the full bird song were played, explains the relatively little reaction?
Can the full bird song be manipulated correspondingly to generate a full ultrasonic bird song?
I am out of my depth on this so dun laugh so loud and injure yrself .

Guy, my mum bh operates 1.7years currently around 800+ nests. Ground level is 28degree but upper level 30degree. Any idea how to lower it? And the upper level nests seem like to crack a little bit. So i guess it is because too hot or too dry?

I have never come across any audio file with ultrasonic format or extension. Most swiftlet's sound were either in .mp3 or .wav. So my guess is playing a normal .mp3 track in ultrasonic amp.