Asia Noise News

User meeting SoundPLAN, 23 February 2016 Bangkok

User meeting SoundPLAN, 23 February 2016 Bangkok

The SoundPLAN Asia usermeeting will be held in Bangkok, Thailand on 23 February 2016 at the SC Park hotel.

Jochen Schaal is owner / director of SoundPLAN Germany and will tell more about:

– New features SoundPLAN version 7.4
– Industry Industry module new features, Source emission from measured levels, Directivity, Industrial building
– Aircraft Aircraft Noise (radar + helicopter).
– Building Building Acoustics Outside
– Graphics Graphics workshop – new features – questions
– AttributeExplorer, Attribute Explorer and its use
– Total noise VDI 3722-2 total noise assessment
– Loudspeaker Complex loudspeaker setups (d&b audiotechnik)

There will also be a guest speaker from ERTC (Environmental Research and Training Center) who is experienced in noise mapping, especially for the Suvarnabhumi airport extension.

RSVP before 15 February, participation is free for all SoundPLAN users and includes breaks and lunch.

Please send your confirmation to or use our Contact form

Asia Noise News

China Exclusive: Festive noise annoys neighbors

SHIJIAZHUANG, Dec. 9 (Xinhua) — Wu Xianzhou had to eventually call the police because firecrackers that were being set off by his neighbors kept him awake.

“I felt dizzy all day long. Firecrackers woke me at 6 a.m. At 9 p.m., when I tried to sleep, another round of firecrackers went off,” said Wu, who is in his 70s and lives in Xiangfuli Residential Community in the city of Tangshan in Hebei Province.

Noise pollution is a problem, especially at this time of the year. Setting off firecrackers is a Chinese tradition to celebrate weddings, opening of a new business or moving into a new home. Chinese people tend to arrange wedding ceremonies at the end of the year.

Although cities including Tangshan do not allow firecrackers to be set off in the city proper, enforcement is poor. Police usually turn a blind eye.

People realize the harm being caused to their health by the noise. They have complained about it, said You Jie, a police officer in the city’s Lubei District.

You said his police station in Wenhua Road has dealt with nearly 1,000 complaints about firecrackers this year. The police have issued fines in extreme cases.

Studies show that noise exceeding 85 decibels can cause hearing impairment and harm the heart. Long-term exposure to noise may lead to male infertility or miscarriage.

Apart from firecrackers, loud music in public squares is also a problem.

Last month, high school students from the No. 1 High School of Kailuan in Tangshan City protested about loud music being played in Fenghuangshan Park, a place where people dance.

They wore t-shirts saying “Dear grandpas and grandmas, uncles and aunts, would you please put your music down. We’re having lessons. Bless you. Thank you.”

Liu Sichen, one of the protesters, said although the dancing created a harmonious atmosphere, it was too loud. The noise made it difficult for the students to concentrate in class.

“The dance music drowned out our teacher’s voice,” he said.

In response, dancers decided to use smaller audio amplifiers so the music is not as loud.

To address noise pollution, authorities in Tangshan, Taiyuan, capital of Shanxi Province, and Guangzhou, capital of Guangdong Province, are mulling the idea of a “noise map”, where different areas can have different noise limits.

“With the mapping, both complaints and enforcement regarding noise pollution will be better exerted based on regulations,” said police officer You.

Asia Noise News

Hong Kong blind community calls for louder noise from electric cars to improve safety

Hong Kong blind community calls for louder noise from electric cars to improve safety

Hong Kong blind community calls for louder noise from electric cars to improve safety

The silent nature of electric cars may improve quality of life, but Hong Kong’s blind community has demanded the city’s e-vehicles emit a louder noise, claiming their quietness threatens the safety of the visually impaired, the Post has learned.

Joining forces with the World Blind Union’s global campaign against silent e-cars over safety risks, the Hong Kong Blind Union has raised calls for local authorities to introduce legislation to regulate the vehicles.

Concerns have been raised by the international blind community about their hazards as they give no audible warnings to road users. This risk is higher when silent cars proceed at low speeds such as in parking lots.

As some countries such as the US, the UK and Japan already have plans to regulate e-cars’ sound levels, the union hoped local officials would require the city’s e-cars to be equipped with an alert system so that not only the visually impaired but also the elderly and children could easily be alerted to their movements, particularly on quiet roads. As of the end of August this year, there were 6,167 electric vehicles in Hong Kong, up from fewer than 100 at the end of 2010.

The union’s president Chong Chan-yau told the Post his group wrote a letter to the government in March this year asking that it introduce legislation and conduct a public consultation with all stakeholders, especially the blind community. “But the reply to us did not indicate any active actions to be taken by the government,” he said.

“E-cars are now being regarded as a potential threat to visually-impaired pedestrians. The World Blind Union has raised this issue over the past two years at the UN and the European Union. This battle is being fought internationally,” he added.

A Transport and Housing Bureau spokesman told the Post it would follow up the issue as the UN Economic Commission for Europe world forum for the harmonisation of vehicle regulations was soon to publish a regulation requiring acoustic warning devices on hybrid and electric cars.

Once the regulation is published, the department will “liaise with the electric-vehicles’ manufacturers to follow up on installing acoustic warning systems on their vehicles” to further safeguard road users, the spokesman said.

He added the department had tried to persuade the relevant suppliers in Hong Kong to install the alert system to address blind people’s concerns, believing they would follow the new regulation.

He said some e-vehicles’ manufacturers such as Nissan Leaf and Renault Zoe had “already taken the initiative to introduce such systems into certain EV models in Hong Kong”.

But Chong said regulation of e-cars’ warning devices was necessary as the blind relied heavily on surrounding noise for orientation and discerning between vehicular and pedestrian roads.

He added that while many manufacturers agreed to install a warning system in their e-cars, some would like to give drivers an option to turn off the sound. Chong cited views he gathered at a World Blind Union conference in Orlando, Florida, in August.

“This is unacceptable to us. For the drivers, it doesn’t affect them because the sound is emitted outside the car, not inside. We will insist that the system should always be turned on,” he said.

Locky Law, Tesla owner representative at Charged Hong Kong, said e-car owners would not oppose installing a beeper if carmakers sought to use the device to address blind people’s concerns.

However, he expressed worries over noise emission levels as the city’s streets were already clattering with different types of sounds. Law said adding beepers to e-cars and requiring them to emit a sound whenever they moved would “certainly make the roads very noisy”.

“How loud should the beeper be then?” he asked. “With so many sounds on the roads, will that be even more confusing and dangerous for the blind?”

Law said the best approach was to conduct joint tests on Hong Kong streets with participation from representatives from blind groups as well as the government, academic experts and automakers to determine what noise standards would be suitable locally.

A spokesman for carmaker Honest Motors, which produces the Nissan Leaf, said the company’s e-cars had been equipped with beepers since 2011 in compliance with US regulation.

“The sound is loud enough to provide a warning to road users and quiet enough to avoid being disturbing,” he said. “Since the noise is emitted from outside [the vehicle], it still enables a quiet environment inside.”


Asia Noise News

Maps show noise impact of Heathrow runways

Maps show noise impact of Heathrow runways

PEACE and quiet in north-west Surrey could be drowned out forever if Heathrow Airport is allowed to develop into a four-runway hub, according to new research by an anti-expansion group.

The 2M Group, led by the Conservative-controlled London Borough of Wandsworth, is an all-party alliance of more than 20 local authorities concerned about the environmental impact of Heathrow expansion on their communities.

The group, of which Spelthorne Borough Council used to be a member until switching allegiance and backing the airport, has produced noise contour maps showing areas that could be affected by aircraft from a four-runway Heathrow.

It is already feared that tens of thousands of residents in Spelthorne could be forced to move from their homes to make way for the expansion.

The maps are colour-coded to show which areas would be most adversely affected by noise – with the towns and villages in darker shading bearing the greatest brunt.

According to the maps, there would be an increase in noise for Staines, Egham, Virginia Water and Thorpe, as well as what was left of Stanwell and Ashford, plus parts of Elmbridge.

Heathrow Association for the Control of Aircraft Noise (HACAN) chairman, John Stewart, described the impact of two additional runways as “devastating”.

He said: “The opposition from 2M and residents would be so great that it probably makes the whole project politically impossible.”

The 2M Group has consistently warned that Heathrow will not stop expanding if granted a third landing strip.

A spokesman for the airport said: “We are currently examining a number of options, all of which result in significantly less noise for local residents than the 2M Group’s scaremongering.

“We know aircraft noise can disturb people living under the flight path, which is why we encourage airlines to fly only their quietest aircraft at Heathrow through higher charges for noisier aircraft.”

The airport’s main European rivals have four or more runways and Heathrow will need to match their capacity to directly compete.

Charles de Gaulle Airport in Paris already has four runways. Frankfurt and Barajas (Madrid) also have four, while Schiphol (Amsterdam) has six.

Noise and Vibration Product News

SPEKTRA improved True Free Field Calibration system, CS18FF

SPEKTRA improved True Free Field Calibration system, CS18FF

SPEKTRA improved True Free Field Calibration system, CS18FF

  • CS18 FF: The Free Field Calibration System contains a newly improved anechoic chamber.
  • The new developed chamber is very easy to disassemble and assemble, practical for shipping , moving.
  • It has excellent free field properties in the full range of frequencies from 125 Hz to 20 kHz
  • A LED lightning system has been added to the chamber
  • To position the DUT precisely and read out the sound level meter display clearly we 2 camera’s are installed in the anechoic chamber.
  • The modular structure of the chamber allows an easy modification of the anechoic chamber for other frequency ranges or test purposes
  • The anechoic chamber is equipped with 4 wheels for easy handling / moving

SPEKTRA CS18FF datasheet