{"id":3179,"date":"2017-08-16T14:48:44","date_gmt":"2017-08-16T12:48:44","guid":{"rendered":"https:\/\/www-akustikksenter.wp3.hcweb.dev\/?p=3179"},"modified":"2022-08-17T14:14:24","modified_gmt":"2022-08-17T12:14:24","slug":"jarlsberg-newspaper","status":"publish","type":"post","link":"https:\/\/www.akustikksenter.no\/en\/arkiv\/jarlsberg-avis\/","title":{"rendered":"Sound control in Holmestrand library gave good publicity in Jarsberg newspaper"},"content":{"rendered":"

In connection with our assignment for Holmestrand Library, was Jarlsberg Avis<\/a> in place to make a report.<\/p>\n

For those who do not subscribe, we have been fortunate enough to be granted permission to reproduce the article:
\nText and photos by Magnus Franer-Erlingsen<\/a> \/ Jarlsberg Avis<\/a><\/p>\n

<\/h2>\n

\"\"<\/p>\n

ECODEMPING: Fredrik Lerdahl and Espen Thoresen from the Norwegian Acoustics Centre have ensured better sound conditions for Tone Kjelling and others who work in or use the library.<\/em><\/p>\n

 <\/p>\n

Now the staff at the desk can more easily hear what you're saying to them<\/h2>\n

 <\/p>\n

HOLMESTRAND:<\/strong> Sound is a special phenomenon. The librarians have realised this this summer.<\/p>\n

\"Church bells\" in the city council chamber and kitchen noise at the counter have annoyed users and staff at the library. But now the problems are about to disappear.<\/p>\n

- \"I've heard everything the caf\u00e9 staff have said in the kitchen, but not what's being said here at the counter,\" says librarian Tone Kjelling. Various machines in the caf\u00e9 are also said to have contributed to the noise level.<\/p>\n

Annoyance<\/strong>
\n\"Both staff and visitors have experienced the acoustics in parts of the library as problematic,\" explains library manager Berit Borgen.
\n- There has been too much sound, not least in the multi-purpose room where the political meetings are now held. It was not unexpected that there would be acoustic challenges in such a large room, which absorbs a lot of sound.
\n- But this was becoming an annoyance, so we just had to get on with it,\" says Borgen.<\/p>\n

That's why Fredrik Lerdahl and Espen Thoresen from the Norwegian Acoustics Centre came to the library on Thursday, \"armed\" with no less than 27 boxes packed with sound damping panels. On Friday, they finished the first part of the assignment.<\/p>\n

- We have measured reverberation and noise in the room, and the results are far above the requirements set by the Labour Inspection Authority for the working environment. There is no doubt that it has been very demanding to sit at the counter. But we're getting that sorted out now,\" explains Thoresen.<\/p>\n

 <\/p>\n

\"\"<\/p>\n

SOUND-ABSORBING: This is what the discs look like. Here from the multiroom, where the city council meetings take place. Photo: Magnus Franer-Erlingsen<\/em><\/p>\n

 <\/p>\n

Has had an effect<\/strong>
\nNow, the white - and rather anonymous - sound-absorbing panels cover large parts of the ceilings and upper parts of the walls. \"The panels absorb sound waves and prevent them from bouncing back as an echo,\" Lerdahl and Thoresen explain. And it has had an effect.
\n- In the multiroom, there was between one and a half and two seconds of echo - comparable to the sound conditions in old churches. \"The difference is that churches were meant to have a lot of reverberation. But now almost all the reverb is gone from here,\" says Thoresen and demonstrates.<\/p>\n

For the newspaper's reporter, the sound conditions now resemble a radio studio - in other words, little disturbing echoes.
\n- In the foyer, we measured the echo at 1.12 seconds. It's now down to 0.87 seconds. But we will return with other types of panels - oval \"rafts\" that hang from the ceiling, and then the echo will be further reduced in the foyer as well,\" they say.
\n- \"I immediately notice that there is less noise,\" confirms Tone Kjelling at the counter.<\/p>\n

Little known<\/strong>
\nLerdahl and Thoresen are employees of a fast-growing company. Hafrsfjord-based Norsk Akustikksenter almost doubled its turnover from 2015 to 2016. They are therefore used to working in large, open spaces with many hard surfaces: \"Problems with sound are something people tend to know little about, which is why many people live with sound problems without doing anything about it. This doesn't just apply to workplaces, we also often visit modern functional houses,\" says Thoresen.<\/p>\n

It also turned out that the library had ordered more discs than they needed, so other municipal buildings can now make use of them,\" says Berit Borgen.<\/p>","protected":false},"excerpt":{"rendered":"

I forbindelse med v\u00e5rt oppdrag for Holmestrand Bibliotek, var Jarlsberg Avis p\u00e5 plass for \u00e5 lage reportasje. For de som ikke abonnerer, har vi v\u00e6rt s\u00e5 heldige \u00e5 f\u00e5 tillatelse til \u00e5 gjenngi artikkelen: Tekst og foto av Magnus Franer-Erlingsen \/ Jarlsberg Avis EKKODEMPING: Fredrik Lerdahl og Espen Thoresen fra Norsk Akustikksenter har s\u00f8rget for…<\/p>","protected":false},"author":1,"featured_media":3180,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26,340,28],"tags":[],"class_list":["post-3179","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aktuelt","category-bibliotek-og-museum","category-referanser"],"acf":[],"yoast_head":"\nOmtale i Jarlsberg avis - Ekkodemping<\/title>\n<meta name=\"description\" content=\"Norsk Akustikksenter har s\u00f8rget for bedre lydforhold for Tone Kjelling og de andre som jobber i eller bruker biblioteket.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.akustikksenter.no\/en\/archive\/jarlsberg-newspaper\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Omtale i Jarlsberg avis - 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