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Posts Tagged ‘Aquarian H2a-XLR’

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Last month I published hydrophone recording „Crawling glacier“ from the lagoon beneath Svínafellsjökul icefall.
The original recording contains two other channels with the sound above the lagoon.
It is not as clear in this short mp3 file as it is with headphones in the field, but during the recording it seems to be possible to hear the flow of the icefall though the valley. Its is a slow event. It usually starts high above in the mountain with rumbling sound and then slowly moves in a shock wave as a silk smooth „white noise“ though the valley all the way to the toe of the icefall. Regularly the ice moves faster in some places when the pressure get high. Then it cracks, some parts brake off and other just crawl faster which is usually audible for everyone.
This behavior of the glaciers is not often audible during the day because of traffic, wind or the clear sun which can easily disturb the sound waves in the air. Then it is also too slow for impatient listeners. Nights are usually the best time to hear this sound of the „flowing mass“. Changeable nature or different types of glaciers will also play a big rule how it acts and sounds.
Quality open headphones are recommended while listening at low to mid level, or in speakers at medium level.

(mp3 256kbps / 44,3Mb)
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Recorder: Sound devices 788
Mics: Aquarian H2a-XLR & Sennheiser MKH20
Pix: Canon Eos M

Weather: Calm, cludy. 11°C
Location:64°00’12.7″N 16°52’39.6″W

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It is a special feeling to stay close to a glacier. It’s like standing near a wast monster that is constantly moving, but very slowly. Everywhere around this flexible ice the gravity of the ice is visible. Glaciers usually have strong smell of fresh oxygen that glaciers have captured in ice and compressed in to locked bubbles for hundreds and thousands of years. This smell from the past is like from another world, probably because today has much more carbon dioxide in the atmosphere than it has been for 800 thousand years at least. Glaciers also make sounds, sometimes quite loud, from falling drops of water to earthquakes, but most of these sounds are not audible to human ears. Glaciers make constant sound in water which needs hydrophones to capture, as can be heard on the following recording. I can not say I have been lucky in recording glacier sounds in years past. I’ve always been at the wrong place at the wrong time when glaciers produce “big sounds”, but after many hours, and several days on the same spot, I got something interesting which is worth listening to.
One of those days was 5th of June 2015 when I was at the glacier lagoon neneath of Skaftafellsjökull glacier’s icefall. This lagoon is not big, probably around 500m squared, but the depth is around 80 meters so the soundscape beneath the surface can be pretty exhilarating when the glacier is crawling at the bottom of the lagoon.
I put two hydrophones in the lagoon and two microphones on a nearby hill and recorded there for almost fourteen hours. The gain on the recorder was almost equal on all channels, or around 48dB, and during these 14 hour session the soundscape was different mostly because the glacier surface melts differently during the day then during the night with different water flows into the lagoon. All the time the glacier was grinding the bottom of the lagoon so under the lagoon’s surface the soundscape was much nosier than above.
Then just before midnight the glacier did a “big move” (starts 25:00) which lasted for several minutes, crawling with cracking and scratching sound. The soundscape down in the lagoon sounds really strange and surreal, but the listener must keep in mind that sound travels much faster in water than in the air. The soundscape above the lagoon was different. It was possible to ‘feel’ or ‘see’ through the audio the movement of the whole Svínafellsjökull glacier icefall through the valley. But that recording will be for another soundblog.
Quality open headphones are recommended while listening at mid level, or in speakers at medium level.

(mp3 256kbps / 63Mb)
If the media player doesn’t start to play, please reload this individual blog in new tab or frame

Recorder Sound Devices 788
Mics: Aquarian H2a XLR
Pix: Canon EOS M

Location: 64°00’12.7″N 16°52’39.6″W
Weather. Calm, cloudy, 11°C

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The 14th of September 2014 over 100 people met in a ceremony in Arnarholt, west of Iceland, to introduce the tree of the year. This tree is 105 years old European Larch (Larix decidua) so it is one of the oldest tree in Iceland .
The one hour ceremony included speeches, songs and valid measurements of the tree.
The tree was 15,2 meter high with 2 m circumference.
The following recording does not include the whole ceremony. The problem was that all the speeches were trough megaphone so the sound was awful. But the songs were ok and one speech about history of the tree too. The recording ends with another recording I made after the ceremony under the tree with binaural array and contact mics on the tree bole.

Tré ársins 2014

Í Arnarholti í Stafholtstungum var 105 ára Efrópulerki útnefnt tré ársins þann 14. september 2014. Hátt á annað hundarð manns mættu við hátíðlega athöfn og hlýddu þar á ræður og söng. Þá var tréð mælt með löggiltum hætti og reyndist það vera 15,2 metra hátt.
Meðfylgjandi upptaka er ekki lýsandi fyrir það sem gerðist við athöfnina enda upptakan talsvert styttri.
Menn töluðu þar óspart í afar slæmt hljóðkerfi sem ekki var áheyrilegt. Eftir stóð þó söngurinn og ein ræða þar sem stuttlega var sagt frá sögu trésins og þeim tveimur mönnum sem að gróðursetningu þess komu. Í enda upptökunar má heyra vindinn gæla við trjátoppana og hljóðin innan úr bol trésins tekin upp með „kontakt“ hljóðnemum.
Full lýsing á dagskránni þennan dag er annars ágætlega lýst í Laufblaðinu, Fréttablaði Skógræktarfélags Íslands.
Upptakan er birt með leyfi söngvara.

Download mp3 file (192kbps / 31,2Mb)

Recorder: Sound devices 788
Mics: MKH30/NTG3 (MS config) & MKH20 (binaural) & Aquarian H2a-XLR
Pix. Canon EOS M
Rec. Location: 64.675469, -21.630393

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I got a grant to record nature sounds in the Vatnajökull national park from the association “Friends of Vatnajökull”. It was not a trouble free trip, but anyway it was very instructive and I recorded many hours of very interesting and lovely sounds. Most of the recordings are long and unbroken. Some of them are up to 6 to 10 hours long so they contains many things I have never heard until now when I am registering the collection and searching for material to publish.
In 22nd of May I spent most of the day near Jökulsárlón glacier lagoon. I recorded around three hours in the lagoon with hydrophones. I was located close to the ejection because there it was most likely to catch some wild life activity.
When I started following recording the current was flowing out of the lagoon. Three or five seals were diving nearby between the icebergs which slowly were moving towards the ejection.
It was stunning when I put the hydrophones in the lagoon.
What a sound! It was much louder than I thought and was both stunning and frighten.
The several thousand years old ice was melting with cracks, screeches and scratching the bottom of the lake. Sometimes I could detect a deep rumble sound in a distance, probably when icebergs were scratching the bottom of the 200 meters deep lake. Comparing to all those loud sounds, everything was peaceful above the surface.

Hljóðin í Jökulsárlóni. 1. hluti

Ég fékk styrk s.l. vetur til að hljóðrita hljóðvist Vatnajökulsþjóðgarðs frá samtökunum  Vinum Vatnajökuls. Það gekk á ýmsu á meðan á því stóð en á endanum var ég komin með mikið af áhugaverðu og skemmtilegu efni. Mikið af þessum upptökum eru langar og ósltitnar eða 6-10 klst langar svo ég hef ekkert hlustað á fyrr en nú þegar ég stend í því að skrásetja upptökurnar.
Þann 22. maí var ég staddur við útfallið við Jökulsárlón og hljóðritaði undir yfirborði lónsins með vatnahljóðnemum. Bæði hljóð og hljóðstyrkur kom verulega á óvart. Þarna var aldagamall ísinn að bráðna með hvellum og ískri um leið og hann skrapaði botninn á leið sinni að útfallinu. Öðru hverju mátti heyra drunur einhvers staðar utan úr djúpi lónsins og stöku sinnum mátti heyra hljóð sem hugsanlega komu frá 3-5 selum sem syntu ekki langt frá upptökustaðnum.
Það var óneitanlega mun háværara niðri lóninu en á yfirborði þess.

Download MP3 file (192kbps / 34,4Mb)

Recorder: Sound devices 788
Mics: Aquarian H2a XLR
Pics: Canon Eos M (see more pictures)

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In February I went to Geysir in Haukadal with my recording gear.  The plan was to record the sound in Geysir and other hot springs in the area with hydrophones. But when I arrived it was both windy and freezing cold so I did not make as many recordings as I expected.
Anyway, I got some recordings that I mixed together in one 20 minutes session.
It started with eruption in hot spring named Strokkur. It usually erupts every five to ten minutes and is one of the most attractive things in the area today.
Then, we dived down to the tube of Geysir. It is now some decade since it erupted automatically so now it is just a quiet deep hole in the ground full of hot water.
Then Strokkur erupted again before we dived into the “blue side” of the hot spring Blesi.
After several minutes Strokkur erupted again and we dived into the ”deep side” of Blesi.
Then we went to the surface and listened to two eruptions on Strokkur in a fellowship with two tourists.

Geysir, Blesi og Strokkur.

Í febrúar gerði ég mér ferð í uppsveitir Árnessýslu með upptökutækin. Var komið við á stöðum eins og á Geysi þar sem hljóðnemar voru brúkaðir bæði ofan jarðar og neðan. Vegna roks, kulda og myrkurs náðist ekki að hljóðrita allt það sem til stóð, en eftir stóðu þó upptökur sem hér hafa verið dregnar saman í stutta 20 mínutna langa hljóðmynd.

Download mp3 file (192Mbps / 29Mb)

Recorder: Sound devices 788
Mics: Aquarian H2a-XLR & Sennheiser MKH8040 (ORTF)
Pics: Canon EOS M (see more pictures)

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In Iceland it is possible to find many hot springs all over the country. Many of them have optimal temperature for bath and to relax. For centurys people have piled stones and turf around some of this known natural hot springs.
In the beginning of last centuries many of this natural hot springs were used to teach people to swim. Soon, many communities all over the country built real swimming pools of concrete near these springs.
One of these places can be found at Krossholt at Barðastönd, Southwest Iceland. There is Krosslaug, a 12 meters long swiming pool, built in 1948. There is also newly built natural hot tub, build on a hot spring in traditional style. It was the Youth Association of Barðaströnd County who piled this tub with stones, gravel and turf.
From the bottom through the ground of the tub comes the warm water with bobbles that gives relaxing sound while laying there with the ear below the surface. You can hear the bobbles moving upwards trough the gravel deep from the ground under the tub.
This recording was made with hydrophones at 15th of June 2012.
Another interesting recording from Krossholt, nearby place is: Opus for power line, bass, wind and birds.

Krosslaug í Mórudal við Barðastönd.

Á Birkimel við mynni Mórudals, hefur myndast þjónustukjarni Barðastrandar.
Það hefur reynst mér ótrúlega erfitt að afla sögulegra heimilda um þennan stað á vefnum. Því segi ég aðeins það litla sem ég tel mig muna.
Á sjöunda til níunda ártaugar síðustu aldar var þar skóli, félagsheimili, kaupfélagsútibúð og litilsháttar iðnaður. Þar var einnig reynt að koma upp fiskeldi. Það fór á hausinn.
Í dag er staðurinn líklega betur þekktur fyrir ferðaþjónustu. Stéttarfélög eru þar með orlofshús sem og ferðaþjóunsta sem rekin er frá nærliggjandi bæ.
Víða í Mórudal er að finna volgar uppsprettur. Sundlaug var reist við eina slíka í fjörunni neðan við Krossholt 1948. Hefur hún átt það til að fara nokkuð illa í vondum veðrum. Vorið 2011 var laugin tekin í gegn og var þá hlaðinn heitur pottur að ég held yfir volgri uppsprettu fremur en borholu..
Það er ákaflega notalegt liggja í þessum potti í makindum með eyrun undir yfirborðinu og hlusta á volgt vatnið og loftbólur streyma upp úr jarðlögum pottsins. Meðfylgjandi upptaka var gerð í pottaferð 15. júní 2012.
Önnur áhugaverð upptaka sem gerð var við Krossholt er: Tónverk fyrir háspennustrengi, bassa, vind og fugla.

Download mp3 file (192kbps / 28,8Mb)

Recorder: Sound Devices 744
Mics: Aquarian H2a-XLR
Pics. Sony CyberShot DSC-P120 & Olympus 4040 & EOS 30D (see more pictures)

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Í fjöruborðinu fyrir neðan Europe Villa Cortes GL hótelið á Tenerife er sjávarlaug. Sá ég fáar manneskjur synda í þessari laug. Hún leit því út fyrir að vera frekar líflaus. En þegar betur var að gáð var hún full af lífi. Í lauginni var urmull krabba, snigla og annarra kvikinda sem ég kann lítil deili á.
Síðla dags þann 22. desember 2011, rétt fyrir sólsetur, stakk ég hljóðnemum í laugina og gleymdi mér í rúman klukkutíma við að hlusta á einhver kvikindi gefa frá sér hljóð. Í bland við öldunið og fótatak fólks sem gekk um laugarbakkann mátti heyra ýmis hljóð. Öðru hvoru skvettust öldur inn í laugina en háværastir voru líklega sniglar sem nörtuðu botn og veggi laugarinnar í ætisleit.

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Creatures in the pool

In the beach below the Hotel “Europe Villa Cortes GL” at Tenerife is a sea pool. It was probably build some years ago for people to swim, but today it is full of all kinds of algae, snails, crabs and other creatures, so it looks not popular for humans.
In the afternoon at 22 of December 2011, I put hydrophone in the pool and recorded more than one hour of mystique sound. Most audible sound are rumbling sound from the surf. Sometimes the waves goes all the way in the pool with splashing sound and sometimes footsteps can be heard when people walk by the pool side. But there is also many other sounds from organic creatures, most likely from hungry snails scratching the pool surface.

Short version
Download mp3 file (192kbps / 4,2Mb)

Long version
Download mp3 file (192kbps / 28Mb)

Recorder: Sound Devices 744 (24bit / 48Khz)
Mic: Aquarian H2a-XLR
Pix: Olympus 4040 (underwater) and Canon 30D (See more pictures)

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Reykjavíkurtjörn

Í vetur bárust landsmönnum þær döpru fréttir að fuglalífi við Reykjavíkurtjörn hefði hrakað mikið síðustu ár. Það leiddi huga minn að því að ég ætti sama sem engin hljóðrit af fuglalífi við Tjörnina. En einhvers staðar á ég þó upptöku sem ég tók upp framan við Iðnó fyrir 30 árum.
Yfirþyrmandi umferðarniður hefur annars valdið því að ég hef ekki lagt það í vana minn að eltast við náttúruhljóð í miðbæ Reykjavíkur.
Framvegis skal verða breyting á, því spennandi verður að sjá hvort mönnum takist að endurheimta þá fugla sem verptu og komu upp ungum við Tjörnina um miðja síðustu öld .
Tvær helgar í janúar gerði ágæis veður. Arkaði ég með upptökutækin niður að Reykjavíkurtjörn sem var ísilögð. Stóð allt eins til að hljóðrita brak og bresti í ísnum, en ég komst fljótt að því að hann var ekki nógu kaldur, of mikill snjór á honum og að vanda of mikill umferðahávaði.
Fuglalífið varð því aðal viðfangsefnið þessar tvær helgar. Ákvað ég að staðsetja tækin á göngubrúnni frá Iðnó að Ráðhúsinu. Tveimur vatnahljóðnemum var stungið í Tjörnina u.þ.b. 20sm fyrir ofan botn með tveggja metra millibili. Fyrir ofan, á brúnni, voru hljóðnemar í XY uppsetningu.
Þarna má heyra hundgá, í fólki gefa öndum brauð og í útlendum ferðamönnum.
Undir yfirborði tjarnarinnar heyrast mikil skvamphljóð frá fuglum sem börðust um brauðið á yfirborðinu, einnig í skúfönd sem oftsinnis kafaði nærri hljóðnemunum. Þá heyrist málmhljóð þegar gengið er á brúnni og eitthvað slæst í burðarvirki hennar.

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In two worlds

In Reykjavik center is a quiet big pond or a lake with many bird species, like Swans, Gooses and Ducks. Often people feed this birds with bread so outburst is normal when birds grasp the breadcrumbs.
This recordings was made simultaneously both above and under water on four tracks. Two hydrophones where placed 2 meters apart and 20 cm above the pond bottom. On the steel bridge above was two cardioid in XY setup.

Above the pond.
Download mp3 file (192kbps / 10,1Mb)

In both worlds. Above and in the pond.
Download mp3 file (192kbps / 10,1Mb)

In the pond.
Download mp3 file (192kbps / 10,1Mb)

Recorder: Sound devices 744 w/552 preamp
Mics: Aquarian H2a-XLR (spaced omni) and Rode NT1a (XY)
Pix: Canon 30D

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Það er vart til það sumarhús sem ekki hefur heitan pott á veröndinni. Ansi oft er hann samkomustaður barna á daginn og fullorðinna á kvöldinn. Í júli 2011 dvaldi fjölskyldan í stéttarfélagsbústað nærri Flúðum. Auðvitað var potturinn mikið notaður. Sonurinn dvaldi þar oft löngum stundum og var þá tilefni til að lauma hljóðnemum í vatnið. Margir kannast við hljóðin undir yfirborði vatnsins í svona pottum.  En hér heyrist greinilega þegar fæturnir nuddast við botninn sem og orðaskil ofan vatnsborðsins. Þá heyrist þegar gengið er um á sólpallinum og stólar dregnir til.

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Boy in a hot tub.
Many Icelanders own a summer house. Almost all this summer houses have a  outdoor hot tub spa.
In July 2011 I spent one week in workers union summer house. Of course there was a hot tub where my son spent many hours for fun. I put my Aquarian mics in the tub. Part of the result can be hear in the session below.

Sækja mp3 skrá (192kbps / 12,5Mb)

Recorder: Korg MR1000 with SD552 preamp.
Mics: Aquarian H2a XLR  40cm apart
Pix: Olympus 4040 in Ewa-Marine pocket.

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Þau skipti sem ég hef róið kajak á sjó hef ég oft leitt hugann að því að líklega væri meira spennandi að vera neðansjávar en ofan. Áhugi minn á lífinu neðansjávar minnkaði svo ekkert við það þegar ég fékk mér neðansjávarhljóðnema og gat farið að hlusta á þann hljóðheim sem þar er. Hljóðin sem hér heyrast voru tekin upp fimmtudaginn 11. ágúst 2011, austan við bryggjukantinn við Áburðarverksmiðjuna. Hljóðin sem þarna heyrast geta komið frá rækjum, skeljum og hrúðurkörlum en hæst heyrist í einhverju sem líkist því að verið sé að róta í möl á botninum. Þá heyrast líka hljóð sem hugsanlega koma frá sel eða hval og tíst sem líkist tísti hjá auðnutitlingi. Þó það hafi verið stafalogn á meðan á upptöku stóð þá eru drunurnar líklega tilkomnar vegna þess að létt gola leikur um hljóðnemakaplana. Fljóðtlega í upphafi hljóðritsins má heyra eitthvað snerta hljóðnemana í nokkur skipti en það er annaðhvort þang eða nart fiskiseiða sem mikið er af á þessum slóðum á þessum árstíma. Á 12. mínútu kemur stór hópur kajakræðara fyrir hornið á viðlegukantinum. Þá heyrist greinilega í áratökunum á leið þeirra inn í Eiðsvík.
Ef einhver veit hvaða skepnur það eru sem gefa frá sér hljóð í þessu hljóðriti þá er um að gera segja frá því í hér.

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What is under the Kayak?
Every time I´am sailing on my kayak I start to imagine how the world is beneath the kayak. When I got my Aquarian microphone it opened a whole new world for me.
In mid of August 2011 I recorded this world from the dock at Gufunes in Reykjavik. Most of the sounds are pops and crackles, possibly from shrimps and/or shells. The highest level comes from something that looks like someone is routing gravel on the seabed. But sometimes other strange sounds are audible, such as “birdsong”, “mumble Duck” „crying child“ and „sounds from piano strings“. Other sounds are easy to explain like diving ducks searching food and small waves at nearby beach. At 11:40. min. a group of Kayak rowers pass by with a splashing sound.

Sækja mp3 skrá (196kbps / 27,6Mb)

Recorder: Korg MR1000 v/Sound Devices 552 preamp (24bit/96Khz)
Mic: Aquarian H2a_XLR (with 40cm interval)
Pix: Canon 30D (see more pictures)

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