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Posts Tagged ‘Sound devices MixPre6’

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Ásbyrgi has a fantastic soundscape. It is one of the wonders of nature, a forested horse-shoe shaped canyon in Oxarfjordur. Asbyrgi is a part of Jökulsárgljúfur, within the Vatnajökull National Park.
I was there recording over night for ten hours 1st. of June 2018 . I don´t know if it was the time of the year, or something else, but the cliffs were very quiet this night. Usually I have been there later in June and July and the Fulmar in the cliffs have been noisier.
It was around 8 o´clock in the morning, just before the tourist traffic arrived that the soundscape in the canyon changed. It was like the whole biosphere woke up with lots of birds and insects activity. The following recording is the last 30 minutes that day before the soundscape was ruined by traffic noise and yelling tourists. Several bird species are in this recording. Northern Fulmar, Common Snipe, Eurasia Woodcock, Whimbrel, Red-Necked Phalarope, European golden Plover,  Pink footed Goose, Eurasian Wigeon, Eurasian Teal, Redwing, Common Redpoll, and Snow Bunting.
Here you can also listen to older posts from Ásbyrgi: Fairy in Ásbyrgi and Botnstjörn pond in Ásbyrgi.
Quality open headphones are recommended while listening at low to mid level, or in speakers at medium level.

  (mp3 256kbps/62,3Mb)

Recorder: Sound Devices MixPre6
Mics: Sennheiser MKH20 (AB40 setup)
Pix: LG G6
Location: 65°59’56.6″N 16°30’44.9″W
Weather: Clear sky, light gust, 5°C

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Iceland’s electricity is produced almost entirely from renewable energy sources: hydroelectric (70%) and geothermal (30%). Less than 0.2% of electricity generated came from fossil fuels (in this case, fuel oil). In 2012 there was no wind power installed in Iceland. Electricity production increased by 24 MWh/person from 2005 to 2008, an increase of 83%.
According to Statistics Iceland the total electricity consumption was 7,958 GWh in 2002, 11,480 GWh in 2007, and 17,068 GWh in 2012. The aluminum industry in Iceland used 71% of produced electricity in 2011.
The electricity supply and consumption were equal in 2008: 53.1 MWh per inhabitant when the European union (EU15) average was 7.4 MWh. Iceland’s consumption of electricity was seven times higher than EU 15 average in 2008. The domestic electricity supply promotes use of electricity.
The Icelandic electricity market is geographically isolated. The market was closed for competition prior to 1 July 2003. Almost all electricity was supplied by Landsvirkjun and sold through regional distribution companies. Landsvirkjun had a monopoly position on investment in generation. Full market opening began in 2006 e.g. with the opportunity to switch supplier. Contracts for large scale energy users were in general long term, up to 30 years with options for extension.
Landsvirkjun, the largest electricity producer, had 76% annual production in 2007.The majority of the electricity is used in industry, mainly aluminium smelters and producers of ferroalloy. Landsvirkjun does not participate directly in the retail market for households and smaller businesses. In the retail market the main companies are RARIK, Orkuveita Reykjavíkur and Hitaveita Suðurnesja.The last two have also entered into the market for energy intensive users. The households heated with electricity, not many, receive subsidies to make their heating costs comparable to hot water heating. (Wikipedia) .
The following recording was recorded at Skóey island in Hornarfjörður fjord under a powerline “Byggðalína”. It is a 132kV powerline which connects all the regional and local electrical grids together and stabilizes the whole electrical grid in Iceland. The structure is in most parts over thirty years old and for the last several years it has been quite overloaded.
The recording was in 24bit/48Khz. Behind the aggressive electrical sound is a typical calm, quiet wetland soundscape with rumbling background noise from the ocean shore not far away and traffic.
When the recording is inspected in specrogram it shows the sparks fill the whole frequency spectrum of noise, or up to 24Khz (see picture). It would have been interesting to record this sparking sound at 192kHz because the whole microphone frequency range is up to 50Khz. That is not all, because the air is massively loaded with EMF/radiowaves, from 50Hz up to several hundred kHz. The strong radio signals travel long distances and make it almost impossible to record clean spaceweather signals with VLF receiver without human electrical noise pollution.

(mp3 256kbps / 55Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040 (Parallel AB40)
Pix: Canon Eos M

Location: 64.311677, -15.322010
Weather: Calm, Cloudy, drizzle rain. Temp: ca. 9°C

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World Oceans Day takes place every 8 June. It has been celebrated unofficially since its original proposal in 1992 by Canada’s International Centre for Ocean Development (ICOD) and the Ocean Institute of Canada (OIC) at the Earth Summit – UN Conference on Environment and Development (UNCED) in Rio de Janeiro, Brazil.[1] The Brundtland Commission, i.e. the World Commission on Environment and Development, provided the inspiration for a global oceans day. The 1987 Brundtland Report noted that the ocean sector lacked a strong voice compared to other sectors. At the first World Oceans Day in 1992, the objectives were to move the oceans from the sidelines to the center of the intergovernmental and NGO discussions and policy and to strengthen the voice of ocean and coastal constituencies world wide.
The Ocean Project, working in partnership with leading organizations from all sectors, including the World Ocean Network, Association of Zoos and Aquariums, and many others in its network of 2,000 organizations, has been promoting World Oceans Day since 2002 and together with World Ocean Network led a three-year global petition movement to secure official UN recognition. World Oceans Day was officially recognized by the United Nations in late 2008.[2]
World Oceans Day events are celebrated on 8 June, the closest weekend, the week, and the month of June. The day is marked in a variety of ways, including launching new campaigns and initiatives, special events at aquariums and zoos, outdoor explorations, aquatic and beach cleanups, educational and conservation action programs, art contests, film festivals, and sustainable seafood events. Youth have been playing an increasingly important role since 2015, including the development in 2016 of a World Oceans Day Youth Advisory Council (Wikipedia).
The following recording was recorded at midnight 29th of May in a wonderful weather nearby Hraunhafnartanga peninsula, close by the arctic circle.
Quality open headphones are recommended while listening at low to mid level, or in speakers at medium level.

(mp3 256kbps / 55Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040 (Parallel AB37)
Pix: LG-G6

Location: 66.52273, -16.03947
Weather. Calm. Clear sky. around 7°C

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I spend almost 4 days late June 2017 recording in Þjórsárver area, which is a tundra southeast of Hofsjökull glacier. It was shortly after the road administrator open the Sprengisandur route across the highland, so there was still not much traffic. It was very early this summer so it was possible for me to record birds activity in nests.
When I arrived at Eyvindakofaver I saw an Arctic fox sneaking around a stone cairns and an angry Snow Bunting flying around. It was a clear message for something interesting to record.
The weather was boring for recording. It was cloudy, the temperature about 4°C and the wind was SW, 5-10 m/sec. But the stone cairn was a suitable cover for the microphones. So I put up my gear and started recording just before midnight and then went to sleep.
At 3:40 the wind suddenly went down for about 30 minutes which was the only minutes with calm weather this four days in the area. Calm weather means normally better detail recording for the birds’ activity and deeper listening to far distance sounds.
Usually Snow Bunting lay eggs two times during the summer so this was likely the previous nesting time.
It is necessary to listen to the whole recording but suddenly something happens in the nest which we humans can guess was probably a brutal rape or other domestic violence.
If you think this was something else, feel free and leave a comment below.
Quality open headphones are recommended while listening in silence at low level, or in speakers at low level.

(256 kbps / 59,4Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH20 NOS
Pics: Canon EOS-M
Weather. Cloudy, around +3°C, SW, 2m/s
Location: 64.613944, -18.575462

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For me nothing is as pleasant as laying in the grass on a warm summer day in good distance from human activity, looking at the sky and listen to the wind wipe the grass until I fall a sleep.
This is something I did the 30th of July 2017 when I decided to visit places I remembered as a child, almost 50 years ago. It was at my grandparents´ farmland, Efri-Brú, which they owned most of the last century.
About 2 km northeast of the farm is a place named Hvítingshæðir. There is an old ruin of sheep shield, surrounded in grass field and remnants of old fence. This sheep shield in Hvítingshæðir was one of three or four sheep houses in distance from the main farm buildings. These sheep shields were usually built in places where it was easy to mow and keep hey for sheep during the winter months.
There is not much going on in this recording. Many decades have passed since farming was in the area and most birds are quiet this time of the day. So gust is playing the main role in the recording.
This was one the first recording I did with my parallel MKH8020/8040 AB setup in Rycote windshield. It was recorded on four channels with 50dB gain and HPF at 80Hz.
Quality open headphones are recommended while listening at low to mid level, or in speakers at low level.

(mp3 256kbps / 48Mb)

Recorder: Sound devices MixPre6
Mics: Parallel Sennheiser MKH8020/8040 AB setup
Pix: Canon EOS-M
Location: 64.111163, -20.972373
Weather: Dry, sunny, light clouds, 3-5 m/sec

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It was very nice weather this evening. The downtown was almost overcrowded with people which was shopping or just walking around to feel and smell the atmosphere of Christmas.
It was calm so the town smelled strongly of cloves, toasted knead, spirit, red vine, beer, all kinds of perfume, tobacco and even weed…and what is never missing in Reykjavik, a smell of exhaust from traffic.This was perfect weather to catch the sound of the Christmas rush hour.
Just 30 second after I start the recording, I heard beautiful singing voices. There were six singers of female song group „Jólabjöllurnar“.
I placed my self around 4 meters from the singers. Behind me was the audience on their walk who stopped for a moment to listen. The heavy background noise is mostly from car traffic, as usual.
This recording is captured with DIY binaural microphone rig which I just finished to prepare several hours before the recording. It contains two matched pair of parallel Primo EM172 capsules, connected to LOM phantom power adapter (see pictures).
I spent two hours walking around recording this evening. I noticed some audible time error between left and right channel in 30-40° around the rig which means the rig needs some changes in the future. But the funny thing is this time error sounds like a perfect „sound effect“ in combination with this well trained singers.
This was recorded on Lækjatorg square in Reykjavik town center between 9 – 10 pm.
Quality open headphones are recommended while listening at mid level.

Lækjartorg á Þorláksmessu 2017

Það var ótrúlega gott veður þessa Þorláksmessu. Miðbærinn var líka troðfullur af fólki, sem liklega skiptist jafn milli Íslendinga og útlendinga sem voru að versla, sýna sig og sjá aðra.
Þar sem ég gekk austur Austurstræti og var var nýbúinn að ræsa upptökutækið þá mátti heyra fagran söng frá Lækjartorgi. Ég gekk á hljóðið og þar var þá sextett fagurra kvenna að syngja jölalög.
Ég mátti til með að ná þessum söng á upptökutækið og gerði það þar til yfir lauk.

(mp3 256kbps / 44Mb)

Recorder: Sound devices MixPre6
Mics: Primo EM172
Pix: Samsung Galaxy6

Location: 64.147388, -21.936692
Weather: Calm. Cloudy, 1°C

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First weekend of August I traveled to Ísafjörður in the northwest of Iceland. From Isafjörður I took a daytrip with a boat over to Hesteyri which is located in a nature reserve named Jökulfirðir.
The weather was splendid so it was ideal to bring the recording gear with me and record the atmosphere at Hesteyri. This time I brought with me my newest mic setup I built inside Rycote stereo AG windshield. It is a 40cm spaced AB rig (AB40), a two stereo channels with parallel MKH8020/8040, which is slightly angled outward (around °5).
In Hesteyri I record in several places in a small area. Two of them was on the beach where the waves gently plays the music on the coastline during the rising tide. One of this recording is posted here below.
The wind was about 3-6 m/sec, blowing parallel among the coastline so the wind hit only the other side of the windshield, not front of it.
I used MixPre6. The gain was at 50dB, High pass filter on MKH8020 was 120Hz and on MKH8040 80Hz.
The microphones were placed on tripod 60cm above the ground. During the recording the tide rise so in the end the waves went under the rig.
Background noise is mostly the sea waves further outside the fjord and rivers behind and allaround the fjord. Sometimes the boat is knocking on the pier, 200 m away on the left side.
In post I lower the gain -5dB on MKH8020 and rise the gain +5dB on MKH8040 to keep the audible gain between the mics close to be equal. Use again Hi-Pass filter at 100Hz to minimize wind rumbling noise. and then normalized all three audio clips to 0dB. No low pass filter or noise reduction was used.
Both MKH8020 and MKH8040 sounds pretty similar in this recording, so I guess someone will ask:“ Why use four mics when two seems to be fine?“ “ Why making this four channel rig with this expensive mics?“ The short answer is this. The 8020´s are detecting sound from all 360° while 8040´s is only detecting 180° front of the rig. So if there was something behind the rig, like traffic noise it would been clearly audible with 8020´s, but far less with 8040´s. At this time (in Hesteyri) it was only a silence behind the rig so this is not a ideal recording for omni – cardioid comparison.
Field recording is mostly „once in a time – moment capturing“. So having a two different stereo recording of the same event, it is more likely either recording is OK. Two different recordings also give several opportunities in post.

MKH8020/8040 mixed together.
(Mp3 256kbps / 38Mb)

Only MKH8020
(mp3 256kbps / 5,3Mb)

Only MKH8040
(mp3 256kbps / 5,3Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040 (AB40) in Rycote AG (See pictures)
Pics: Canon EOS-M

Weather: Sunny. Light breeze 3-6 m/sec, ca. 14°C
Location: 66.333261, -22.873719

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