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Posts Tagged ‘Sennheiser MKH8020/8040’

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Here is one of those recordings that I record without being directly aware of what will come out of it. Equipment is placed in a suitable location where the wind was minimal and left there for 30-40 minutes while taking a walk. So I really don’t know what is being recorded until much later when you have time to listen and process the recording.
In fact, I knew of a rockfall at this location and was rather afraid about leaving the equipment behind, because the ice cave that the recording equipment was in might as well collapse. Then there would be a mud and rock slide from the mountain slope that would submerge everything.
This ice cave was at the end of Breiðamerkurjökull icefall, in a place where the glacier was probably 300 meters thicker only 40 years ago when I first came to this part of Iceland. Now the glacier is not more than dirty, „dead“ ice. A lot of it is buried under sand and rocks.
For centuries, the glacier has scraped the slopes of the mountains in Suðursveit. When the glacier retreated, gravel and rocks fell from the mountain slopes on the glacier below, which then formed a thick insulating layer over the ice closest to the mountain slopes. Under normal circumstances for centuries, the advance of the glacier would have carried this gravel down to the glacier toe. But the glacier has for two decades stopped advancing in this place. The glacier has lost all its mass so it will not crawl anymore in this place. The glacier lies flat and dirty towards the sun in the south, thin and melts rapidly. However, the ice that is covered with gravel and rocks melts much more slowly. Therefore, e.g. still possible to see ice high up on the mountain slope of Vestur Miðfell, although it is probably 30-40 years since the glacier was there and reach so high in the mountain slope
The pleasant surprise of this recording was that the wind did not interfere with the recording. You can hear mudslides sliding down the ice-covered mountain slope with all kinds of sounds that sometimes remind of car traffic. Sharp clicks in the rock as it bounces all around the mic and in good headphones you can hear the rock bouncing over the mic.
You will hear people speaking in the distance, which was several hikers coming from the glacier.
You might hear a lot of „white noise“ in this recording but it is mainly coming from nearby rivers, the wind and rapidly melting glaciers which are usually astonishingly noisy when they melt fast .
Quality open headphones are recommended while listening at medium to high volume.
But be careful. This recording has a high dynamic range and can damage both speakers and your hearing if it is played too high.

(mp3 256kbps /62Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040. (2x2ch Baffled AB35)
Pic. Samsung S22

Location: 64.134056, -16.226150
Weather: cloudy, dry, up to 8 m/sec, 7°C,

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It took me a while to make that decision to put this recording on the web. Mainly because then I would normally have had to tell about the recording location.
But I’m going to say as little as possible, even though the story of the location is for me more interesting than this recording.
The location will therefore be a mysterious part of this recording.
The reason I don’t want this place to be attractive is mainly because then I am sure this place is likely to be destroyed.
Every time I visit this place it is like the time is standing still.
In some weather conditions, getting to this location from a busy road can be like going through a time machine.
Quite a few people know about this house, and it’s not quite in the public eye today.
This is a stone-clad house, built in 1883. It was supposed to serve as a shelter for travelers and mail carriers, but it fell into disuse because of ghosts.
I have been coming there regularly for nearly 40 years, mostly before the turn of the century in my bicycle tours, sometimes staying overnight and seeking shelter, or just sweeping the floor and writing in the guest book. The place is therefore quite dear to me.
The weather in Iceland so far this summer has been both cold and windy, and although I am much better equipped for traveling today than I was last century, I felt the need to seek shelter at the house this summer. There were quite familiar sounds in the house that I recorded there in 3 different places. Here is one of those recordings. Rain and wind hit the windows intensely and the front door from time to time, which is most likely the ghost knocking the door.
Quality open headphones are recommended while listening at low to mid volume.
If the media player doesn’t start to play, please reload this individual blog in a new tab or frame.

(mp3 256kbps / 57Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040 (Baffled AB40)
Pix: Samsung S22

Weather: 7°C, rainy, windy 5-10 m/sec

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Early in July 2023 I spent one night at Sultártangalón lagoon recording in three locations.
In the morning when I was leaving, it was sunny, calm and very hot, in the Icelandic way. The sight over the mirror smooth lagoon made me stop the car and enjoy the view. The recorders were ready and connected in the car, so I quickly set them up by the reservoir and took a short walk while they were recording.
The result was this. Typical Icelandic highland silence. Nothing interesting as an audio recording, but what caught my attention was the background noise of waterfalls and streams across the lagoon. This noise changed the EQ slowly in a variable thermal upstream due to the influence of the sun radiation.
Several bird species can be heard in this recording. These include Raven, Golden Plover, Dunlin, White Wagtail, Meadow Pipit and Red Throated Loon.
This was recorded with MKH8020/8040 in a fur wind shield, which was not the best choice, because the silence was considerable. Audio was recorded on MP6 with 50dB gain and in post-processing the gain was increased by another 20dB so they reached -10dBu.The MKH microphones were therefore not the most suitable for this moment. It would have been better if I had recorded with the LCT540s in IRT, to better capture all the small details all around.
To cancel out the loss of certain frequencies due to the fur wind shield, I raised the mid frequency by +2dB.
This is a rather sensitive recording. So I wasn’t using RX de-noise. But instead since nothing in the recording reaches frequencies higher than 8Khz, I lowered the EQ above 10Khz by a few dB to reduce the self noise in the microphones.
Quality open headphones are recommended while listening at low to mid volume.
If the media player doesn’t start to play, please reload this individual blog in a new tab or frame.

  (mp3 256kbps/56Mb)

Recorder: Sound Devices MixPre 6
Mics: Sennheiser MKH8020/8040 (Baffled AB)
Pix: Samsung S22

Location: 64.230420, -19.383488
Weather: Sunny, clear sky, calm, around 20°C

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I was recording at Breiðamerkurjökull when the weather forecast suddenly changed. It was nothing special, except that I had to row a kayak with another one in tow with a lot of recording equipment about 8 km on Jökulsárlón glacier lagoon before the weather would hit the area.
It fit, as soon as I got to land on the other side of the lagoon at midnight the fool weather arrived, so I just managed to pack all the equipment in the car and on the trailer before everything got wet. It was around two in the morning when I was able to leave. But I didn’t go far. I decided to sleep in the car near the high voltage power line (Byggðalína) on Breiðamerkursandi, south of highway no.1.
The next day it was dry, but still very windy. In fact, I could barely see Öræfjajökull glacier through a sandstorm. I decided not to be on the road with the trailer and the kayaks, but to wait until later in the day when it would calm down.
I could not sit idly by, but recorded in several places close to me. Including the high voltage line with all available equipment I had. With Omni & Cardioid microphones as well as Geophone and hydrophone which I use as a contact mic.
The result was quite amusing. By the time this happened, the strongest wind had subsided. But that moment a moisture was in the air, which caused a sizzle noise from the power line, which added a different sound and gave the recording a clearer picture of the recording location.
The recording below starts with the audible sound (microphone). Then slowly the contact mics are added . In the end and microphones faded out and you will only hear the sound from the contact mics (geophone and the hydrophone)
Because the microphone are located close to the ground in grass under the electricity pylons you will hear lot of „gray noise“ when the wind wipe the grass.
If you keep your attention Whimbrel are also audible.
So I explain the name of this blog, „Byggðalína“ is a name of high-voltage line that connects all the main settlements around Iceland. „Breiðamerkursandur“ is a name of a broad sandy wasteland south of Jökulsárlón Glacier lagoon.

  (mp3 265kps / 46Mb)

Recorder: Sound Devices MixPre6
Mics: MKH8020/8040 & LOM geophone & Aquarian H2a
Pix: Conon EOS-R

Weather: Gust up to 20m/s. Clear sky, ca. 14C°
Location: 64.028360, -16.265129

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At the end of July, a seismic period began on the Reykjanes peninsula, which ended with a volcanic eruption in Meradalar south of Reykjavík, not far from the place that last erupted in Fagradalsfjall during the COVID period.
I recorded for a few days during the earthquakes. Both with microphones and simultaneously with Geophones on four channels. After I had set up the microphones, the big quake stopped, but I did catch one that was 4.8 on magnitude.
When it started to erupt in Meradalir, the seismic activity stopped almost completely.
I took advantage of the weekend for a cycle trip to the eruption site and recorded approx. four hours of material. It was not easy. There was a lot of gas pollution and wind that are always characteristic of volcanic eruptions, but tourists and drones in the area never shut up.
I didn’t have a gas mask, which made the situation almost unbearable these four hours. It was therefore also impossible for me to record in places where other visitors could not reach.
I had my second best microphones for this project. It was my parallel MKH8020/8040 rig that gave me a lot of options to record a difficult and different subject. The attached recording is a small composite story of the events of the last few days, starting with an earthquake that then leads to a volcanic eruption.
The earthquake was recorded on four channels with two NT2a in MS configuration and two LOM geophones fixed in X/Y axis in my garage.
The eruption was recorded in AB40 on four channels with parallel MKH8020/8040 mic rig.
In post-processing, 8020 was used for the low frequency and 8040 was used for the higher frequency, which significantly reduced the noise from tourists and wind noise without losing the low frequency which in some places sounded more like a shock waves from the crater.
The recording of the eruption is from three places at the eruption site. You can actually hear it when I move the microphones once.
Then, unfortunately, drones and airplanes can be heard.
During the eruption, sounds are heard that would be worth explaining. There is a lot of all kinds of white noise, which mainly comes from glowing slag that splashes in all directions when it falls to the ground around the crater. It was also interesting to hear when it rained on the lava, an unusually loud white noise filled the air. It may be heard for a while in this recording.
Quality open headphones are recommended while listening at mid volume.
Be careful, this recording starts quietly. But most of it is pretty loud, especially at lower frequencies.
If the media player doesn’t start to play, please reload this individual blog in a new tab or frame.

(mp3 256 kbps / 65,2Mb)

Recorder: Sound Devices MixPre6
Mics: Rode NT2a in MS & LOM geophones in X/Y axis (earth quakes) and parallel MKH8020/8040 in AB40 (eruption site)
Pix: Canon EOS-M50

Weather: Wind 2-4m/sec, drizzle rain, foggy & 5-8°C
(but on the recording site, gust up to 20m/sec and 15-35°C )
Location: 63.900428, -22.246934
Eruption site on Map.is

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Hjörleifshöfði is a 221 m-high inselberg in southern Iceland. It consists of palagonite. The mountain is located on the Mýrdalssandur outwash plain about 15 km east of the village Vík í Mýrdal, and was an island in the Atlantic Ocean several centuries ago (More info: Wikipedia).
I have very often visited this mountain, both those years when I was used to travel by bike in Iceland and now resent years when I am on my field recording trips.
But in recent years, mainly because of tourist traffic, it has not been so pleasant to stay there overnight to enjoy the natural soundscape, which can be a very different on each side of the mountain.
Thanks to COVID I got the opportunity on the 21st of June 2021 to record the soundscape on the west side without traffic noise from the main road, motor vehicles or tourists around me.
Even without traffic noise it has always been difficult to record this place because of the surf along the coast line which makes constant rumble in the background.
I arrived just before midnight. It was foggy but bright. This was last night before the summer solstice.
The weather forecast told me I would have more wind and even rain later in the morning so I quickly prepared the recording gear. I use the Kayak trailer behind the car to make a shelter from the breeze from the south and point the microphones toward the north in the middle of a big lupine field.
Most birds were mostly in the distance. But what makes the soundscape actually so interesting in this place is the redwing songs. They start their songs or themes differently from what I have heard in other places in Iceland. There are other places in Iceland where I have noticed this difference and it seems like it is somehow connected to places where lupine grows. These songs are also different between these „lupine locations“ e.g. Bæjarstaðarskógur in Skaftafell national park, while redwing songs sound pretty similar all over the country.
I have not investigated this in detail, but I have noticed this by listening to recordings from these locations and comparing them in spectrograms. What I need to do next is film them singing in these places to be sure I am actually listening to redwings (which is though 98% clear in my mind). Other things which make this a little bit difficult is the fact that not all birds sound similar in these locations so it is necessary to collect „closeup songs“ in good sound quality from several redwings to work with and investigate.
This is not my best quality recording, but it is almost impossible to record this place without traffic or surf noise. So I was just lucky to get this one.
Quality open headphones are recommended while listening at mid or low level
If the media player doesn’t start to play, please reload this individual blog in a new tab or frame.

(mp3 256kbps / 60Mb)

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040.  (Parallel AB) 
Pix: Canon EOS R

Location: 63.424336, -18.763861
Weather: Calm to breeze. Foggy, around 10 °C

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Snæfellsnes peninsula has long sand and gravel beaches, especially in the south.
These beaches can easily attract everyone who traveled there. So when I was there on the 1st of July 2021 I did a hike along the beach below the Langholt guesthouse (Garðafjara).
Surf is usually not interesting recording material and there are not many „surf recordings“ in my sound blog. But this beach had a special sound that night
I thought something was disturbing my hearing, but soon I noticed it was the gravel in the surf which made this sound. Instead to be almost constant pink noise, then the noise on this beach constantly changes with every wave. From brown noise to white noise.
As usual the recording gear is never far away so I record this interesting soundscape just before midnight. 

(mp3 256Kbps / 52Mb)

Recorder: Sound Devices MixPre6
Mics: Sennheiser MKH8020/8040 Parallel AB
Pix: Canon EOS R

Weather: Calm to 2m/sec, cloudy,  about 15°C
Location: 64.809722, -23.147333

 

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The eruption was in full action on the 17th of July 2021 and the weather forecast was fine, calm and dry when I decided to go and record at the eruption sites.
I decided to stay not near popular sightseeing places, so therefore I went by bike to get further away to another place at the lava field.
But when I arrived, there was a strong wind because both the eruption and the lava itself has its own weather system due to the heat in the area. Pollution was also high, so it was not easy to operate in the area.
Eventually I found a „good place“ where I had to block the microphones between rocks on the ground right by the glowing lava.
As soon as I pressed „Record“ the volcano stopped erupting and it did not erupt in the next few days, which is very typical for me.
It is quite descriptive of this eruption, although it is a small and beautiful „tourist eruption“, I have not been able to record the eruption itself these four times I have dragged equipment to the eruption sites. There have always been strong gusts and sometimes „small“ hurricanes around the volcano which have made sound recording very difficult. Plus, when it erupts it does not make much sound, especially when no water is involved in the eruption or the lava which would have made an explosion. But when the volcano is active the boiling lava sounds like boiling water in a huge pot.
Even though I could not record the eruption that day as was planned, I managed to record the lava itself without too much wind-, tourists chatting-, drones- and helicopter noise.
The lava did not seem to be moving while I was recording, but I could see embers in the cracks.
I have no clue what makes this „pop“ sound in the lava while I could not see it move. The sounds could be coming from the lava that was possibly rising when the liquid lava flowed under a thin shell crust. Or it just sounds like that when the lava cools down.
The gust rumbling sound in this recording sounds pretty similar as the eruption from the volcano so let’s play with with the imagination while listening.

  (mp3 256kbps / 56,3Mb)

Recorder: Sound devices MixPre6
Mics. Sennheiser MKH8020/8040 (Parallel AB40)
Pix:  Canon EOS R

Location:  63.886300, -22.230307
Weather:  Gusty, 15°C and 35°C at the microphone place, cloudy and high gas pollution.

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Recording Icelandic glaciers aims to be my main passion for the coming years.
Unfortunately, I feel I’m starting too late because the sounds have changed significantly over the last 20-30 years. It is because they have lost a lot of mass, especially on the edges of the glaciers where they mainly produce sound.
It is becoming increasingly difficult to get to places where a glacier is crawling because there are no roads or tracks near the places that are considered suitable for recording today.
Not enough. Most of the glaciers are within national parks and protected areas today. Therefore, I need to apply for a permit to go to various places within the national park to record.
Once in place, it is not a given that it is possible to record exactly where it would be best to get an interesting sound. It must be taken into account that glaciers are not playgrounds and they can be dangerous. Glacier lagoons’ coastline are also dangerous when large pieces of ice fall from glaciers and large icebergs flip over and break down in pieces.
Weather conditions are also important. I am used to record continuously for many hours, even days, so calm and dry weather most of the time is always on the wish list.  
Last summer Jökulsárlón lagoon and Breiðamerkurjökul glacier were my main targets. It was slightly more difficult than I thought in the beginning, mainly because I did not have a clue what microphones worked best for this project so I brought with me microphones for all kinds of situations which is a hell a lot of stuff. In the end it was my parallel MKH8020/8040 rig which worked best for this glacier project last summer. Mainly because glaciers are not so quiet and therefore microphones with the lowest noise floor are not so important . 
It takes me almost two hours to sail on pedal Kayak with all luggage to the location near the glacier. I started immediately to record with two recorders after arriving. Then it takes me almost a day to find the best location for the microphones. It was not the best place to get the highest quality of sound recording. But they were sheltered from the wind and in safe distance from big waves or tsunami from the lagoon.
This following recording is a part of a 20 hour recording on this location. 
WARNING. This recording has a wide dynamic range. It includes several blasts (especially at 6:34) which are very loud that can damage speakers, headphones or your hearing if played too loud.
As usual for nature recordings it has not got any process in post. Just add gain about 20dB. Therefore is clipping inevitable in the „blast“ at 6:34.
Quality open headphones are recommended while listening at low to mid level, or in speakers at low level.

(mp3 256kbps / 56,3Mb)
If the media player doesn’t start to play, please reload this individual blog in new tab or frame

Recorder: Sound devices MixPre6
Mics: Sennheiser MKH8020/8040 in Parallel AB40. Mixed50/50%
Pix: Canon EOS R

Location: 64.109285, -16.243593
Weather: 4°C 2-4m/sek, cloudy

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I was shocked last summer. Then I realized it was becoming increasingly difficult to get interesting recordings of glaciers. I was missing out on unique opportunities if I would not change my traditional methods of recording glacier sounds.
Glaciers that have so far been accessible with all kind of sound seems much quieter than before. Finding good places seems to be more difficult each year and to reach them with all of my equipment are getting even more difficult. Many glacier toes in Iceland seem to be turning into „dead ice“ at the toe end so they will not be crawling under its own weight anymore just lay where they are until they melt down.
One of this glacier which has gotten thinner, smaller and quieter each year is Svínafellsjökull glacier.
I spent three nights recording there last summer without recording anything „interesting“
The temperature varies between 2°C over the night, to 18°C during the day. During the night it melted little but it started to melt intensely at dawn and became very intense during the day, especially when the sun was shining on the glacier.
The following recording was made in a small „Ice cave“ in the glacier toe, 27th of May 2019. The time was around 8 AM, about an hour after the heat started to rice and the melting began. In this 27 minutes long recording  you will clearly hear the melting of the ice increase until I became afraid about the microphone and I stop the recording.
You can hear several times a deep rumble sound, probably because the glacier is crawling high in the mountain. Many other strange sounds are in this recording, some are known, while other unexplainable. I was never close by so it is not sound from me.  Some of them are loud, so be careful, do not listen to the recording on high level.
Other sound in distance are tourists, almost constant motorist traffic. But fossil fuel machines and humans mobility are sadly one of the reason for rapidly shrinking glaciers now a days.
Quality open headphones are recommended while listening at low to mid level, or in speakers at low-mid level.
If you are having problems playing this or other recordings on this blog, try to open each blog-post in separate new frame or tab.

(mp3 256kbps / 51Mb)
If the media player doesn’t start to play, please reload this individual blog in new tab or frame

Recorder: Sound Devices MixPre6
Mics: Sennheiser MKH8020/8040 in Parallel AB40
Pix: LG G6
Location: 63.996493, -16.874061
Weather: Calm, light clouds, around 10°C

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