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Posts Tagged ‘Svanur’

IMG_2200

This two midsummer recordings were made around four o´clock in the morning 15th of July 2017 nearby Arnarholt farm in Stafholtstungur, in west of Iceland. It is recorded on two stereo channels with two different microphones because usually every time I recorded in this place the recordings has been disturbed by traffic noise all night long. But somehow for some unexplained reason no car went around nearby road for more than two hours, so I got a wonderful recording this morning.
I placed those two microphone rigs very close to each other and pointed them toward north. Afterwards I could not decided which of those recordings were better so it is yours to decide which you like.
There are many bird species in this recording. Common Snipe, Golden Plover, Whimbrel, Common Redshank, Black Taled Godwit, White Wagtail, Black headed Gull, Winter Wren, Northern Wheatear, Snow Bunting, Rock Ptarmigan, Common Starling, Redwing, Great Northern Dever, Whooper Swan, Graylag Goose and probably other species. Birds like Starling and Redwing are flying between branches in nearby trees.

My favorite microphones for nature recordings are Sennheiser MKH20 an omni-directional condenser microphone and Rode NT1A (slightly modified), a large capsule cardioid polar pattern studio condenser microphone. Both these mics have lowest self-noise available on the market.
I am used to use MKH20 in AB setup which mean the mics are in 40-45cm spaced parallel position (AB40). Then I turn the capsules 2-5° outward which gave me sometimes slightly „wider or more open space feeling“. This setup give me a stereo recording, 360° surround the rig.
My second best omni-directional ultra low noise mic for nature recordings is AT4022 but it does not sound as „musical“ or „natural“ as MKH20, so it is not as often in my tool box,
Cardioid mic detect sound mainly from one direction. so I use NT1A in different circumstances.
Lets say I like to record a birdsong. At the same time it is disturbed with unwanted noise, coming from another direction like waterfall, river flow, surf or traffic noise. I can place the backside of the cardioid mic to the noise source which mean I will get less of the unwanted noise and more of the birdsong.
In last two or three years I have not used NT1A in ORTF or NOS setup for outdoor recordings. But instead use AB4, same as for MKH20, which seems to give less phase error for the sound behind the rig.

These two recordings are NOT good examples for this two different mics in critical circumstances because no car passed by behind the rigs and most of the birds activity was also front of the rigs. But it gives a nice insight how this two different mics sounds and how the self-noise act in „quiet“ nature recordings.
NT1A was inside Rycote Cyclone + fur. MKH20 was inside Rycote WS2 windshield + fur. Both rigs are in AB40 +3°
I use MixPre6 in this recording. There is no doubt, the new Sound devices Kashmir mic preamplifier is ultra low noise and a sweet step forward to get better field recordings.
The HPF was at 40Hz and the gain was at 50dB for NT1A and 43dB for MKH20. The gain settings mainly get this arrangement because then both rigs sounds have equal level in the headphones while I was recording. In post the gain was increased almost 30dB on both stereo channels, up to -10dB.
Specrogram shows „all“ frequencies was bellow 8Khz so to lower unwanted mic self-noise I pull everything above 10Khz down with EQ (-5db @ 11Khz & -30dB @ 15Khz) .
This is a „quiet“ recording which mean you should listen to it at low level in quality headphones or speakers in quiet place.

NT1A recording
(mp3, 256kbps / 50,6Mb)

MKH20 recording
(mp3, 256kbps / 50,6Mb)

Here are two shorter version of this recording but now without high frequency cutoff and the gain level is normalized up to 0dB, so it should be easy to hear the mic self-noise in low quality headphones and PC amplifiers.
It is also easy to notice that MKH20 is covering 360° of the surround soundscape, while NT1A is only covering 180° with less bird songs and other activity.

NT1A. Without high freq cut off, normalized to 0dB
(mp3, 256kbps / 11Mb)

MKH20 Without high freq cut off, normalized to 0dB
(mp3, 256kbps / 11Mb)

Recorder: Sound devices MixPre6
Mics: Rode NT1a and Sennheiser MKH20 (AB40 setup)
Pix. Canon EOSM

Location: 64.673460, -21.629304
Weather: Calm, cloudy, ca. 7°C

Auglýsingar

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IMG_2200

Last summer I spend one week at Raufarhöfn, a small village in north east of Iceland, close to the arctic circle. Most of the time it was a fool‘s weather for „quality“ recording. But anyway, I recorded almost 6 to 10 hours every night close to the sore. Most of theese recordings contains rumbling wind noise, but sometimes – very few times, I got what I was looking for.
Here is one of them, recorded 17th of June 2016.
It is early morning. The clock is around four. Birds are busy to protect and teach their young to search for food. Shortly after the recording starts, you can hear a fisherman pass by on his car on way to the harbor. Then later, the fishing boat goes, and passes by on the way to the sea. It takes a long time for the enginenoise to disrepair.
This is a peaceful recording. A typical midsummer morning soundscape at the arctic circle, where the sun never goes down. Many bird spices are in this recording, but mostly Common Eider and their youngs. Also you can hear Oystercatcher , Golden Plover, Purple Sandpiper, Red Necked Phalarope, Whimbrel, Common Snipe, Redwing, Snow Bunting, Svan, Great Northern Diver, Northern Fulmar, Kittiwake, Raven and probably may other.
Quality open headphones are recommended while listening at low to mid level.

(256kbps / 55Mb)

Recorder: Sound Devices 788
Mics. Sennheiser MKH20 (AB40)
Pics: Canon EOS–M

Location: 66.451296, -15.946621
Weather: Light gust, cloudy

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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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