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Listening to art.
Playing with audio.
Sounding out technology.
Composing in code.

tag: field-recording

Drones of Drones / Drones by Drones

The unmanned aerial field recordings of Tim Prebble

We already have our jetpacks. We just happen to call them drones. Sure, these drones don’t carry us into the sky the way we were promised in our childhoods, but they carry with them our eyes, our imaginations, and our ambitions. Now that we live so much of our lives online, is it much of a stretch to suggest that drones take us up in the air?

Thanks to Tim Prebble, drones also carry with them our ears. Prebble is an accomplished field recordist who lives in Wellington, New Zealand, where he runs Hiss and Roar (hissandaroar.com), a sound design library of everything from fireworks and metal resonance to chimes and tortured pianos. His lengthy sound-design film credits include Antarctica: A Year on Ice, 30 Days of Night, and The World’s Fastest Indian. Prebble this week posted on Facebook a single photo of a small consumer-grade (i.e., non-military) drone carrying an audio recording device (the second still image down below). When I asked him for more details of what he was up to, he sent me a lengthy account, and many more photos, plus the two videos shown here. The video up top is a quick summary of experiments he’s been doing recording with drones, and recording the sound of drones. It’s a Doppler paradise.

Best experienced in headphones, the above video shows various settings for the drone recording, including an opening shot from the drone’s own perspective, while recording the audio effect of it passing by several microphones. Later on in a subsequent clip, the three-dimensional motion can be experienced as three-dimensional sound: stereo manages left and right, while relative volume accounts for foreground and background. Throughout, the primary sound is that of the drones themselves, a sound Prebble likens to that of bees. The results are striking.

In experimental electronic music, the word “drone” is virtually a genre unto itself, one that explores stasis in everything from field recordings to sine waves to layers of ambient textures. Since the word “drone” has come, popularly, to refer to flying devices, jokes are made regularly about “drones of drones.” Prebble has managed to make the joke real, and the result is no joke — it is alternately eerie and warm, anxious and majestic.

Here is Prebble himself, from an email he sent to me with permission to share, on what he is developing:

“The Bees Sound Angry”

While I’d seen plenty of drones & footage shot with them online, I never really appreciated their potential until I worked on a short film project recently where we wanted aerial footage but a helicopter was unaffordable. We ended up hiring an experienced drone pilot and after the first shoot I began dreaming about their potential, for image but also for sound.

DroneTP01

Once the project was finished I decided to get myself a quadcopter, a DJI Phantom 3 Pro. My first experiments were focused on technically learning to fly it, but also learning to deal with the discombobulation of having a set of eyes that can move remotely in three dimensions. I consider a camera drone akin to having a set of tracks & dolly (or a camera crane) which can move in any of the three dimensions without the constraints — the first video I shot was effectively a vertical tracking shot from outside my house…

One aspect of using a drone that can be problematic is that it tends to attract people, and avoiding slack jawed observers in shots can be a challenge. But it is often the sound of the quadcopter that first draws peoples attention – if you haven’t heard one close up, then the best description I can think of is that they sound like a small swarm of angry bees, and when you do fast movements the bees sound very angry! Ever since that first drone shoot I’ve been fascinated by quadcopter sounds, which led me to this experiment:

DroneTP02

From a sound designers perspective I LOVE the idea I can control & perform movements with this swarm of angry bees, so the first idea I am pursuing is to capture a library of sound effects, much as I would for a vehicle for a film. I am capturing a lot of variations of quadcopter start, take off, away, hover, approach and land, as well as doppler passbys & moves at various speeds. While the resulting library will be useful for practical purposes it will also be rich source material for manipulation & processing….

DroneTP03

DroneTP04

But as with any vehicle recording, exterior recording is only half the story. When recording vehicles I happily capture onboard perspective sound to multitrack; placing mics in the engine bay, near the exhaust, near tyres and inside the cabin. Effectively capturing constant perspective, isolated elements to be rebalanced as per the needs of the film.

So that first photo above was an attempt at recording onboard, constant perspective quadcopter sounds. I’d first thought of using a pair of tiny DPA4060 lavalier mics but the recorder soon became the issue eg my Sound Devices 722 recorder weighs 1.2kg & while the Phantom 3 is powerful it was never going to carry more than its own bodyweight as cargo. So next I tried the Sony PCM D100, rigged to hang below the drone.

The results were surprisingly good – there was some wind noise, a 150Hz HPF got rid of most of that but more layers of Rycote wind protection will achieve that better & at the source. There was also a very small amount of motor whine & electrical interference from the camera gimbal, but once the rotors are working that sound is masked. The next iteration of rigging I suspended the recorder on rubber bungy rather than string, to avoid transmission of any vibrational noise, and I also experimented with different lengths, attempting to place the recorder & mics further from the prop wash.

DroneTP05

A secondary sound recording idea I am pursuing with the drone is purely as a transporter. Imagine placing your mics in the top of a 1000 year old Kauri tree, or on a small island in a lake. Both would potentially provide unique ambience recordings, but getting the mics into place is difficult. So I’ve been thinking about whether there is a way to have the drone carry my recorder to such locations, safely land & power down to allow clean ambience recording, and then fly home. The recorder hanging below the quadcopter means that landing is difficult – I’ve avoided this issue so far by hovering the drone within arms reach & simply grabbing it & powering off. With the extra weight I would want to be VERY confident before risking losing my drone & recorder – if it toppled over while landing then it would be a very tough decision to either abandon it, or risk life & limb to retrieve it!

DroneTP06

Suspect we will be seeing more ads like this in future!

More from Prebble at soundcloud.com/timprebble and hissandaroar.com.

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… Shanghai … A Rainy Night in Shanghai … A Rainy …

A loop in progress by Samuel L. Jetson

The track is described by the musician who made it, Samuel L. Jetson, as “a looped arrangement for a short sample from field recording.” Listening into the loop, you hear what seems to be the rough static of precipitation, the intransigent melodies of car horns, and the echo of urban space. Would those associations be clear to the listener without the provided title, “A Rainy Night in Shanghai”? Perhaps not, but the one-line summary combined with the four minutes of audio certainly opens a window into a hypnotic state.

Track originally posted for free download at soundcloud.com/samuel-l-jetson. Jetson is Sam Jets of Benton Harbor, Michigan.

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Disquiet Junto Project 0183: Stereo Midnight

Insert something that plays across the stereo spectrum in an after-dark field recording.

3011888235_1fa37d2c8a_z

Each Thursday in the Disquiet Junto group on SoundCloud.com and at disquiet.com/junto, a new compositional challenge is set before the group’s members, who then have just over four days to upload a track in response to the assignment. Membership in the Junto is open: just join and participate.

Tracks will be added to this playlist for the duration of the project:

This assignment was made in the early afternoon, California time, on Thursday, July 2, 2015, with a deadline of 11:59pm wherever you are on Monday, July 6, 2015.

These are the instructions that went out to the group’s email list (at tinyletter.com/disquiet-junto):

Disquiet Junto Project 0183: Stereo Midnight
Insert something that plays across the stereo spectrum in an after-dark field recording.

This project is the fifth in an ongoing occasional series that focuses on late-night ambience. Collectively these nocturnal endeavors are being called “One Minute Past Midnight.” No one’s work will be repurposed without their permission, and it’s appreciated if you post your track with a Creative Commons license that allows for non-commercial reuse, reworking, and sharing.

The steps for this project are as follows:

Step 1: The primary goal of this project is to explore techniques to insinuate sound in a pre-existing field recording. First, select a track from one of the initial three projects in this series: #0160 from January 22, 2015, #0163 from February 12, 2015, and #0170 from April 2, 2015. All three of these previous projects involve field recordings made of the sound one minute past midnight:

http://disquiet.com/0160/
http://disquiet.com/0163/
http://disquiet.com/0170/

Step 2: When choosing, per Step 1, a pre-existing track, confirm that the track is available for creative reuse. Many should have a Creative Commons license stating such, and if you’re not sure just check with the responsible Junto participant.

Step 3: The goal is to insert a sound — whether realistic, like a plane or an animal, or fantastic, like a UFO — into the existing track so that it sounds like it is moving around in the stereo spectrum. Despite the inserted audio, the completed track should retain its inherent late-night ambience.

Step 4: Upload your completed track to the Disquiet Junto group on SoundCloud.

Step 5: Then listen to and comment on tracks uploaded by your fellow Disquiet Junto participants.

Deadline: This assignment was made in the early afternoon, California time, on Thursday, July 2, 2015, with a deadline of 11:59pm wherever you are on Monday, July 6, 2015.

Length: The length of your finished piece should be one minute.

Upload: Please when posting your track on SoundCloud, only upload one track for this assignment, and include a description of your process in planning, composing, and recording it. This description is an essential element of the communicative process inherent in the Disquiet Junto. Photos, video, and lists of equipment are always appreciated.

Title/Tag: When adding your track to the Disquiet Junto group on Soundcloud.com, please include the term “disquiet0183-stereomidnight” in the title of your track, and as a tag for your track.

Download: It is preferable that your track is set as downloadable, and that it allows for attributed remixing (i.e., a Creative Commons license permitting non-commercial sharing with attribution).

Linking: When posting the track, please be sure to include this information:

More on this 183rd Disquiet Junto project (“Insert something that plays across the stereo spectrum in an after-dark field recording”) at:

http://disquiet.com/2015/07/02/disquiet0183-stereomidnight/

More on the Disquiet Junto at:

http://disquiet.com/junto/

More on the One Minute Past Midnight series at:

http://oneminutepastmidnight.com/

Join the Disquiet Junto at:

http://soundcloud.com/groups/disquiet-junto/

Disquiet Junto general discussion takes place at:

http://disquiet.com/forums/

Photo associated with this project by Blake Danger Bentley used thanks to a Creative Commons license:

https://flic.kr/p/5A9Hrv

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Sonic Color and Post-Drone Music

An exemplary track by Darren McClure

There are more than enough drone composers at work that we can begin to really appreciate post-drone music. Drone composers have opened our ears to works of ecstatic stasis, in which micro-shifts in texture and tone take center stage. In post-drone music, as exemplified by the exceptional “Yellow” from Darren McClure, those same elements are brought back into a more traditional compositional format, with a structure of give and take, in which thematic development plays a substantive role. The track is from McClure’s album Primary Locations, which was released earlier this month on Dragon’s Eye Recordings. Each of the tracks on Primary Locations investigates the sonic equivalent of the visual spectrum, and also comprises field recordings consistent with the theme. “Yellow,” for example, includes audio recorded on a “metal overpass supporting train lines.” This explains the rough shudder and brief snippets of bird song, among other facets of the piece.

Track originally posted at soundcloud.com/dragonseyerecordings. More from McClure at darrenmcclure.bandcamp.com and soundcloud.com/darrenmcclure.

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The White Noise of Summer

Leslie Rollins in the field

This is not an industrial variant on synthesized white noise. It is not a composite of fractured random sonic particulate across the audio spectrum. Well, it is, but it isn’t synthesized; it isn’t the result of software or hardware. This crunch, this rumpled-paper sonority, this harsh, brush-like texture — it is a simple field recording. The subject of the microphone is the interaction of wind and grass. Writes Leslie Rollins, of Berrien Springs, Michigan, in a brief accompanying note:

A recording of wind moving the tall, brittle grasses which occupy the dividing line between the sandy shore and the beginning of dune elevation in Warren Dunes State Park. It was a blustery day with constant wind rustling the stalks. I was able to wedge the two contact microphones at the base of two clumps and they held them, almost like a clothes pin, while the wind whipped the tops. I was surprised how sharp and pointy the drier stems were as they jabbed me while I got the microphones in place.

Perhaps most remarkable is the sheer length, the uninterrupted consistency.

20150611-grass

Track originally posted at soundcloud.com/337is. More from Rollins/337is at facebook.com/337is.

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