We also needed the rig to mount to a free-standing monopod or easily attach to fixtures in the environment. Portable: We needed to combine video and audio components in the same self-contained rig and - as much as possible - hide the audio equipment from camera view. We wanted to build a run-and-gun rig that was:Īffordable : It had to cost less than $2,000. In the next phase, we’ll explore what it takes for video and audio teams to produce fully in tandem. As part of the first phase of our J360 grant, we are establishing a baseline for what a solo 360-degree video producer can manage in the field. There are many different production scales for 360-degree content, from cinematic multi-camera rigs to handheld recorders. Building a 360-degree video rig for the ‘run-and-gun’ producer While we don’t believe immersive audio and video will replace their less-spatialized counterparts anytime soon (if ever), we want to have these 360 recording approaches in our toolbox. Now, NPR Visuals and NPR Audio Engineering are interested in combining the forces and collaborating on stories that benefit from both 360-degree audio and video. Some NPR Member stations and affiliates have also experimented with 360-degree audio and video, including: KCRW, Nebraska Educational Television, Classical MPR, The Current, WBUR, Curious City/WBEZ and NHPR. Wadada Leo Smith: Awakening Emmett Till (360-degree video and audio).360 scene from the 2017 Women’s March in partnership with Jovrnalism (360-degree video).360 scene from 2017 Inauguration in partnership with Jovrnalism (360-degree video).Standing at the Edge of Geologic Time (360-degree photography and audio).Behind the Scenes at the Tiny Desk with Wilco in partnership with RYOT (360-degree video).In more recent years, NPR’s Visuals and Music teams have done a few experiments with 360-degree video and audio, including: The four multi-tracked omnidirectional mics allowed him to encode for surround sound (not audible on most household radio devices). NPR audio engineer Josh Rogosin shows off his custom surround sound rig before recording Voodoo rituals in Cove, Benin in 2004. One experiment with a technology called “Neural Surround Sound” in the mid-2000s enabled listeners with a surround sound setup to hear the mixes. NPR audio engineers have been experimenting with custom surround and spatial audio recording rigs for years, even though those immersive sounds in stories would be lost on listeners using household or car radios. Previous NPR experiments with immersive audio and video This guide provides a slightly deeper dive into these audio types.
This is the type of spatial audio we’re most interested in experimenting with as part of the J360 grant. When you move your head in one direction or another, the audio changes to reflect that movement. The industry refers to this as “head-locked” audio.Īmbisonics or 3D audio delivers a fully 360-degree soundscape that is responsive to a visual field. In fact, it is often recorded with a microphone that mimics the size and shape of a human head ! As demonstrated in this video, you can hear in every direction, but the audio is not responsive to user input - if you move your head, the audio doesn’t change accordingly. It models the way sound reflects around the head and within the folds of the ear.
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You’ve probably heard surround sound in movie theaters, where it’s presented by companies like DTS, THX and Dolby.īinaural audio delivers a fully 360-degree soundscape through a specially-encoded stereo file that has to be experienced through headphones. 5.1, 7.1) for playback on numerous speakers that literally surround an audience. Surround sound audio - in most cases - relies on engineers to mix multiple audio channels (e.g.
In headphones, you’d be able to easily place sounds on a two-dimensional axis, from left to right. It’s recorded in discrete left and right channels. Stereo audio is the most basic spatial audio. There’s a range of complexity for spatial audio: In general, the term “spatial audio” is used to broadly mean audio that is not mono (where, in headphones, you hear the exact same thing on both sides). This guide captures some of our early findings and includes a sample rig as well as tips on recording, editing and publishing. Since winning a grant through the Journalism 360 Challenge last summer, we’ve experimented with bringing 360-degree video and spatial audio together. Immersive recordings, whether in the form of virtual reality or 360-degree video, have an unparalleled ability to transport an audience and give them a sense of presence and dimension in a new place.
NPR tested a ‘run-and-gun’ 360-video and audio rig there in September. A foot of water, contaminated by sewage, blocks passage in Florida, Puerto Rico, over a week after Hurricane Maria.
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