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By Łukasz Januszkiewicz
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We used:
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Step two - On The Stage
Both camera and main ZM-1 were located in the middle of the orchestra, in the line with string instruments.
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- Microphone placement.
The main ZM-1 microphone was positioned approximately 20 cm below the camera.
Backup ZM-1’s were positioned on the right and on the left side of the main ZM-1 (distance of 4-5 meters). There was also one mic just right in front of the choir.
- The final setup
Recordings made with 6DOF Development Kit by Zylia
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Step Three – Recording our perfect 360 movie
… and hiding behind the curtain :-)
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Step Four - Video And Audio Post-processing
Captured video was stitched and processed with Kodak PIXPRO SP360 software. The recorded audio was manually synchronized with the processed video. Then we used our software to convert ZM-1 recorded tracks into 1st, 2nd and even 3rd order HOA (Higher Order Ambisonics) signals. Finally, we merged the video and the 1st order Ambisonics audio track into one MP4 file and uploaded it to YouTube 360 service*.
*At this moment YouTube 360 supports only 1st order Ambisonics audio.
*At this moment YouTube 360 supports only 1st order Ambisonics audio.
360 movie with 3D sound - The final effect
We have recorded a great performance of orchestra and choir with a newest microphone array technology. Final effect is astonishing! Our 360 movie gives you a chance to participate in this beautiful event, and actually be in the middle of the stage.
Video will be available soon.
How to turn a room into a recording studio?
Video will be available soon.
How to turn a room into a recording studio?
6 Comments
By Jakub Wasilewski
Nowadays the entertainment industry is more and more interested in immersive experiences when it comes to movies, video games and music. Along with already quite common 360 degree videos, there is also a growing demand for 3D audio. Surround systems like 5.1, 7.1 or cinematic 22.2 can surely deliver impressive effects, but none of them is an actual full spatial audio system. Mostly because once sources had been recorded, there is no way to change their positions freely.
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In order to obtain a real spatial audio, an entirely different approach is needed. An approach that should not perceive sound as list of spatially speaker-fixed sources, but as a whole soundfield instead. It is where an Ambisonics technique comes in handy. But before explaining what it actually is, let me begin with a quick overview of the Ambisonics.
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At the same time when the music audience was thrilled for the first time with “The Dark Side Of The Moon”, an Ambisonics idea has been conceived by Michael Gerzon from the University of Oxford. He realised, that using three figure-of-eight microphones and additional omnidirectional one, he can make a soundfield recording that can be expressed as four speaker-independent channels, the so called B-Format. It allows to store soundfield information in four channels and decode it later into specific speaker setup.
As you can probably imagine, representing a whole soundfield using only four channels is not optimal. Spatial audio resolution is not very impressive when using a B-Format which is only 1st order of Ambisonics, In the 1970s It was difficult to achieve higher audio resolution due to the level of technical advancements at that time. Despite the fact that the Ambisonics technique was grounded on solid technical and mathematical foundation, it has not gained much attention or commercial success.
In order to obtain higher orders of Ambisonics, which provides better soundfield representation and spatial resolution, a dense microphone array and advanced signal processing algorithms are needed. Both of these advancements are the cornerstones of the new recording system developed by ZYLIA.
ZYLIA 3rd order Ambisonics microphone
Fig. ZYLIA ZM-1 - a 3rd order Ambisonics microphone.
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The ZYLIA ZM-1 microphone array is capable of recording sound in the 3rd order Ambisonics format. Recording in such format will be soon very relevant due to the recent announcements by Google and Facebook to add support for higher order Ambisonics playback in their players. Soon it will be possible to enjoy amazing spatial audio recordings on any web-enabled device.
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You need ambisonics microphone? Just try ZYLIA!
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