One additional trick that we used for the installation at the Tribeca festival was to add a low frequency effects signal through a device called a SubPac, a backpack that translates the LFE into body vibrations. So we could export our complete object-based 3D audio mix from the audio workstation to the game engine via a single file.īBC R&D - A Virtual Reality Fairy Tale premieres at Tribeca Film Festival
#Bbc binaural sound software#
Our software for binaural rendering and handling the Audio Definition Model was then built into plug-ins for the Unity game engine, which was used by VRTOV to produce the graphical content. Using the Audio Definition Model, we could export the audio sources and their dynamic position data into a single WAV file from the binaural production system. Therefore we needed a workflow that allowed them to build an interactive visual world around our 3D sound scene. We created the audio first and then commissioned the wonderful Oscar Raby and his VRTOV studio to help us to turn it into a VR experience. The big difference between this and previous projects was that this was not just 360˚ video production but virtual reality, where a 3D world was created using computer graphics and the listener could move within the scene (within a limited range).
It was integrated with a synchronised 360˚ video viewer to allow for spatial alignment of visual and sound sources, as previously used on the Unearthed production for BBC Taster. Our binaural production system, previously used to create the Fright Night radio dramas, was used to make a broadcast quality sound mix for headphones, using real-time tracking to adapt the 3D audio scene to the listener’s orientation. To achieve this we built two major components of our audio research work into a production workflow for VR, dynamic binaural rendering and the Audio Definition Model.īBC R&D - Audio Definition Model Software (Open Source) With the Turning Forest VR project our aim was to demonstrate the impact that high-quality 3D sound production can make in virtual reality content. headphone sound that gives a 3D spatial impression and updates according to your orientation. There are now tools available for creating and distributing 360˚ and VR experiences with dynamic binaural sound i.e. There has been a lot of discussion about the importance of sound in virtual reality this year.
I also give a little more technical detail on how the 3D sound was created.
#Bbc binaural sound full#
The full episode is available on the iPlayer but the piece on the Turning Forest is embedded below. They give a great introduction to binaural sound and the work that we're doing on this project and beyond. Eloise Whitmore and Edwina Pitman produced a short audio feature (above), telling the story of how The Turning Forest went from research project to film festival.īBC Click recently featured The Turning Forest after its world premiere at Tribeca. The original production was one of three short dramas that were commissioned by the EPSRC Programme Grant S3A: Future Spatial Audio for an Immersive Listener Experience at Home (EP/L000539/1) and the BBC as part of the BBC Audio Research Partnership.
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