G’AUDIO WORKS, A SPATIAL AUDIO PLUG-IN FOR VIRTUAL REALITY

G’AUDIO WORKS, A SPATIAL AUDIO PLUG-IN FOR VIRTUAL REALITY

The VR and 360 degree video universe is crowded with solutions, all promising the best experiences in the world. Now there is a new audio solution for Cinematic VR and 360-degree video, Works, from G’Audio.

G’Audio Works, a spatial audio plug-in for VR

Filmmakers and sound engineering professionals were able to offer life-like hearing experiences to the end user through the use of G’Audio Works, a plugin which can be seamlessly added to Pro Tools.

We wrote here, before, that Virtual Reality is highly dependent on sound positioning for complete immersion, something that has been missing from some solutions. Dirac Research presented at CES 2017 one solution it says offers the proper way to reproduce sound in a virtual world. They are not alone though, as G’Audio Lab also has technology that according to the information available ushers sound into a new dimension.

Officially launched recently, G’Audio Works, a spatial audio plug-in for Digital Audio Workstation, has been extensively tested before launch. During its beta period, states the company,  Works proved to enable filmmakers and sound engineering professionals to provide life-like hearing experiences to the end user, by placing them in the soundscape and accurately reproducing the direction and position of sounds in a given environment.

“We’re passionate about empowering VR content creators across the film, animation and gaming industries to produce more immersive experiences, which require fully interactive 3D audio to support 3D video components,” said Henney Oh, CEO and founder of G’Audio Lab. “Works delivers unparalleled freedom for mixing multiple audio signals to create the most realistic sounds possible.”

Henney Ho brought to the company his 15 years’ experience working with advanced audio technologies and a portfolio of more than 1000 worldwide patents, most of them related to audio. Henney was a research professor at Yonsei University and went on to hold executive positions at several companies including LG Electronics where he served as chief research engineer and led projects to develop and commercialize audio technologies including Clear Voice and Infinite Sound.

Henney holds a bachelor’s degree, a master’s degree and a doctorate in electrical and electronic engineering from Yonsei University in Seoul, Korea. He now serves as chairman of the audio sub-group for UHDTV broadcasting standards in Korea and over the past decade has been actively involved in many high-profile international standards organizations, including the Moving Picture Experts Group (MPEG), ITU Telecommunication Standardized Sector (ITU-T) and Advanced Television Systems Committee (ATSC).

All that experience  is reflected in G’Audio and the G’Audio Works plugin. Incorporating the company’s patented binaural rendering technology, which was selected as part of the Moving Picture Experts Group’s 3D Audio international standards (MPEG-H 3D Audio), G’Audio’s suite of tools apply head-related transfer functions (HRTFs) data to tailor sound per the average human’s head and ears to simulate actual hearing mechanisms.

G’Audio Works, a spatial audio plug-in for VR

Guaranteeing accurate sound reproduction, Works can be seamlessly added to Pro Tools as an AAX plug-in with the following features and capabilities at no cost:

  • Supports the simultaneous use of three audio signals to create realistic sound with environmental ambience:

○ Simple mono tracks to represent sound coming from objects

○ Traditional 2.0 or 5.1 channel-based tracks

○ Ambisonics to deliver sounds captured by 360° microphones

  • Enables users to edit as they watch in order to synchronize the reference video and audio in head-mounted display (HMD) view, Panoramic view or Map view
  • Supports offline bouncing so users can export work 30 times faster than realtime bouncing, which requires the video file to play in full

The Cinematic VR portfolio from G’Audio includes Works and G’Audio Sol, a spatial audio player specifically designed to render cinematic VR and 360° videos, that boasts the following features and capabilities:

  • Available in SDK format and can be easily integrated into mobile devices, using minimal processing power and low latency while delivering the best sound quality possible
  • Is the only player that renders any combination of the following audio signals:

o Simple mono tracks to represent sound coming from objects

o Traditional 2.0 or 5.1 channel-based tracks

o Ambisonics to deliver sounds captured by 360° microphones

  • Reflects the listener’s head orientation and interactive motions with real-time calculation of relative sound source positions
  • Supports both HTML Live Streaming (HLS) and Dynamic Adaptive Streaming over HTTP (DASH) formats, and is the only player to support G’Audio’s proprietary GAO format, a hyper-real audio format designed to deliver 3D audio at its fullest potential
  • Applies head-related transfer functions (HRTFs) data to tailor sound per the average human head and ears to simulate actual hearing mechanisms
  • Leverages G’Audio’s own binaural rendering technology, which is part of the Moving Picture Experts Group’s 3D Audio international standards (MPEG-H 3D)

When Works is used in combination with G’Audio Sol, VR sound becomes more interactive than ever by reflecting the listener’s head orientation and interactive motions with real-time calculation of relative sound source positions. Works and Sol are, according to G’Audio, the only tools in the industry that support both First Order Ambisonic (FOA) format and G’Audio’s proprietary GAO format, a mixture of mono, channel, ambisonics based audio signals designed to deliver 3D audio to its fullest potential.

“While today’s 3D movies and interactive video content are successfully immersing users in a simulated experience, there’s still a void in the market for audio solutions that can deliver truly interactive sound,” said Oh. “We are filling that void by offering the interactive 3D audio tools needed to cultivate better and more dynamic sound experiences with any regular headphones.”

In fact, what Works promises is “the third dimension sound with interactivity”, which is, adds the company, “more advanced than surround sound”. While it’s possible to identify sounds coming from behind you, above you, or at your sides using 3D sound, what’s truly needed for a complete VR experience is interactive 3D audio. Sound localization should be in effect not only for moving sound sources in a scene, but also for the listener, who has the ability to move about freely in a virtual environment. Thus, in order to provide a truly realistic experience, sound should be adjusted for in real-time following the movement and head orientation of the user.

Works is available to download for free from the company’s website.

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