Welcome to immersive livestream
of WETI 70th anniversary concert

Experience 4k 360 live vision with immersive,
16-channel Ambisonic audio

Recommendations

For best audio experience, it is highly recommended to use headphones. As for video experience, we recommend using a VR headset, e.g. Oculus Quest 2, HTC Vive or similar. Headsets for mobile phones are very good as well!

For best experience, we recommend using Chromium-based web browser, like Microsoft Edge, Google Chrome or Opera. In our experience, Microsoft Edge performs most stable with this livestream. Firefox has some issues with smooth playback, and the livestream will not work in Safari browser due to lacking OPUS codec support.

About the concert

2022 is the year of the 70th anniversary of the Faculty of Electronics, Telecommunications and Computer Science of the Gdańsk University of Technology. On this occasion, a special anniversary concert has been planned with the participation of Anna Fabrello – soprano, the BalticAlians Chamber Orchestra and the Academic Choir of Gdańsk University of Technology.

Concert's program:

PART I

  1. Jelena Junek, „Bogorodice Diewo”
  2. Vytautas Miškinis, „O salutris Hostia”
  3. Giovanni Pierluigi da Palestrina, „Sicut Cervus”
  4. John August Pamintuan, „De profundis”
  5. Bengt Ollen, „Trilo”

PART II

  1. John Rutter, “Magnificat”

The main page of the event: https://eti.pg.edu.pl/70-lat/wydarzenia/koncert-akademickiego-choru-politechniki-gdanskiej-10032022

Livestream

To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video

This livestream will be uploaded in higher resolution to YouTube channels of Multimedia Systems Department and Academic Choir of Gdańsk University of Technology. We cordially invite you to subscribe to these channels!

We also ask you to fill the questionaire about this livestream. It will be a great help for us to improve in future projects!

Ambisonics and binauralization

Ambisonics uses Spherical Harmonics (depicted on the right) to create a full-sphere 3D representation of the audio content. The number of Spherical Harmonics, as defined in the Ambisonic order, determines the spatial accuracy of the audio rendering. In this livestream you can listen to third-order Ambisonics, corresponding to 16 Spherical Harmonics and 16 audio channels. Those channels are further binauralized with dynamic head rotations integrated with the rotation of 360 video. The binauralization utilizes HRTF (Head-Related Transfer Functions) in order to provide immersive, spatial audio.

About the project

This livestream is possible thanks to Insta360 Pro 2 camera and Zylia ZM-1 microphone, as well as software tools: OBS Music Edition, Envelop Earshot and HOAST360.

The Open Broadcaster Software Music Edition – OBS ME – is developed by pkviet under GNU GPLv2 license.

The Envelop Ambisonic RTMP Streaming Higher-Order Transcoder – Earshot – is developed by Roddy Lindsay under GNU GPLv2 license. The Higher-Order Ambisonics Streaming 360 video player – HOAST360 – is developed by Thomas Deppisch and Nils Meyer-Kahlen under GNU GPLv3 license.

The livestream technical setup was created by Bartłomiej Mróz and Dr Piotr Odya.

The server setup and administration is managed by Prof. Grzegorz Szwoch. The livestream website is designed by Paweł Spaleniak.

Special thanks for help with this project to Roddy Lindsay (Envelop), Przemysław Danowski (Chopin University of Music in Warsaw) and Marek Kabaciński (Zylia).

  1. Headphones: https://publicdomainvectors.org/en/free-clipart/Studio-headphones-vector-image/12189.html
  2. VR headset: https://hoast.iem.at/
  3. Mobile phone headset: https://m5shops.tk/ProductDetail.aspx?iid=567170942&pr=80.88
  1. Spherical harmonics: https://hoast.iem.at/
  2. Head-related transfer functions: https://en.wikipedia.org/wiki/Head-related_transfer_function#/media/File:HRTF.svg
questionaire