Arts, Design and Technology Research Conference Dr Bruce Wiggins Signal Processing Applications Research Group University ...
Introduction <ul><li>Surround sound is now commonplace, with the standard presentation format being 5.1 </li></ul><ul><li>...
Ambisonics <ul><li>Ambisonics has always been a system capable of  single mix, multiple reproduction . </li></ul><ul><li>T...
My Research in Pictures! <ul><li>Applying heuristic search techniques to solve the irregular speaker problem. </li></ul>
My Research in Pictures! <ul><li>Applying heuristic search techniques to solve the irregular speaker problem. </li></ul>Tu...
Using HRTF Data Analysis Craven Decode Max Me Mv 1 Max Me Mv 2 Max Ae Av
Distance Coding
 
How do I use this stuff? <ul><li>WigWare   Plugins </li></ul>
Publications/Presentations (2007+) <ul><li>Presentations at conferences </li></ul><ul><ul><li>Wiggins, B., Spenceley, T. (...
Impact : Use in Industry <ul><li>Codesmasters </li></ul><ul><ul><li>Colin McCrea Rally : Dirt 2 thought to be the first ga...
Impact : Masters Validation Events <ul><li>Having active research in your area is essential for Masters and Post Graduate ...
Impact : Undergraduate Teaching <ul><li>‘Tweet’ from a 2 nd  year undergraduate, utilising my research (TIR Project) </li>...
Open Access Impact <ul><li>Evaluating Research Impact through Open Access to Scholarly Communication </li></ul><ul><ul><li...
Codemasters Quote <ul><li>&quot;Codemasters use the Wigware VST plug-ins, written at the University of Derby, to author su...
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10 Minute Research Presentation on Ambisonics and Impact

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In this 10 minute presentation I introduced my research into Ambisonic Surround Sound algorithm and software development and talked about its impact on the under graduate curriculum, post graduate validation events and its use in industry.

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Transcript of "10 Minute Research Presentation on Ambisonics and Impact"

  1. 1. Arts, Design and Technology Research Conference Dr Bruce Wiggins Signal Processing Applications Research Group University of Derby Future Proof Surround Sound Mixing using Ambisonics [email_address] http://www.derby.ac.uk/staff-search/dr-bruce-wiggins
  2. 2. Introduction <ul><li>Surround sound is now commonplace, with the standard presentation format being 5.1 </li></ul><ul><li>Most Digital Audio Workstations (DAWs) will mix for and create outputs for this system. </li></ul><ul><li>However, why would we want to be tied to a single speaker array. </li></ul><ul><li>It would be very useful to mix using a system that allowed: </li></ul><ul><ul><li>More speakers to be used for presenting the work to large groups of people </li></ul></ul><ul><ul><li>Less speakers to be used for single listener mixing (including headphones). </li></ul></ul>
  3. 3. Ambisonics <ul><li>Ambisonics has always been a system capable of single mix, multiple reproduction . </li></ul><ul><li>The audio is mixed to an intermediate format. </li></ul><ul><ul><li>This format is hierarchical and extendable, and so could be 2, 3, 4 or more channels depending on desired spatial acuity. </li></ul></ul><ul><li>This mix can then be rendered over any, practical, arrangement of loudspeakers or headphones exhibiting (with some caveats): </li></ul><ul><ul><li>Same relative volume per source </li></ul></ul><ul><ul><li>Same source positions </li></ul></ul><ul><ul><li>Same spatial impression </li></ul></ul>
  4. 4. My Research in Pictures! <ul><li>Applying heuristic search techniques to solve the irregular speaker problem. </li></ul>
  5. 5. My Research in Pictures! <ul><li>Applying heuristic search techniques to solve the irregular speaker problem. </li></ul>Turning this -> Into this ->
  6. 6. Using HRTF Data Analysis Craven Decode Max Me Mv 1 Max Me Mv 2 Max Ae Av
  7. 7. Distance Coding
  8. 9. How do I use this stuff? <ul><li>WigWare Plugins </li></ul>
  9. 10. Publications/Presentations (2007+) <ul><li>Presentations at conferences </li></ul><ul><ul><li>Wiggins, B., Spenceley, T. (2009) Distance coding and performance of the mark 5 and st350 SoundField microphones and their suitability for Ambisonic reproduction. Reproduced Sound 25 – Proceeding of the Institute of Acoustics, Vol 31, Pt 4. </li></ul></ul><ul><ul><li>Wiggins, B. (2009) Future Proof Surround Sound Mixing Using Ambisonics. Presentation given at the Forum for Innovation in Music Production and Composition, Leeds College of Music, UK </li></ul></ul><ul><ul><li>Wiggins, B (2009) “The Simulation of Distance in Multi-Channel Audio”, Presentation at University of Derby Research Conference, Derby, UK. </li></ul></ul><ul><ul><li>Wiggins, B. (2008) Has Ambisonics Come of Age? Reproduced Sound 24 - Proceedings of the Institute of Acoustics, Vol 30. Pt 6. </li></ul></ul><ul><ul><li>Wiggins, B. (2008) Ambisonics in Reaper – Spatial Sound & Music, EPSRC SpACE-NET International Workshop, University of Derby, UK </li></ul></ul><ul><ul><li>Wiggins, B. (2008) Screencasts for Education using BB Flashback and Adobe Captivate. Presentation given at Faculty of Arts, Design and Technology Teaching, Learning and Assessment conference, Derby, UK. </li></ul></ul><ul><ul><li>Wiggins, B. (2007) The Generation of Panning Laws for Irregular Speaker Arrays Using Heuristic Methods. Proceedings of the 31st International AES conference, London, UK. </li></ul></ul><ul><li>Published papers </li></ul><ul><ul><li>Wiggins, B., Spenceley, T. (2009)  Distance coding and performance of the mark 5 and st350 SoundField microphones and their suitability for Ambisonic reproduction.  Reproduced Sound 25 – Proceeding of the Institute of Acoustics, Vol 31, Pt 4. </li></ul></ul><ul><ul><li>Wiggins, B. (2008) Has Ambisonics Come of Age?  Reproduced Sound 24 - Proceedings of the Institute of Acoustics, Vol 30. Pt 6. </li></ul></ul><ul><ul><li>Wiggins, B. (2007) The Generation of Panning Laws for Irregular Speaker Arrays Using Heuristic Methods.  Proceedings of the 31st International AES conference, London, UK. </li></ul></ul>
  10. 11. Impact : Use in Industry <ul><li>Codesmasters </li></ul><ul><ul><li>Colin McCrea Rally : Dirt 2 thought to be the first game make use of pre-mixed audio content that reacts to player position in a meaningful, and realistic way. </li></ul></ul><ul><ul><ul><li>Saves space needed to store audio </li></ul></ul></ul><ul><ul><ul><li>Is more computationally efficient </li></ul></ul></ul><ul><li>Rockstar North </li></ul><ul><ul><li>Building my Tabu search based algorithm into their new games to adjust audio for different speaker layouts. </li></ul></ul><ul><ul><li>Making their audio engine flexible to arbitrary speaker placement. </li></ul></ul><ul><li>Funktion One </li></ul><ul><ul><li>Using my software at outdoor festivals </li></ul></ul><ul><ul><li>Voted the best sounding stage at Glade </li></ul></ul><ul><ul><li>Also the clearest stage on-site, but the quietest off-site </li></ul></ul>
  11. 12. Impact : Masters Validation Events <ul><li>Having active research in your area is essential for Masters and Post Graduate Provision: </li></ul><ul><li>Commendation from Recent MA Music Production Validation Event: </li></ul><ul><ul><li>We commend the Programme team for their energy and enthusiasm both generally and exemplified by </li></ul></ul><ul><ul><ul><li>The way the proposal emerges from the staff research and expertise which will inform the curriculum. </li></ul></ul></ul>
  12. 13. Impact : Undergraduate Teaching <ul><li>‘Tweet’ from a 2 nd year undergraduate, utilising my research (TIR Project) </li></ul>
  13. 14. Open Access Impact <ul><li>Evaluating Research Impact through Open Access to Scholarly Communication </li></ul><ul><ul><li>It shows that articles self-archived by authors receive between 50-250% more citations </li></ul></ul><ul><ul><li>that rapid pre-printing on the Web has dramatically reduced the peak citation rate from over a year to virtually instant. </li></ul></ul><ul><li>Implications for UoD Research Websites/staff pages ? </li></ul><ul><li>Brody, T. (2006) Evaluating Research Impact through Open Access to Scholarly Communication . PhD thesis, University of Southampton. </li></ul>
  14. 15. Codemasters Quote <ul><li>&quot;Codemasters use the Wigware VST plug-ins, written at the University of Derby, to author surround-sound ambiences for million-selling games like Colin McRae DiRT2. </li></ul><ul><li>They allow us to provide a convincing all-round soundfield which can be smoothly spun and tumbled around the player, whether listening on a quad, 5.1 or 7.1 speaker system, without loss of mono and stereo compatibility, played back through Codemasters' proprietary EGO TM runtime audio technology. </li></ul><ul><li>This Ambisonic technology develops research by Michael Gerzon at Oxford in the 1970s, in the context of the latest chart-topping video games; the result fits in half the disc space of a conventional pre-rendered 5.1 cinema mix, yet can be moved in 3D and is more tolerant of variations in room layout and makes good use of extra speakers such as the 7.1 HDMI outputs of PlayStation 3 and modern PCs.&quot; </li></ul>

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