Personal Orchestra

The goal of the Personal Orchestra series of projects is to adapt this centuries-old interaction metaphor to digital multimedia so that everyone may enjoy the wonderful experience of conducting world-famous orchestras.

Our primary research goals for this line of research are:
  • innovative interfaces for musical expression
  • gesture recognition (capturing the physical user movements)
  • gesture modelling and interpretation
  • real-time interactive audio and video time-stretching without pitch-shifting artifacts
  • time design and frameworks for time design of multimedia

News



Personal Orchestra 13: The Virtual Conductor '14 (2013-2014)

HOUSE OF MUSIC VIENNA, Austria



The 2014 version of this system was developed primarily with the following goals in mind:
  • exchanging the active infrared baton for a passive baton, which will be tracked using standard motion caption hardware, to reduce maintenance load on the active batons
  • developing reliable tracking and conducting motion classification algorithms
  • updating the software to be compatible with newer versions of the underlying operating system
  • updating video and audio rendering to use modern APIs and provide smoother playback
  • tighten the closed loop for the conducting speed tracking to allow better and more fine grained tempo control
  • allow a wider spatial range of conducting gestures without losing dynamic range

These changes make the most successful exhibit in the Vienna House of Music even more enjoyable for visitors and much less maintenance prone for the museum staff.

People:


Personal Orchestra 6: The Virtual Conductor Reloaded (2008-2009)

HOUSE OF MUSIC VIENNA, Austria

This system was designed for the HOUSE OF MUSIC VIENNA. It was opened to the public on Nov 27, 2009. It replaced our original PO1 exhibit installed there in 2000, which had been used by 1.5 million visitors since, making it the most successful station in the house, and a top tourist attraction.

Using an infrared baton, visitors can conduct the Vienna Philharmonic by controlling speed, volume, and the emphasis of different instrument sections. The new system features
  • the MICON electronic music stand that shows the score, highlighting the current position and emphasized instrument section, and turning pages in a 3D animation,
  • six new recordings of the orchestra in full HD video,
  • greatly improved conducting fidelity, giving visitors the tightest control over the orchestra of all our systems, including the ability to stop conducting for a fermata,
  • our PhaVoRIT continuous real-time high-quality audio stretching,
  • up to six different instrument sections that can be emphasized by conducting towards them,
  • helpful hint video scenes by maestro Zubin Mehta explaining how best to conduct each piece.

One of the major new research and development challenges in this version was to create a video pipeline architecture that can display full HD video at rapidly varying speeds from 0 to 200% without any stuttering or other artifacts. The system is based on the advanced video rendering subsystem inside Mac OS X.


(Foto: (c) Anna Rauchenberger / fotodienst.at)


More images from the launch are available at fotodienst.at.

People:

And from TU Darmstadt:


Personal Orchestra 3: Maestro! (2003-2006 )

The Betty Brinn Children's Museum in Milwaukee, USA

This system was developed for a children's museum. The main new feature developed for this project was an adaptive gesture recognition to accommodate both regular conducting gestures by adults and irregular conducting movements by young children.


'Maestro!'' at the Betty Brinn Children's Museum in Milwaukee, USA

More information is available at the PO3 home page.


People:



Personal Orchestra 2: You're the Conductor (2002-2003)

The Children's Museum in Boston, USA


You're the Conductor was our second generation conducting system designed specifically for kids (but it works great for adults too!). It features "Stars and Stripes Forever" performed by the Boston Pops/Boston Symphony Orchestra.

You're the Conductor offers an improved technical framework over You're the Conductor, especially in the area of time-stretching audio. Audio is processed in real-time using an improved phase vocoder algorithm, resulting in increased responsiveness, audio quality and tempo range over the Virtual Conductor. Movies are stored as standard QuickTime movies with uncompressed PCM audio.

The key research contributions were:
  • first conducting system specifically designed for children, featuring an audio and video recording for an orchestra.
  • design and implementation of a technical framework for real-time interactive audio time stretching without pitch shifting artifacts.


More information is available at http://www.actibits.com.


People:



Personal Orchestra 1: The Virtual Conductor (1998-2000)

The House of Music in Vienna, Austria


The Virtual Conductor was the world's first system that allowed users to conduct an actual audio and video recording of an orchestra. It has become a highlight of the HOUSE OF MUSIC VIENNA where it has been a permanent exhibit and museum highlight ever since the museum's opening in June 2000. It features exclusive performances from the world-famous Vienna Philharmonic Orchestra.

Users conduct the Vienna Philharmonic using a Buchla Lightning II infrared baton that sends MIDI data to a host computer performing the gesture recognition. Gestures are interpreted as simple up-down motions and translated to speed, volume and instrument emphasis which are then sent to a second computer responsible for processing the audio and video for display. Movies are stored as a multi-track QuickTime movie including a series of pre-processed, pitch-shifted tracks. By switching between these different audio tracks and varying the playback speed, the audio is time-stretched without any pitch-shifting artifacts.

The key research contribution was:
  • first system to let a human conduct an actual audio and video recording.


More information is available at http://www.actibits.com.


People:



Related Publications:

2014

Hesham Omran. Opposable thumbs: A bare-hands text input technique. Master's thesis, Aachen, August 2014. PDF Document BibTeX Entry.

2012

Florian Heller and Jan Borchers. Physical prototyping of an on-outlet power-consumption display. interactions, 19:14-17, Jan 2012. Homepage BibTeX Entry.

2011

Simon Voelker, Malte Weiss, Chat Wacharamanotham, and Jan Borchers. Dynamic Portals: A Lightweight Metaphor for Fast Object Transfer on Interactive Surfaces. In Proceedings of ITS '11, pages 158-161, New York, NY, USA, 2011. ACM Press. PDF Document BibTeX Entry.
Florian Heller and Jan Borchers. PowerSocket: Towards On-Outlet Power Consumption Visualization. In Extended Abstracts of the CHI 2011 Conference on Human Factors in Computing Systems, CHI EA '11, pages 1981-1986, New York, NY, USA, 2011. ACM. Homepage PDF Document BibTeX Entry.
Wolfgang Kluth. PowerSocket - Implementation and Evaluation of an On-Socket Power Consumption Display. Bachelor thesis, RWTH Aachen University, April 2011. PDF Document BibTeX Entry.

2006

Jan Borchers, Aristotelis Hadjakos, and Max Mühlhäuser. MICON: A Music Stand for Interactive Conducting. In NIME 2006 International Conference on New Interfaces for Musical Expression, pages 254-259, Paris, France, June 2006. PDF Document BibTeX Entry.
Eric Lee, Ingo Grüll, Henning Kiel, and Jan Borchers. conga: A Framework for Adaptive Conducting Gesture Analysis. In NIME 2006 International Conference on New Interfaces for Musical Expression, pages 260-265, Paris, France, June 2006. PDF Document BibTeX Entry.
Eric Lee, Henning Kiel, Saskia Dedenbach, Ingo Gruell, Thorsten Karrer, Marius Wolf, and Jan Borchers. iSymphony: An Adaptive Interactive Orchestral Conducting System for Conducting Digital Audio and Video Streams. In Extended Abstracts of CHI 2006 Conference on Human Factors in Computing Systems, pages 259 - 262, Montréal, Canada, April 2006. ACM Press. PDF Document Movie BibTeX Entry.
Eric Lee, Thorsten Karrer, and Jan Borchers. Toward a Framework for Interactive Systems to Conduct Digital Audio and Video Streams. Computer Music Journal, 30(1):21-36, Spring 2006. The video for this article appears in the Computer Music Journal Sound and Video Anthology 29(4), 2005, Homepage PDF Document Movie BibTeX Entry.

2005

Eric Lee and Jan Borchers. The Role of Time in Engineering Computer Music Systems. In NIME 2005 International Conference on New Interfaces for Musical Expression, pages 204-207, Vancouver, Canada, May 2005. NIME. PDF Document BibTeX Entry.
Eric Lee, Marius Wolf, and Jan Borchers. Improving orchestral conducting systems in public spaces: examining the temporal characteristics and conceptual models of conducting gestures. In Proceedings of the CHI 2005 conference on Human factors in computing systems, pages 731-740, Portland, Oregon, April 2005. ACM, ACM Press. PDF Document Movie BibTeX Entry.

2004

Eric Lee, Teresa Marrin Nakra, and Jan Borchers. You're the Conductor: A Realistic Interactive Conducting System for Children. In NIME 2004 International Conference on New Interfaces for Musical Expression, pages 68-73, Hamamatsu, Japan, June 2004. NIME. PDF Document BibTeX Entry.
Jan Borchers, Eric Lee, Wolfgang Samminger, and Max Mühlhäuser. Personal Orchestra: A real-time audio/video system for interactive conducting. ACM Multimedia Systems Journal Special Issue on Multimedia Software Engineering, 9(5):458-465, March 2004. BibTeX Entry.

2002

Jan O. Borchers, Wolfgang Samminger, and Max Mühlhäuser. Engineering a realistic real-time conducting system for the audio/video rendering of a real orchestra. In IEEE MSE 2002 Fourth International Symposium on Multimedia Software Engineering, December 2002. PDF Document BibTeX Entry.
Jan O. Borchers, Wolfgang Samminger, and Max Mühlhäuser. Personal Orchestra: Conducting Audio/Video Music Recordings. In WEDELMUSIC 2002 International Conference On Web Delivering of Music, December 2002. Movie BibTeX Entry.

2001

Jan O. Borchers, Wolfgang Samminger, and Max Mühlhäuser. Conducting A Realistic Electronic Orchestra. In 14th Annual Symposium on User Interface Software and Technology, pages 161-162, Orlando, Florida, November 2001. ACM. Homepage BibTeX Entry.




Hardware checklist for PO demonstrations (internal access)

Personal Orchestra Documentation)

Created by jon. Last Modification: Monday 06 of October, 2014 12:46:54 by karrer.

Media Computing Group at RWTH Aachen

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