Hendrik Purwins

Contact Education Experience Skills Publications Teaching Music & Acting Distinctions
Objective Research, development, or teaching in a university, a research center, or a company. Seeking for a work related to pattern recognition, statistical data analysis, neural networks, machine listening, information retrieval in audio databases, psychoacoustic (computational auditory scene analysis), auditory models, hearing aids, telecommunication, karaoke systems, sound for computer games, or audio codecs (MPEG).
Contact
Postal
address 		FR2-1, FB 13, Technical University Berlin, Franklinstr. 28/29, D-10587 Berlin, Germany
Phone ++49-(0)30/-314-25542 (office)
Fax ++49-(0)30-314-73121
E-mail [MY LAST NAME] AT ccrma DOT stanford DOT edu
Web http://www.cs.tu-berlin.de/~hendrik/
Birth
5/29/68 in Munich as the son of Hans-Georg Purwins, professor of physics, and Ingrid Purwins, pianist
 

Education

Ph.D.
9/5-18/99             selected for summer school seminar `Time Series Analysis' (A. Weigend & J. Timmer) in S. Giovanni
8/31-9/12/98 selected for summer school seminar `Representation and Consciousness' (W. Singer, A. Engel and T. Metzinger), S. Giovanni
8/95- PhD thesis 'Neural Information Processing Group' (superviser: Klaus Obermayer, Computer Science Department TU Berlin) research interests: cognitive geometric models of key relations, pitch perception, fast automated extraction of keys and tone centers from audio data with auditory models and Fourier techniques, statistical music analysis
University
10/1/95-3/31/02 Music theory and acting (A. Rattinger, Peter Stein) at the Academy of Arts Berlin (UdK)
1/12/95 Diploma in mathematics and computer science (minor) (all grades including diploma thesis `A'), thesis on `Several proofs of the complex-analytic Hilbert's Nullstellensatz' (algebra, complex variables, and functional analysis)
89-95 Mathematics, computer science, and musicology in Münster (focus: statistics, algebra, analysis)
10/88-3/89 Participation in seminar `computer music' (C. Barlow) at Music Academy Cologne
88-89 Mathematics and computer science at Bonn University
School
5/25/87                  Abitur (average grade A- ~ German 1.4)
84 Skipping a grade
75-87 Geneva, Zurich, Münster (northern Germany), Brookline (MA, guest)

Experience

9/1-11/30/02 Research fellow at NI (Klaus Obermayer)
2/1-3/31/01 Research fellow at NI (Klaus Obermayer)
9/1-10/31/00 Research fellow at NI (Klaus Obermayer)
8/31-9/30/99 Visiting Researcher at Psychology Department, McGill University (Al Bregman)
4/05-8/30/99 Visiting Scholar at CCRMA, Stanford University (J.O.Smith)
7/5/96 Organization of the international workshop `AI, Connectionism, Cognitive Science and Music'
2/15-4/15/96 Research fellow at NI (Klaus Obermayer)
8/15/95-3/31/99 Assisting Klaus Obermayer in building up an internationally renowned research center in computational neurobiology and ANN from scratch
10/1/90-3/31/91 Internship compiler construction
Army  
7/1/87-9/30/88   Violinist in the chamber orchestra and a string quartet of the headquarters music corps (Stabsmusikkorps) at Bonn (numberous concerts within Germany and abroad)

Skills

Software Unix (experienced), Linux (basic), Windows (b.), MacOS (b.), C (e.), Modula-2 (e.), Lisp (b.), Perl (b.), Matlab (advanced), Auditory Toolbox (e.), R (b.), Tcl/Tk (e.), gtk (b.), HTML (e.), MSWord (e.), Excel (e.), Latex (a.), Finale (b.), LUTEar (a.), Protools (e.), MAX/MSP (e.) , Common Lisp Music (b.), Common Music (b.), snd (b.), HumDrum (e.), Open Music (b.), CuBase (b.), xfig (a.), xv (e.), xpaint(e.), gnuplot (e.)
Languages German, English (fluently spoken and written), Latinum (final grade `B'), French (spoken)

Publications

Reviewed
Journal
Article 		H. Purwins, B. Blankertz, and K. Obermayer. Computing auditory perception. Organised Sound 5(3):159-171, 2000.
Invited
Book
Chapters 		Hendrik Purwins, Immanuel Normann, and Klaus Obermayer. Unendlichkeit - Konstruktion akustischer Paradoxien, In: Manfred Stahnke, eds. Ueber Toene, Ligeti zum Geburtstag. Accepted.
Hendrik Purwins, Thore Graepel, Benjamin Blankertz, and Klaus Obermayer. Correspondence analysis for visualizing interplay of pitch class, key, and composer. In Emilio Luis-Puebla, Guerino Mazzola, and Thomas Noll, editors, Perspectives in Mathematical Music Theory. Epos Verlag, Osnabrück, 2003. In print.
Proceedings Hendrik Purwins, Benjamin Blankertz, Guido Dornhege, Klaus Obermayer. Scale Degree Profiles from Audio Investigated with Machine Learning Techniques, Audio Engeneering Society 116th Convention, Berlin 2004.
H. Purwins, B. Blankertz, and K. Obermayer. Constant Q Profiles for Tracking Modulations in Audio Data International Computer Music Conference :407-10, Cuba, 2001.
I. Normann, H. Purwins, and K. Obermayer. Octave Ambiguous Tones. International Computer Music Conference:274-6, Cuba, 2001.
I. Normann, H. Purwins, and K. Obermayer. Interdependence of pitch and timbre perception for octave ambiguous tones. DAGA . Hamburg, 2001. CDROM.
H. Purwins, B. Blankertz, and K. Obermayer. A new method for tracking modulations in tonal music in audio data format. In International Joint Conference on Neural Network (IJCNN'00) 6:270-275. IEEE Computer Society, 2000.
Reviewed
Abstract 		B. Blankertz, H. Purwins, and K. Obermayer. Toroidal models of inter-key relations in tonal music. In VI. International Conference on Systematic and Comparative Musicology. Oslo, 1999.
Thesis H. Purwins. Mehrere Beweise des komplex-analytischen Hilbertschen Nullstellensatzes. Münster, 1995.
Other H.Purwins, B. Blankertz, and K. Obermayer. Modelle der Musikwahrnehmung zwischen auditorischer Neurophysiologie und Psychoakustik. In KlangForschung '99 . Saarbrücken: Pfau-Verlag, 2000. In print.
H. Purwins, B. Blankertz, and K. Obermayer. Automated Harmonic Music Analysis In International Neuroscience Summit. Berlin, 2002.
I. Normann, H. Purwins, and K. Obermayer. Interdependence of pitch and timbre perception for octave ambiguous tones. In DAGA. Hamburg, 2001. In print.
B. Blankertz, H. Purwins, and K. Obermayer. Constant Q profiles and toroidal models of inter-key relations (ToMIR). CCRMA Affiliates meeting. Stanford, 1999. CDROM.

Teaching & Talks

 
12/15/02 - Teaching colloquium computer music research
11/02 - Supervision of thesis in automatic counterpoint composition
8/26/00 Invited tutorial at ICMC on computing auditory perception
11/01 Lecturing replacing Klaus Obermayer
10/01/99-9/30/02 Teaching assistant for UNIX, C, GUI
10/1/99-11/1/00 Supervision of thesis work in psychophysics of pitch perception and automated extraction
3/1/99 - Talks in North America and Europe
10/1/96-
3/31/97 		Teaching a class on music and neural nets for engineering and music students at TU Berlin and HdK
4/1-9/30/96 Teaching a programming project on vowel recognition with artificial neural nets

Music Performance & Acting

 
1/1-8/16/00          Film 'Schwarzer Äther' (leading actor and co-producer) about Berlin and the poet G. Trakl
11/3-21/97 Music selection and electronic composition for Peter Stein's course on Strindberg at UdK
2/97-7/98 leading actor, director, composer, programmer in performance art ('Brain 'n chips'), a chamber opera (by I. Stravinsky), and a drama (by T. Bernhard) in AV Motiv and Künstlerbahnhof Westend
5/12-28/97 `Senza fine' at `Sender Freies Berlin' (SFB)
10/4/96 Co-composer of the electronic room acoustics work `senza fine', performed at the 10. Dresden Days of New Music
10/96 - 10/01 Organizing concert and drama series at the fraternity AV Motiv
90-92 Violinist in the jazz-rock band `Annie How'
1/84 2.Prize `Jugend musiziert' in the section `violin solo'
1/85 First performance of his own `Vocal Music ' and the `Violin Sonata' by D. Wilgenbus
82-94 Leading and minor parts, direction in plays by Borchert, Dürrenmatt,Doyle, Hacks, Osten/ Lysander, Priestley, Schwitters, Shakespeare, Weiss
86-89 Studying violin with Irmgard Fehrensen (Music Academy Detmold)
Age of 7 First violin lessons

Distinctions

8/96-10/99            Scholar of the `German National Merit Foundation' (Studienstiftung des deutschen Volkes)
Scholarship of 'Axel Springer Foundation'





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