Dipl.-Ing. Sebastian Kraft

Room:
2417
Phone:
+49-40-6541-2659
Visitor address
Helmut-Schmidt-Universität
Gebäude H1
Holstenhofweg 85
22043 Hamburg
Postal address
Helmut-Schmidt-Universität
Fakultät für Elektrotechnik
Allgemeine Nachrichtentechnik
Postfach 70 08 22
22008 Hamburg

 

Research

Symbolbild Transkription

  • Pitch detection in monophonic and polyphonic music
  • Key detection, onset detection, chord classification

Upmix Blockdiagramm

HTML5/Javascript Framework for (MUSHRA) listening tests (GitHub)

BeaqleJS Screenshot

Publications

S. Kraft, U. Zölzer: „LP-BLIT: Bandlimited Impulse Train Synthesis of Lowpass-filtered Waveforms“, 20th International Conference on Digital Audio Effects, 2017, Edinburgh.

S. Kraft, U. Zölzer: “Automatic upmixing from 2-channel stereo to surround and 3D audio”, 29th Tonmeistertagung (TMT29), 2016, Cologne, Germany

S. Kraft, U. Zölzer: “Time-domain implementation of a stereo to surround sound upmix algorithm”, 19th International Conference on Digital Audio Effects, 2016, Brno, Czech Republic.

S. Kraft, U. Zölzer: “Low-complexity stereo signal decomposition and source separation for application in stereo to 3D upmixing”, 140th AES Convention, 2016, Paris, France.

S. Kraft, U. Zölzer: “Stereo signal separation and upmixing by mid-side decomposition in the frequency-domain “, 18th International Conference on Digital Audio Effects, 2015, Trondheim, Norway.

M. Fink, S. Kraft, U. Zölzer: “Downmix-compatibe conversion from mono to stereo in time- and frequency-domain “, 18th International Conference on Digital Audio Effects, 2015, Trondheim, Norway.

S. Kraft, U. Zölzer: “Polyphonic Pitch Detection by Matching Spectral and Autocorrelation Peaks”, 23rd European Signal Processing Conference (EUSIPCO),  2015, Nizza, France.

S. Kraft, M. Fink, und U. Zölzer: “Low-cost and downmix-comopatible mono-to-stereo upmnix”, Poster at 28th Tonmeistertagung (TMT28), Cologne, Germany, November 20-23, 2014

S. Kraft, U. Zölzer: “Polyphonic Pitch Detection by Iterative Analysis of the Autocorrelation Function “, 17th International Conference on Digital Audio Effects,  1.-5. September 2014, Erlangen.

S. Kraft, U. Zölzer: “BeaqleJS: HTML5 and JavaScript based Framework for the Subjective Evaluation of Audio Quality “, Linux Audio Conference, 1.-4. Mai 2014, Karlsruhe.

M. Fink, S. Kraft, M. Holters, U. Zölzer: “Load-balanced implementation of a delayless partitioned block frequency-domain adaptive filter “, 2. Workshop Audiosignal- und Sprachverarbeitung, 43. Jahrestagung der Gesellschaft für Informatik,  19. September 2013, Koblenz.

S. Kraft, A. Lerch, U. Zölzer: “The tonalness spectrum: feature-based estimation of tonal components “, 16th International Conference on Digital Audio Effects,  2.-5. September 2013, Maynooth, Ireland.

S. Kraft, M. Holters, A. von dem Knesebeck, U. Zölzer: “Improved PVSOLA time stretching and pitch shifting for polpyhonic audio “, 15th International Conference on Digital Audio Effects,  17.-21. September 2012, York. (Demo)

A. von dem Knesebeck, S. Kraft, U. Zölzer: “Realtime system for backing vocal harmonization ” 14th International Conference on Digital Audio Effects, 19.-23. September 2011, Paris.

A. von dem Knesebeck, S. Kraft, U. Zölzer: “A system for synthesis of backing vocals by intelligent harmonization.” 17th International Conference on Digital Signal Processing (DSP), 06.-08. July 2011, Corfu.

Teaching

Digital Communication Systems, exercise

Digitale Signalverarbeitung, laboratory exercise

Digitale Filter / Multimediasignalverarbeitung, laboratory exercise

Digitale Audiosignalverarbeitung, exercise

Supervised student work

J. E. Manitz: “VST-Plugin für räumliche Wiedergabe über Kopfhörer”, Masterarbeit, 2017

J.-T. Reimers: “Implementation of a time domain upmixing algorithm”, Projektarbeit, 2017

C. Bothner: “Extraction of Ambience from Stereo Signals with an NLMS Algorithm”, Masterarbeit, 2015

J. Cuesta: “Post-Processing of polyphonic pitch tracks”, Masterarbeit, 2015

C. Rädel: “Signal-Adaptive Time-Frequency Transforms”, Masterarbeit, 2015

C. Bothner: “Adaptive Störgeräuschunterdrückung mit Hilfe des Least Mean Square Verfahrens”, Studienarbeit, 2015

M. Stühmer: “Störgeräuschunterdrückung und Center-Extraktion in Mehrkanal-Audiodaten”, Masterarbeit, 2014

M. Stühmer: “Interaktive Quellenseparation in Stereodateien”, Studienarbeit, 2014

B. J. Leimert: “Entwicklung einer Methode zur Tonarterkennung unter Berücksichtigung der Stimmfrequenz”, Masterarbeit, 2013

C. de Obaldia: “Vowel recognition, mapping and reconstruction for short time speech synthesis”, Masterarbeit, 2013

B. J. Leimert: “Optimierung einer Pitch-Detektion durch Anwendung verschiedener Verfahren im Postprocessing”, Studienarbeit, 2013

S. Resenski: “Konzeptionierung und Implementierung eines Tempo-Tracking Algorithmus zur temporalen Beschreibung von Musik”, Studienarbeit, 2013

G. Calvo Hernández: “Frequency Domain Pitch Detection Algorithm based on the Harmonic Product Spectrum”, Masterarbeit, 2012

HSU

Letzte Änderung: 22. October 2019