Von: ak, sekretariat via ak discourse
Datum: Thu, 5 Feb 2026
Betreff: [ak-discourse] Einladung zum Forschungskolloquium am 10.02.2026
Liebe Freunde der Audiokommunikation,
am kommenden Dienstag, den 10.02.2026, um 18:00 Uhr im Raum EN 324 präsentiert Nikolaj Wolff seine Masterarbeit zum Thema
„De-amping: removing amplifier and distortion effects from guitar recordings“
Dazu möchten wir Sie herzlich einladen. Eine Kurzzusammenfassung finden Sie am Ende dieser E-Mail.
Der Zoom-Link für unsere auswärtigen Gäste lautet:
tu-berlin.zoom.us/j/65356423211<https://tu-berlin.zoom.us/j/65356423211?pwd=33q4fHr0fhhV2WCxYDNL2LM4S2hVe2.1>
Meeting-ID: 653 5642 3211
Kenncode: 141962
Mit herzlichen Grüßen
Kirill Andreev & Stefan Weinzierl
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Nikolaj Wolff: De-amping: removing amplifier and distortion effects from guitar recordings
De-amping—the process of recovering the direct input signal from a distorted electric guitar recording—is a challenging task with applications in music production, sound restoration, and music information retrieval. While only a handful of recent studies have directly addressed de-amping, the current state of the art employs two-stage neural architectures that first denoise spectrograms and then reconstruct the waveform using a neural vocoder. This study investigates whether deep neural networks (DNNs) can reverse the linear and nonlinear transformations introduced by guitar amplifiers and effects. Several DNN architectures are evaluated using signal-based metrics and a perceptual listening test. The best results are achieved by a two-stage system combining the BigV-GAN v2 neural vocoder with the Cascaded Gaze spectrogram denoiser, which demonstrates strong robustness, especially in zero-shot scenarios on unseen data. The relationship between listening test results and signal-based metrics is examined to assess how accurately these measures represent subjective audio quality.
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Kirill Andreev
Er/ihm – he/him
Anrede/Form of address: Herr – Mr.
Sekretariat
Office
Technische Universität Berlin
Fakultät I / Inst. f. Sprache u. Kommunikation
FG Audiokommunikation / Sekr. EN-8
Faculty I / Institute for Language & Communication
Audio Communication Group / Office No. EN-8
Einsteinufer 17, 10587 Berlin
GERMANY
sekretariat@ak.tu-berlin.de
+49 (0)30 314-22236
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