19th International Conference
on Digital Audio Effects
September 5–9, 2016
Brno, Czech Republic



Proceedings of the 19th International Conference on Digital Audio Effects

DAFx16 Proceedings Cover
ISSN 2413-6700 (Print)
ISSN 2413-6689 (Online)
The complete proceedings in a single pdf (42.2 MB)


Oral Session 1: Time-Frequency Representation of Audio Signals
Oral Session 2: Virtual Analog
Poster Session 1
Oral Session 3: Signal Processing
Oral Session 4: Sound Synthesis 1
Oral Session 5: Sound Synthesis 2
Poster Session 2
Oral Session 6: Audio and Music Analysis
Oral Session 7: Wave Digital Filters
Oral Session 8: Spatial Audio
Oral Session 1: Time-Frequency Representation of Audio Signals
Real-Time Audio Visualization With Reassigned Non-uniform Filter Banks
Zdeněk Průša and Nicki Holighaus
Estimates of the Reconstruction Error in Partially Redressed Warped Frames Expansions
Thomas Mejstrik and Gianpaolo Evangelista
Real-Time Spectrogram Inversion Using Phase Gradient Heap Integration
Zdeněk Průša and Peter L. Søndergaard
Modifying Signals in Transform Domain: a Frame-Based Inverse Problem
Roswitha Bammer and Monika Dörfler
Oral Session 2: Virtual Analog
Time-Variant Gray-Box Modeling of a Phaser Pedal
Roope Kiiski, Fabián Esqueda and Vesa Välimäki
Black-box Modeling of Distortion Circuits with Block-Oriented Models
Felix Eichas and Udo Zölzer
Physical Model Parameter Optimisation for Calibrated Emulation of the Dallas Rangemaster Treble Booster Guitar Pedal
Ben Holmes and Maarten van Walstijn
Circuit Simulation with Inductors and Transformers Based on the Jiles-Atherton Model of Magnetization
Martin Holters and Udo Zölzer
Poster Session 1
A Cosine-Distance Based Neural Network for Music Artist Recognition Using Raw I-Vector Feature
Hamid Eghbal-Zadeh, Matthias Dorfer and Gerhard Widmer
Hubness-Aware Outlier Detection for Music Genre Recognition
Arthur Flexer
Separating Piano Recordings into Note Events Using a Parametric Imitation Approach
Xue Wen
Assessing The Suitability of the Magnitude Slope Deviation Detection Criterion For Use In Automatic Acoustic Feedback Control
Marc C. Green, John Szymanski and Matt Speed
A Robust Stochastic Approximation Method for Crosstalk Cancellation
Huaxing Xu, Risheng Xia, Junfeng Li and Yonghong Yan
Simulation of Analog Flanger Effect Using BBD Circuit
Jaromír Mačák
Audio Nonlinear Modeling through Hyperbolic Tangent Functionals
Adalberto Schuck Jr. and Bardo Ernst Josef Bodmann
Oral Session 3: Signal Processing
Signal-Matched Power-Complementary Cross-Fading and Dry-Wet Mixing
Marco Fink, Martin Holters and Udo Zölzer
Rounding Corners with BLAMP
Fabián Esqueda, Vesa Välimäki and Stefan Bilbao
Time-Domain Implementation of a Stereo to Surround Sound Upmix Algorithm
Sebastian Kraft and Udo Zölzer
Oral Session 4: Sound Synthesis 1
Synthesis of Sound Textures with Tonal Components Using Summary Statistics and All-Pole Residual Modeling
Hyung-Suk Kim and Julius O. Smith
Reducing the Aliasing of Nonlinear Waveshaping Using Continuous-Time Convolution
Julian D. Parker, Vadim Zavalishin and Efflam Le Bivic
Sound Morphing by Audio Descriptors and Parameter Interpolation
Savvas Kazazis, Philippe Depalle and Stephen McAdams
Real-Time Force-Based Sound Synthesis Using GPU Parallel Computing
Ryoho Kobayashi
Oral Session 5: Sound Synthesis 2
A Physical String Model with Adjustable Boundary Conditions
Maximilian Schäfer, Petr Frenštátský and Rudolf Rabenstein
A Modal Approach to the Numerical Simulation of a String Vibrating Against an Obstacle: Applications to Sound Synthesis
Clara Issanchou, Jean-Loic Le Carrou, Stefan Bilbao, Cyril Touzé and Olivier Doaré
A Real-Time Synthesis Oriented Tanpura Model
Maarten van Walstijn, Jamie Bridges and Sandor Mehes
Assessing Applause Density Perception Using Synthesized Layered Applause Signals
Alexander Adami, Sascha Disch, Garri Steba and Jürgen Herre
Poster Session 2
Time Domain Aspects of Artifact Reduction in Positioning Algorithm using Differential Head-Related Transfer Function
Dominik Storek
Detection of Clicks in Analog Records Using Peripheral-Ear Model
František Rund, Václav Vencovský and Jaroslav Bouše
Perceptual Audio Source Culling for Virtual Environments
Ali Can Metan and Hüseyin Hacihabiboğlu
Automatic Violin Synthesis Using Expressive Musical Term Features
Chih-Hong Yang, Pei-Ching Li, Alvin W. Y. Su, Li Su and Yi-Hsuan Yang
Concatenative Sound Texture Synthesis Methods and Evaluation
Diemo Schwarz, Axel Roebel, Chunghsin Yeh and Amaury La Burthe
Signal Decorrelation using Perceptually Informed Allpass Filters
Elliot Kermit-Canfield and Jonathan Abel
Complexity Scaling of Audio Algorithms: Parametrizing the MPEG Advanced Audio Coding Rate-Distortion Loop
Pablo Delgado and Markus Lohwasser
Oral Session 6: Audio and Music Analysis
Non-Linear Identification of an Electric Guitar Pickup
Antonin Novak, Leo Guadagnin, Bertrand Lihoreau, Pierrick Lotton, Emmanuel Brasseur and Laurent Simon
Monophonic Pitch Detection by Evaluation of Individually Parameterized Phase Locked Loops
Johannes Böhler and Udo Zölzer
Piecewise Derivative Estimation of Time-Varying Sinusoids as Spline Exponential Functions
Xue Wen
Oral Session 7: Wave Digital Filters
The Fender Bassman 5F6-A Family of Preamplifier Circuits—A Wave Digital Filter Case Study
W. Ross Dunkel, Maximilian Rest, Kurt James Werner, Michael Jørgen Olsen and Julius O. Smith
A Computational Model of the Hammond Organ Vibrato/Chorus using Wave Digital Filters
Kurt James Werner, W. Ross Dunkel and François Germain
Resolving Grouped Nonlinearities in Wave Digital Filters using Iterative Techniques (updated version)
Michael Jørgen Olsen, Kurt James Werner and Julius O. Smith
RT-WDF — A Modular Wave Digital Filter Library with Support for Arbitrary Topologies and Multiple Nonlinearities
Maximilian Rest, W. Ross Dunkel, Kurt James Werner and Julius O. Smith
Oral Session 8: Spatial Audio
Directivity Patterns Controlling the Auditory Source Distance
Florian Wendt, Matthias Frank, Franz Zotter and Robert Höldrich
Auditory Perception of Spatial Extent in the Horizontal and Vertical Plane
Marian Weger, Georgios Marentakis and Robert Höldrich
Model-Based Obstacle Sonification for the Navigation of Visually Impaired Persons
Simone Spagnol, Omar I. Johannesson, Arni Kristjansson, Runar Unnthorsson, Charalampos Saitis, Kyriaki Kalimeri, Michal Bujacz and Alin Moldoveanu

Keynote 1: Peter Balazs - Frames in Audio Processing: What You Use, but Might Not Know

Given a certain number of sampling points, can it be useful to represent them with a larger collection of points/values? If not, why are spectrograms usually using overlapping windows? Given a particular analysis filter bank, when and how can a synthesis procedure be found that enables perfect reconstruction? What are the conditions for that? Is a quadrature-mirror condition the only way? How can a time-varying filter be implemented by directly manipulating the time-frequency coefficients? What properties do such time-frequency filters have? All those (and similar) questions will be answered by using the theory of frames and its application to audio signal processing.

Note: use DAFx16 Wireless Guest Access password to open the presentation.

Keynote 2: Michael Hlatky - Design at Native Instruments

Since Native Instruments introduced Generator, the first modular synthesizer for a desktop computer environment more 20 years ago, the company has released a large variety of hardware and software to perform and produce music. This talk will give an insight into how we - the people working at NI - design the hardware, develop the software, decide upon features and what lessons we learned.

Keynote 3: Sakari Tervo - Parametric Spatial Room Impulse Response Analysis and Synthesis: A High-Resolution Approach

The analysis of room acoustics is of great interest in subjective and objective studies of acoustic spaces. Often, the goal in room acoustic studies is to explain the subjective experience of sound, for example, speech clarity or bassiness, with the objective measurements of the sound field. In order to describe a sound field spatially, a microphone array impulse response measurement is required. This keynote lecture presents an approach to the analysis and synthesis of the sound field measured with a microphone array via parametric models. Estimation methods of the parameters in the model, and the detection of which model fits the data the best are described. Pros and cons of the parametric approach are discussed and examples with some commercially available microphone arrays are described.


Tutorial 1: Václav Peloušek & Lennart Schierling - Instrument Design Upside Down with Bastl Instruments

Emulating inherently digital artefacts with analog technology? Sounds created by running sound processing on processors virtually unable to render them? This Bastl [local term for hack] mindset as a design approach for musical instruments and tools has been the key for Bastl Instruments main developer Václav Peloušek to creating a range of desktop hardware instruments and eurorack modules. Analog and digital circuits running at the edge of collapse to work in harmony as part of digital-analog-mechanical hybrid systems. Lennart Schierling is the main developer of Thyme - robot operated digital tape machine - very universal sequencable hardware DSP processing unit to be released soon by Bastl.

Tutorial 2: Jaromír Mačák - Analog Effects Modeling - New Ways to Get Old Sounds

The term virtual analog effects has been known in digital audio effects community for several years. But until recently, this type of audio effects have been accepted by a wider range of musicians and end users as adequate equivalent to classic analog audio effects. This is due to a significant improvement of the methods and algorithms for real-time digital simulation of analog circuits. This tutorial will give an overview of basic techniques used in virtual analog modeling based either on deep analysis of the circuit schematic or measurement of analog audio effect. Pros and cons of both approaches will be mentioned as well as real examples using these techniques with attention for real-time implementation of these algorithms.

Tutorial 3: Jukka Pätynen & Sakari Tervo - Detailed Analysis of Room Acoustics by Spatiotemporal Methods

The analysis of sound fields in rooms has been under interest for a long time. Many traditional methods aim to describe the room-acoustic effect in terms of single number values. However, numeric parameters often fail in communicating the multi-dimensional effects. The introduction of compact microphone arrays have enabled an increasingly detailed analysis of the sound field. This tutorial will present the latest advances in investigating the spatial, spectral, and temporal structure of the acoustics of enclosures with visual techniques. These methods are demonstrated with a recently published, freely available analysis toolbox.


Our generous sponsors:

AVT Group iZotope Steinberg
Ableton Native Instruments Soundtoys