Digitizing the Ibanez Weeping Demon Wah Pedal

Chet Gnegy; Kurt James Werner

Digitizing the Ibanez Weeping Demon Wah Pedal

Chet Gnegy, Kurt James Werner

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

503 Downloads (Pure)

Abstract

Being able to transform an analog audio circuit into a digital model is a big deal for musicians, producers, and circuit benders alike. In this paper, we address some of the issues that arise when attempting to make such a digital model. Using the canonical state variable filter as the main point of interest in our schematic, we will walk through the process of making a signal flow graph, obtaining a transfer function, and making a usable digital filter. Additionally, we will address an issue that is common throughout virtual analog literature; reducing the very large expressions for each of the filter coefficients. Using a novel factoring algorithm, we show that these expressions can be reduced from thousands of operations down to tens of operations.

Original language	English
Title of host publication	Proceedings of the 18th International Conference on Digital Audio Effects (DAFx-15)
Editors	Peter Svensson, Ulf Kristiansen
Place of Publication	Trondheim, Norway
Pages	257—264
Number of pages	8
Publication status	Published - 30 Nov 2015
Externally published	Yes
Event	18th International Conference on Digital Audio Effects (DAFx-15) - Norwegian University of Science and Technology, Trondheim, Norway Duration: 30 Nov 2015 → 03 Dec 2015

Publication series

Name	DAFx Proceedings
Publisher	DAFx
ISSN (Print)	2413-6700
ISSN (Electronic)	2413-6689

Conference

Conference	18th International Conference on Digital Audio Effects (DAFx-15)
Country/Territory	Norway
City	Trondheim
Period	30/11/2015 → 03/12/2015

Bibliographical note

Runner up for best paper

Access to Document

Digitizing the Ibanez Weeping Demon Wah Pedal
© 2015 The Authors. Published in the Proceedings of the 18th International Conference on Digital Audio Effects (DAFx-15). This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
Final published version, 671 KBLicence: Unspecified

http://www.ntnu.edu/documents/1001201110/1266017954/DAFx-15_submission_73.pdf

18th International Conference on Digital Audio Effects (DAFx-15)
Werner, K. (Participant)
30 Nov 2015 → 03 Dec 2015
Activity: Participating in or organising an event types › Participation in conference

DAFx Best Paper Honorable Mention
Gnegy, C. (Recipient) & Werner, K. (Recipient), 30 Nov 2015
Prize: Prize (including medals and awards)

Cite this

@inproceedings{091484074adc4ff3a89a4739d9f383f7,

title = "Digitizing the Ibanez Weeping Demon Wah Pedal",

abstract = "Being able to transform an analog audio circuit into a digital model is a big deal for musicians, producers, and circuit benders alike. In this paper, we address some of the issues that arise when attempting to make such a digital model. Using the canonical state variable filter as the main point of interest in our schematic, we will walk through the process of making a signal flow graph, obtaining a transfer function, and making a usable digital filter. Additionally, we will address an issue that is common throughout virtual analog literature; reducing the very large expressions for each of the filter coefficients. Using a novel factoring algorithm, we show that these expressions can be reduced from thousands of operations down to tens of operations.",

author = "Chet Gnegy and Werner, {Kurt James}",

note = "Runner up for best paper; 18th International Conference on Digital Audio Effects (DAFx-15) ; Conference date: 30-11-2015 Through 03-12-2015",

year = "2015",

month = nov,

day = "30",

language = "English",

series = "DAFx Proceedings",

publisher = "DAFx",

pages = "257—264",

editor = "Peter Svensson and Ulf Kristiansen",

booktitle = "Proceedings of the 18th International Conference on Digital Audio Effects (DAFx-15)",

}

Gnegy, C & Werner, KJ 2015, Digitizing the Ibanez Weeping Demon Wah Pedal. in P Svensson & U Kristiansen (eds), Proceedings of the 18th International Conference on Digital Audio Effects (DAFx-15)., 73, DAFx Proceedings, Trondheim, Norway, pp. 257—264, 18th International Conference on Digital Audio Effects (DAFx-15), Trondheim, Norway, 30/11/2015. <http://www.ntnu.edu/documents/1001201110/1266017954/DAFx-15_submission_73.pdf>

TY - GEN

T1 - Digitizing the Ibanez Weeping Demon Wah Pedal

AU - Gnegy, Chet

AU - Werner, Kurt James

N1 - Runner up for best paper

PY - 2015/11/30

Y1 - 2015/11/30

N2 - Being able to transform an analog audio circuit into a digital model is a big deal for musicians, producers, and circuit benders alike. In this paper, we address some of the issues that arise when attempting to make such a digital model. Using the canonical state variable filter as the main point of interest in our schematic, we will walk through the process of making a signal flow graph, obtaining a transfer function, and making a usable digital filter. Additionally, we will address an issue that is common throughout virtual analog literature; reducing the very large expressions for each of the filter coefficients. Using a novel factoring algorithm, we show that these expressions can be reduced from thousands of operations down to tens of operations.

AB - Being able to transform an analog audio circuit into a digital model is a big deal for musicians, producers, and circuit benders alike. In this paper, we address some of the issues that arise when attempting to make such a digital model. Using the canonical state variable filter as the main point of interest in our schematic, we will walk through the process of making a signal flow graph, obtaining a transfer function, and making a usable digital filter. Additionally, we will address an issue that is common throughout virtual analog literature; reducing the very large expressions for each of the filter coefficients. Using a novel factoring algorithm, we show that these expressions can be reduced from thousands of operations down to tens of operations.

M3 - Conference contribution

T3 - DAFx Proceedings

SP - 257—264

BT - Proceedings of the 18th International Conference on Digital Audio Effects (DAFx-15)

A2 - Svensson, Peter

A2 - Kristiansen, Ulf

CY - Trondheim, Norway

T2 - 18th International Conference on Digital Audio Effects (DAFx-15)

Y2 - 30 November 2015 through 3 December 2015

ER -

Digitizing the Ibanez Weeping Demon Wah Pedal

Abstract

Publication series

Conference

Bibliographical note

Access to Document

Fingerprint

Activities

18th International Conference on Digital Audio Effects (DAFx-15)

Prizes

DAFx Best Paper Honorable Mention

Cite this