Publication detail

Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations

MAČÁK, J. SCHIMMEL, J.

Original Title

Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations

English Title

Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations

Type

journal article - other

Language

en

Original Abstract

The designing of algorithms for real-time digital simulation of analog effects and amplifiers brings two contradictory requirements: accuracy versus computational efficiency. In this paper, the simulation of a typical guitar tube preamp using an approximation of the solution of differential equations is discussed with regard to accuracy and computational complexity. The solution of circuit equations is precomputed and stored in N-D tables. The stored values are approximated, and therefore different approximation techniques are investigated as well. The approximated functions are used for output signal computation and also for circuit state update. The designed algorithm is compared to the numerical solution of the given preamp and also to the real preamp.

English abstract

The designing of algorithms for real-time digital simulation of analog effects and amplifiers brings two contradictory requirements: accuracy versus computational efficiency. In this paper, the simulation of a typical guitar tube preamp using an approximation of the solution of differential equations is discussed with regard to accuracy and computational complexity. The solution of circuit equations is precomputed and stored in N-D tables. The stored values are approximated, and therefore different approximation techniques are investigated as well. The approximated functions are used for output signal computation and also for circuit state update. The designed algorithm is compared to the numerical solution of the given preamp and also to the real preamp.

Keywords

aproximation, guitar amplifier, nonlinear, simulation, real-time digital signal processing

RIV year

2011

Released

07.04.2011

Publisher

Springer Nature

ISBN

1687-6172

Periodical

EURASIP Journal on Advances in Signal Processing

Year of study

2011

Number

1

State

US

Pages from

1

Pages to

11

Pages count

11

URL

Full text in the Digital Library

Documents

BibTex


@article{BUT51005,
  author="Jaromír {Mačák} and Jiří {Schimmel}",
  title="Real-Time Guitar Preamp Simulation Using Modified Blockwise Method and Approximations",
  annote="The designing of algorithms for real-time digital simulation of analog effects and amplifiers brings two contradictory requirements: accuracy versus computational efficiency. In this paper, the simulation of a typical guitar tube preamp using an approximation of the solution of differential equations is discussed with regard to accuracy and computational complexity. The solution of circuit equations is precomputed and stored in N-D tables. The stored values are approximated, and therefore different approximation techniques are investigated as well. The approximated functions are used for output signal computation and also for circuit state update. The designed algorithm is compared to the numerical solution of the given preamp and also to the real preamp.",
  address="Springer Nature",
  chapter="51005",
  doi="10.1155/2011/629309",
  institution="Springer Nature",
  journal="EURASIP Journal on Advances in Signal Processing",
  number="1",
  volume="2011",
  year="2011",
  month="april",
  pages="1--11",
  publisher="Springer Nature",
  type="journal article - other"
}