Browse > Article

Digital Filter Model for Analog Helical Coil Spring Reverberator  

Park Joon (전북대학교 전자정보공학부)
Chon Sang-Bae (서울대학교 전기컴퓨터공학부)
Lee Jong-Hoon (전북대학교 전자정보공학부)
Sung Koeng-Mo (서울대학교 전기컴퓨터공학부)
Song Sang-Seob (전북대학교 전자정보공학부)
Abstract
This paper proposes a new Digital Reverberator that models Analog Helical Coil Spring Reverberator for guitar amplifiers. While the conventional digital reverberators are proposed to provide better sound field mainly based on room acoustics, no algorithm or analysis of digital reverberators those model Helical Coil Spring Reverberator was proposed. Considering the fact that approximately $70{\sim}80$ percent of guitar amplifiers are still with Helical Coil Spring Reverberator, research was performed based not on Room Acoustics but on Helical Coil Spring Reverberator itself as an effector. After performing simulations with proposed algorithm, it was confirmed that the Digital Reverberator by proposed algorithm provides perceptually equivalent response to the conventional Analog Helical Coil Spring Reverberators.
Keywords
Herical coil spring reverberator; Reverberation time;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Laurens Hammond, 'Electrical Musical Instrument (Original Reverb Patent),' US Patent 230836, 1941
2 Lawrence E. Kinsler, Austin R. Frey, Alan B. Coppens, James V. Sanders, 'Fundamentals of Acoustics, 4th Ed.,' John Wiley & Sons Inc., 2000
3 ITU-R Recommendation BS. 1534-1, 'Method for Subject Assessment of Intermediate Sound Quality (MUSHRA),' International Telecommunication Union, Geneva, Switzerland, 2001
4 Swen Muller, Paulo Massarani, 'Transfer-Function Measurement with Sweeps,' Journal of Audio Engineering Society, 49 (6) 2001
5 Thomas D. Rossing, F. Richard Moore, Paul A. Wheeler, 'The Science of Sound, 3rd Ed.,' Addison Wesley, 2002
6 'www.accutronicsreverb.com', The History of Spring Reverberation