Real-time implementation of a linear-phase octave graphic equalizer

Valeria Bruschi; Stefania Cecchi; Alessandro Nicolini; Vesa Välimäki

Real-time implementation of a linear-phase octave graphic equalizer

Valeria Bruschi, Stefania Cecchi, Alessandro Nicolini, Vesa Välimäki

Informaatio- ja tietoliikennetekniikan laitos

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

39 Lataukset (Pure)

Abstrakti

This paper proposes a real-time implementation of a linear-phase octave graphic equalizer (GEQ), previously introduced by the same authors. The structure of the GEQ is based on interpolated finite impulse response (IFIR) filters and is derived from a single prototype FIR filter. The low computational cost and small latency make the presented GEQ suitable for real-time applications. In this work, the GEQ has been implemented as a plugin of a specific software, used for real-time tests. The performance of the equalizer has been evaluated through subjective tests, comparing it with a filterbank equalizer. For the tests, four standard equalization curves have been chosen. The experimental results show promising outcomes. The result is an accurate real-time-capable linear-phase GEQ with a reasonable latency.

Alkuperäiskieli	Englanti
Otsikko	Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)
Toimittajat	E. De Sena, J. Mannall
Julkaisupaikka	Guildford, UK
Kustantaja	University of Surrey
Sivut	459-466
Sivumäärä	8
Vuosikerta	27
Tila	Julkaistu - 3 syysk. 2024
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisussa
Tapahtuma	International Conference on Digital Audio Effects - University of Surrey, Guildford, Iso-Britannia Kesto: 3 syysk. 2024 → 7 syysk. 2024 Konferenssinumero: 27 https://dafx24.surrey.ac.uk/

Julkaisusarja

Nimi	Proceedings of the International Conference on Digital Audio Effects
ISSN (elektroninen)	2413-6689

Conference

Conference	International Conference on Digital Audio Effects
Lyhennettä	DAFX
Maa/Alue	Iso-Britannia
Kaupunki	Guildford
Ajanjakso	03/09/2024 → 07/09/2024
www-osoite	https://dafx24.surrey.ac.uk/

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DAFx24_paper_69
Creative Commons Attribution 4.0 International License
Final published version, 1,96 MBLisenssi: CC BY

https://www.dafx.de/paper-archive/2024/papers/DAFx24_paper_69.pdfLisenssi: CC BY

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https://www.dafx.de/paper-archive/

Akustiikan laboratorio
Pulkki, V. (Manager)
Sähkötekniikan korkeakoulu
Laitteistot/tilat: Facility

Valeria Bruschi
Välimäki, V. (Host) & Liski, J. (Host)
13 syysk. 2021 → 17 jouluk. 2021
Aktiviteetti: Isännöity akateeminen vierailu Aalto-yliopistossa

Siteeraa tätä

Bruschi, V., Cecchi, S., Nicolini, A., & Välimäki, V. (2024). Real-time implementation of a linear-phase octave graphic equalizer. teoksessa E. De Sena, & J. Mannall (Toimittajat), Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24) (Vuosikerta 27, Sivut 459-466). Artikkeli 69 (Proceedings of the International Conference on Digital Audio Effects). University of Surrey. https://www.dafx.de/paper-archive/2024/papers/DAFx24_paper_69.pdf

Bruschi, Valeria ; Cecchi, Stefania ; Nicolini, Alessandro et al. / Real-time implementation of a linear-phase octave graphic equalizer. Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24). Toimittaja / E. De Sena ; J. Mannall. Vuosikerta 27 Guildford, UK : University of Surrey, 2024. Sivut 459-466 (Proceedings of the International Conference on Digital Audio Effects).

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title = "Real-time implementation of a linear-phase octave graphic equalizer",

abstract = "This paper proposes a real-time implementation of a linear-phase octave graphic equalizer (GEQ), previously introduced by the same authors. The structure of the GEQ is based on interpolated finite impulse response (IFIR) filters and is derived from a single prototype FIR filter. The low computational cost and small latency make the presented GEQ suitable for real-time applications. In this work, the GEQ has been implemented as a plugin of a specific software, used for real-time tests. The performance of the equalizer has been evaluated through subjective tests, comparing it with a filterbank equalizer. For the tests, four standard equalization curves have been chosen. The experimental results show promising outcomes. The result is an accurate real-time-capable linear-phase GEQ with a reasonable latency.",

keywords = "Audio signal processing, digital filters, equalization",

author = "Valeria Bruschi and Stefania Cecchi and Alessandro Nicolini and Vesa V{\"a}lim{\"a}ki",

year = "2024",

month = sep,

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language = "English",

volume = "27",

series = "Proceedings of the International Conference on Digital Audio Effects",

publisher = "University of Surrey",

pages = "459--466",

editor = "{De Sena}, E. and J. Mannall",

booktitle = "Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)",

address = "United Kingdom",

note = "International Conference on Digital Audio Effects, DAFX ; Conference date: 03-09-2024 Through 07-09-2024",

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Bruschi, V, Cecchi, S, Nicolini, A & Välimäki, V 2024, Real-time implementation of a linear-phase octave graphic equalizer. julkaisussa E De Sena & J Mannall (toim), Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24). Vuosikerta 27, 69, Proceedings of the International Conference on Digital Audio Effects, University of Surrey, Guildford, UK, Sivut 459-466, International Conference on Digital Audio Effects, Guildford, Iso-Britannia, 03/09/2024. <https://www.dafx.de/paper-archive/2024/papers/DAFx24_paper_69.pdf>

Real-time implementation of a linear-phase octave graphic equalizer. / Bruschi, Valeria; Cecchi, Stefania; Nicolini, Alessandro et al.
Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24). toim. / E. De Sena; J. Mannall. Vuosikerta 27 Guildford, UK: University of Surrey, 2024. s. 459-466 69 (Proceedings of the International Conference on Digital Audio Effects).

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference article in proceedings › Scientific › vertaisarvioitu

TY - GEN

T1 - Real-time implementation of a linear-phase octave graphic equalizer

AU - Bruschi, Valeria

AU - Cecchi, Stefania

AU - Nicolini, Alessandro

AU - Välimäki, Vesa

N1 - Conference code: 27

PY - 2024/9/3

Y1 - 2024/9/3

N2 - This paper proposes a real-time implementation of a linear-phase octave graphic equalizer (GEQ), previously introduced by the same authors. The structure of the GEQ is based on interpolated finite impulse response (IFIR) filters and is derived from a single prototype FIR filter. The low computational cost and small latency make the presented GEQ suitable for real-time applications. In this work, the GEQ has been implemented as a plugin of a specific software, used for real-time tests. The performance of the equalizer has been evaluated through subjective tests, comparing it with a filterbank equalizer. For the tests, four standard equalization curves have been chosen. The experimental results show promising outcomes. The result is an accurate real-time-capable linear-phase GEQ with a reasonable latency.

AB - This paper proposes a real-time implementation of a linear-phase octave graphic equalizer (GEQ), previously introduced by the same authors. The structure of the GEQ is based on interpolated finite impulse response (IFIR) filters and is derived from a single prototype FIR filter. The low computational cost and small latency make the presented GEQ suitable for real-time applications. In this work, the GEQ has been implemented as a plugin of a specific software, used for real-time tests. The performance of the equalizer has been evaluated through subjective tests, comparing it with a filterbank equalizer. For the tests, four standard equalization curves have been chosen. The experimental results show promising outcomes. The result is an accurate real-time-capable linear-phase GEQ with a reasonable latency.

KW - Audio signal processing

KW - digital filters

KW - equalization

UR - https://www.dafx.de/paper-archive/

M3 - Conference article in proceedings

VL - 27

T3 - Proceedings of the International Conference on Digital Audio Effects

SP - 459

EP - 466

BT - Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24)

A2 - De Sena, E.

A2 - Mannall, J.

PB - University of Surrey

CY - Guildford, UK

T2 - International Conference on Digital Audio Effects

Y2 - 3 September 2024 through 7 September 2024

ER -

Bruschi V, Cecchi S, Nicolini A, Välimäki V. Real-time implementation of a linear-phase octave graphic equalizer. julkaisussa De Sena E, Mannall J, toimittajat, Proceedings of the 27th International Conference on Digital Audio Effects (DAFx24). Vuosikerta 27. Guildford, UK: University of Surrey. 2024. s. 459-466. 69. (Proceedings of the International Conference on Digital Audio Effects).

Real-time implementation of a linear-phase octave graphic equalizer

Abstrakti

Julkaisusarja

Conference

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Sormenjälki

Laitteet

Akustiikan laboratorio

Aktiviteetit

Valeria Bruschi

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