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High-Precision Fractional-Order Integrator for Generating Pink Noise from White Noise (CROSBI ID 719933)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Tokić, Duje ; Jurišić, Dražen High-Precision Fractional-Order Integrator for Generating Pink Noise from White Noise // Proceedings of the 2022 45th Jubilee International Convention on Information, Communication and Electronic Technology (MIPRO) / Koricic, Marko et al. (ur.). Opatija: Institute of Electrical and Electronics Engineers (IEEE), 2022. str. 191-194 doi: 10.23919/MIPRO55190.2022.9803506

Podaci o odgovornosti

Tokić, Duje ; Jurišić, Dražen

engleski

High-Precision Fractional-Order Integrator for Generating Pink Noise from White Noise

For audio testing, a pink noise generator is a very useful and widely used tool for equalization of loudspeaker systems, room acous tics and crossovers. It can be built as a digital, analog or mixed circuit. The pink noise generator consists of a white noise source followed by a fractional order i ntegrator (FOI) with a roll-off of 10 dB/decade. In this way, theobtained output power is constant in each decade, which is essential for testing audio devices within the entire audio frequency ban d. In this paper, an active realization of an FOI with an order 1/2 is presented, using an active-RC circuit that uses an operational amplifier as the active element. To build an FOI, we can use different approximation methods. We use our recently published Minimax method (MMX), with unequally (optimally) spaced singularities and compare it with a method proposed by other authors. The latter intuitively considers optimal singularities equally spaced on a logarithmic scal e. We demonstrate the superiority of our proposed MMX approach.

pink noise ; analog circuits ; circuit synthesis ; fractional order integrator ; approximation ; active-RC circuits ; electrical filters

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Podaci o prilogu

191-194.

2022.

nije evidentirano

objavljeno

978-953-233-103-5

10.23919/MIPRO55190.2022.9803506

Podaci o matičnoj publikaciji

Proceedings of the 2022 45th Jubilee International Convention on Information, Communication and Electronic Technology (MIPRO)

Koricic, Marko et al.

Opatija: Institute of Electrical and Electronics Engineers (IEEE)

2623-8764

Podaci o skupu

MIPRO 2022

predavanje

23.05.2022-27.05.2022

Opatija, Hrvatska

Povezanost rada

Elektrotehnika

Poveznice