MIO effect processor
Authors
Zovnercuka, Jelizaveta ; Konovalovs, Kristians
Term
4. Term
Education
Publication year
2019
Submitted on
2019-06-25
Pages
68
Abstract
Live music is growing, and guitarists need flexible, reliable stage setups. Traditional stompbox effect pedals provide rich functionality but are heavy, cable-dependent, and tie performers to one spot. This thesis addresses the research question: How can we provide guitar players with the same level of functionality as stompbox effect pedals while improving mobility? Building on advances in digital signal processing and embedded computing (including low-latency processing, where <10 ms is widely considered acceptable), the work argues that digital audio can now approach analog quality for many applications. The thesis analyzes analog versus digital domains, introduces DSP and common effects, considers the role of visuals in performance, compares microcontrollers with portable computers and wireless options (Wi-Fi vs Bluetooth), and surveys state-of-the-art devices to identify advantages and limitations. From this, it defines a target group and design requirements, then presents a concept for a portable digital effects processor, MIO, comprising an onstage foot controller, a mobile app for configuration, and a DSP unit for audio processing. The design includes activation movement, a setting device with a pilot test, and a finalized mobile app UI, and the implementation details the overall setup and subsystems. Evaluation is planned through usability testing, musician case studies, and a mobility test focusing on comfort, reliability, feedback/intuitiveness, and parameter adjustment; detailed findings are reported later in the thesis and are not included in this excerpt.
Live-musik er i vækst, og guitarister efterspørger fleksible, pålidelige løsninger til scenen. Klassiske stompbox-effektpedaler giver stor funktionalitet, men de er tunge, kabeltætte og låser musikeren til et fast sted. Dette speciale adresserer derfor forskningsspørgsmålet: Hvordan kan vi give guitarister samme funktionalitet som stompboxe og samtidig forbedre mobiliteten? Med afsæt i fremskridt inden for digital signalbehandling og indlejrede processorer (bl.a. lav latenstid, hvor <10 ms betragtes som acceptabelt) argumenterer arbejdet for, at digital lydkvalitet i dag kan matche analog i mange anvendelser. Specialet analyserer analog vs. digital domæne, introducerer DSP og almindelige lydeffekter, belyser visuelle aspekter i performance, sammenligner mikrocontrollere og bærbare computere samt trådløse teknologier (Wi-Fi vs. Bluetooth), og gennemgår state-of-the-art udstyr for at identificere fordele/ulemper. På den baggrund defineres målgruppe og designkrav, hvorefter der præsenteres et koncept for en bærbar digital effektprocessor, MIO, bestående af en fodcontroller til scenestyring, en mobilapp til konfiguration og en DSP-enhed til selve lydbehandlingen. Designet omfatter aktiveringsbevægelse, indstillingsenhed og en pilottest af indstillingsenheden samt en endelig app-udformning. Implementeringen beskriver det samlede setup og delkomponenterne. Evalueringen er planlagt som brugervenlighedstest, casestudier med musikere og en mobilitetstest, der blandt andet undersøger komfort, pålidelighed, feedback/intuitivitet og indstillingsmuligheder; detaljerede resultater behandles i senere kapitler og fremgår ikke af dette uddrag.
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Keywords