The purpose of the thesis is to find solution for elecroacoustic companies, professionals or amateurs to build good and efficient loudspeaker enclosure with a particular focus on the low frequency range. We tackled the thesis within the framework of an electroacoustic company, Sagemcom, that searches innovative solution to mount reduced size woofers in a little box. While keeping competitive performances in the low frequency band. To respond at the problematic we had first to list the existing solutions for enhancing the low frequencies of a loudspeaker. In this first part we also detailed the scientific ideas and solutions that will help us to respond at the problematic. During the ongoing of the thesis we thought that the location and the devices used for acoustic measurement where unique and it necessitates an explanation. Indeed, the solution found is so particular that it needs a clear and detailed methodology. Finally, the solution found focuses on the digital innovation with the use of a digital sound processor. Thanks to the several measurements we were able to calibrate filters in the DSP and enhance the low frequencies of a loudspeaker fixed in a box of little volume
Lo scopo della tesi è quello di trovare una soluzione per le aziende, i professionisti o i privati per la costruzione di casse acustiche valide ed efficienti, con particolare attenzione alla basse frequenze. Abbiamo affrontato la tesi nell’ambito di un’azienda elettroacustica, Sagemcom, che cerca una soluzione innovativa per montare woofer di dimensioni ridotte in una piccola scatola. Pur mantenendo prestazioni competitive nella banda delle basse frequenze. Per rispondere al problema abbiamo dovuto prima elencare le soluzioni esistenti per migliorare le basse frequenze di un altoparlante. In questa prima parte abbiamo anche dettagliato le idee e le soluzioni scientifiche che ci aiuteranno a rispondere al problema. Durante la stesura della tesi abbiamo pensato che il luogo e i dispositivi utilizzati per la misurazione acustica fossero unici e richiedessero una spiegazione. Infatti, la soluzione trovata è così particolare da richiedere una metodologia chiara e dettagliata. Infine, la soluzione trovata si concentra sull’innovazione digitale con l’uso di un processore acustico digitale. Grazie a diverse misure siamo riusciti a calibrare i filtri del processore e a migliorare le basse frequenze di un altoparlante fissato in una scatola di poco volume.
Optimization of electroacoustic methodologies for sound improvement in the low band frequencies
Borius, Djavan
2024/2025
Abstract
The purpose of the thesis is to find solution for elecroacoustic companies, professionals or amateurs to build good and efficient loudspeaker enclosure with a particular focus on the low frequency range. We tackled the thesis within the framework of an electroacoustic company, Sagemcom, that searches innovative solution to mount reduced size woofers in a little box. While keeping competitive performances in the low frequency band. To respond at the problematic we had first to list the existing solutions for enhancing the low frequencies of a loudspeaker. In this first part we also detailed the scientific ideas and solutions that will help us to respond at the problematic. During the ongoing of the thesis we thought that the location and the devices used for acoustic measurement where unique and it necessitates an explanation. Indeed, the solution found is so particular that it needs a clear and detailed methodology. Finally, the solution found focuses on the digital innovation with the use of a digital sound processor. Thanks to the several measurements we were able to calibrate filters in the DSP and enhance the low frequencies of a loudspeaker fixed in a box of little volume| File | Dimensione | Formato | |
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2025_7_Borius.pdf
solo utenti autorizzati a partire dal 23/06/2026
Descrizione: Thesis text
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21.79 MB
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https://hdl.handle.net/10589/239741