Quality Evaluation of Speech Transmission via Two-way BPL-PLC Voice Communication System in an Underground Mine

• Autorzy: Falkowski-Gilski Przemysław , Debita Grzegorz

Identyfikatory

DOI

10.24425/aoa.2023.146816

• Języki publikacji: EN

Abstrakty

EN

In order to design a stable and reliable voice communication system, it is essential to know how many resources are necessary for conveying quality content. These parameters may include objective quality of service (QoS) metrics, such as: available bandwidth, bit error rate (BER), delay, latency as well as subjective quality of experience (QoE) related to user expectations. QoE is expressed as clarity of speech and the ability to interpret voice commands with adequate mean opinion score (MOS) grades. This paper describes a quality evaluation study of a two-way speech transmission system via bandwidth over power line – power line communication (BPL-PLC) technology in an operating underground mine. We investigate how different features of the available wired medium can affect end-user quality. The results of the described study include: two types of coupling (capacitive and inductive), two transmission modes (mode 1 and 11), and four language sets of speech samples (American English, British English, German, and Polish) encoded at three different bit rates (8, 16, and 24 kbps). Our findings can aid both researchers working on low-bit rate coding and compression, signal processing and speech perception, as well as professionals active in the mining and oil industry.

Słowa kluczowe

EN

coding; communication applications; compression; signal processing; speech processing; quality of service

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2023
• Tom: Vol. 48, No. 4
• Strony: 585--592
• Opis fizyczny: Bibliogr. 36 poz., fot.., rys., tab., wykr.

Twórcy

autor

Falkowski-Gilski Przemysław

• Faculty of Electronics, Telecommunications and Informatics Gdańsk University of Technology Gdańsk, Poland

• https://orcid.org/0000-0001-8920-6969

autor

Debita Grzegorz

• General Tadeusz Kosciuszko Military University of Land Forces Wrocław, Poland

• https://orcid.org/0000-0003-1984-4740

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).