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All Journal Jurnal Media Elektro : Journal of Electrical Power, Informatics, Telecommunication, Electronics, Computer and Control System Proceeding Applied Business and Engineering Conference
Ariep Jaenul
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ANALISIS PERBANDINGAN PERFOMANSI CODEC G.711, G.722 DAN OPUS PADA IMPLEMENTASI LAYANAN VOICE OVER INTERNET PROTOCOL (VOIP) BERBASIS RASPBERRY PI SERVER MENGGUNAKAN METODE MOS E-MODEL (ITU-T G.107) Chika Yunita; Baso Maruddani; Wisnu Djatmiko; Ariep Jaenul
ABEC Indonesia Vol. 9 (2021): 9th Applied Business and Engineering Conference
Publisher : Politeknik Caltex Riau

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Abstract

The purpose of this research is to implement a Raspberry Pi server-based Voice over Internet Protocol (VoIP) service in a small office using the G.711, G.722 and Opus codecs where these codecs do not have a license (free) and have been integrated in various softphones and to see the sound quality resulting from the communication carried out and to see the quality, voice compression (codec) which is the most appropriate / stable on the Wireless LAN network. In testing this VoIP network using G.722, G.711, and Opus audio codecs based on signal strength (RSSI) on the Wireless LAN network as data to be analyzed using the MOS E-Model ITU-T G.107 method. Call testing is done 10 times on each codec. The average delay is 20,507 ms for the G.722 codec, 20,435 ms for the G.711 codec and 20,492 ms for the Opus codec. The average packet loss was 0.711% for G.722 codec, 0.870% for G.711 codec and 1.427% for Opus codec. Based on the results of calculations using the E-Model ITU-T G.107 MOS method, the average yield is 4,155 for the G.722 codec, 4,133 for the G.711 codec and 4.059 for the Opus codec. Based on the results of calculations using the MOS E-Model method, it is generally found that the G.722 codec has better quality than the three codecs tested, because it is more resistant to packet loss based on signal strength (RSSI) received by each client so that the R Factor conversion to MOS yields the highest average MOS value.
ANALISIS PENGARUH CUACA TERHADAP EFISIENSI PANEL SURYA GRID TIE MENGGUNAKAN KONFIGURASI MICRO INVERTER DAN STRING INVERTER TERHADAP ENERGI YANG DIHASILKAN Setyo Purnomo; Yanuar Zulardiansyah Arief; Ariep Jaenul; Sinka Wilyanti
Jurnal Media Elektro Vol 12 No 2 (2023): Oktober 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jme.v12i2.12648

Abstract

Sistem PLTS grid tie dalam proses instalasinya dapat dilakukan dengan konfigurasi micro inverter dan string inverte. Penelitian ini menggunakan metode eksperimen dengan melakukan pengukuran berupa tegangan, arus, daya, energi listrik (kWh), dan faktor daya pada titik-titik pengukuran yang telah ditentukan. Analisis dilakukan dengan berbagai kondisi cuaca baik cerah, berawan, maupun kondisi hujan untuk memperoleh performa efisiensi energi listrik yang dihasilkan serta dilakukan uji kedua-dua model konfigurasi untuk memperoleh nilai signifikansi pada kedua konfigurasi ini. Dari analisis data diperoleh hasil yaitu micro inverter memiliki performa lebih baik pada berbagai kondisi cuaca, dan memiliki perbedaan yang signifikan dibanding string inverter sebesar 9,93%. Dalam kondisi cuaca cerah micro inverter juga menghasilkan daya listrik yang lebih baik sebesar 20,43%. Sebaliknya dalam kondisi cuaca berawan, konfigurasi string inverter menghasilkan performa daya listrik yang lebih baik sebesar 14,97%. Photovoltaic module dengan konfigurasi micro inverter memiliki efsiensi rata-rata 10,03% - 11,4% sedang string inverter memiliki efisiensi rata-rata 7,17% - 9%. Besarnya faktor daya konfigurasi micro inverter sebesar 0,35 dan string inverter memiliki faktor daya sebesar 0,4.
Co-Authors Baso Maruddani Chika Yunita Setyo Purnomo Sinka Wilyanti Wisnu Djatmiko Yanuar Zulardiansyah Arief