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All Journal Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Elektronika Listrik dan Teknologi Informasi Terapan
Ahmad Ridwan
Politeknik Jambi
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Analisis Kinerja Skema MPEG Surround Pada Pengkodean Audio 22 Kanal Menggunakan Bitrate 1000 - 2000 Kbps Ahmad Ridwan; Vitral JR; Habib Satria; Ikhwana Elfitri
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 5 No 5 (2021): Oktober2021
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (697.689 KB) | DOI: 10.29207/resti.v5i5.3372

Abstract

MPEG surround is one of the most popular multichannel audio coding standards used today. In producing quality sound, there are several parts that are influential, but those that are directly related to sound reproduction, one of which is the method of downmixing, mixing the right channels will improve the quality of the sound produced. Because this research is closely related to data computing, the Matrix Laboratory (MATLAB) application is used. There are 2 stages carried out in the MATLAB application, namely the encoding and decoding process. In the encoding process in MATLAB, each audio channel is set according to a previously designed scheme. The results of this encoding are then decoded, so that the ODG value of each tested audio channel is obtained. In his presentation, the design and analysis of several domnmixing schemes was carried out. There are 5 schemes tested and to determine the performance of each scheme, these schemes are tested at high bitrates, from the range of 1000 Kbps to 2000 Kbps. Based on the test, it was found that the effect of increasing the bitrate is directly proportional to the resulting audio quality. During testing Scheme-5 has a better level of stability among all downmixing schemes and the average percentage increase in Objective Difference Grade (ODG) for all audio samples is 9.6927 %.
Perancangan Human Machine Interface (HMI) Pada Modul Praktikum Sistem HMI Berbasis PLC Omron CP1E NA20DRA Eggy Depto Maniar; Sigit Kurniawan; Maizal Isnen; Ahmad Ridwan
Jurnal Elektronika Listrik dan Teknologi Informasi Terapan Vol. 3 No. 1 (2021): ELTI Desember
Publisher : LPPM Politeknik Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37338/elti.v3i1.193

Abstract

This study aims to design practical learning media. The Human Machine Interface (HMI) learning module consists of a monitor to display control menus, PLC devices, and input-output devices. The design of the exemplary HMI display is needed to provide the required information to the user. The research method used in this study uses experimental methods and program design on the trainer module. From the study results, it can conclude that the use of the Omron CP1E NA20DRA PLC-Based HMI system is effortless to use as a learning medium and can train students in improving PLC programming skills.
Co-Authors Eggy Depto Maniar Habib Satria Ikhwana Elfitri Maizal Isnen Sigit Kurniawan Vitral JR