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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Perfecting a Video Game with Game Metrics Teknika Journal of Engineering and Technological Sciences EMITTER International Journal of Engineering Technology KLIK (Kumpulan jurnaL Ilmu Komputer) (e-Journal) Jurnal Komputer Terapan Jurnal Teknik Elektro Uniba (JTE Uniba) Budimas : Jurnal Pengabdian Masyarakat Indonesian Journal of Computer Science
Titon Dutono
Politeknik Elektronika Negeri Surabaya (PENS), Indonesia
Religion Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Social Sciences Other

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Pemanfaatan Teknik Voice Activity Detection Untuk Mengamati Prosentase Pendudukan Sinyal Wicara Pada Saluran Telephon Rena Widyaningtyas, ; Mike Yuliana, ; Tri Budi Santoso, ; Titon Dutono,
Teknika Vol 9, No 2 (2008)
Publisher : Teknika

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Abstract

Dalam penelitian ini dilakukan sebuah pengamatan nilai prosentase pendudukan sinyal wicara pada saluran telephon. Kondisi voice ditandai sebagai suatu kondisi di mana terdapat sinyal wicara yang terdeteksi oleh sistem. Kondisi silent dapat diartikan sebagai sebuah kondisi di mana tidak ada sinyal wicara yang menduduki sistem. Penentuan kapan kondisi voice atau silent dapat dilakukan dengan teknik voice activity detection (VAD). Sinyal wicara yang melalui jalur telephon disampel dan disusun dalam bentuk frame. Proses penghitungan energi pada setiap frame untuk penentuan kondisi voice atau silent dengan memanfaatkan short term energy (STE) dengan level standar dari ambang pendengaran. Hasil penghitungan ini dikombinasikan dengan proses pitch detection untuk menentukan kondisi voice atau bukan (silent). Berapa besar prosentase nilai voice dari total waktu yang digunakan akan menentukan prosentase pendudukan sinyal wicara pada saluran telephon. Hasil akhir dari penelitian ini berupa prosentase kondisi voice atau bukan voice (silent). Dari hasil ini dapat diketahui karakteristik penggunaan sinyal wicara pada saluran telephon kurang lebih 35.06% untuk pembicara perempuan dan 26,6% untuk pembicara laki-laki. Dengan  demikian akan memungkinkan prosentase saluran tanpa ada sinyal wicara bisa digunakan untuk keperluan transmisi data yang lain. This paper described an observation of the percentage of speech signal occupation on the telephone line. The voice signal was signed by the condition where the speech signals detected by the system. The silent condition was defined by the condition where the speech signals did not detected by the system. The decision when the voice or silent was happened can do by using voice activity detection (VAD) technique. Speech signal through telephone line was sampled and framed. Short term energy (STE) computation based on standard energy threshold of hearing, for each frame for make a decision when the voice or silent happened. The total value of voice compare the total duration of occupation the talking time is used as the percentage of voice occupation on the telephone line.   The result of the experiment indicated that the characteristics of speech occupation in the telephone line did not more than 35.06% for female speaker and 26.60% for male speaker. Based on this real condition of the telephone line, we can see there were opportunities for other utilization, especially for data transmission.  
PROTOTIPE MODUL PENGAMATAN SINYAL DOMAIN WAKTU DAN FREKUENSI SECARA REAL TIME UNTUK PRAKTIKUM PENGOLAHAN SINYAL DIGITAL Tri Budi Santoso; Hary Octavianto; Titon Dutono
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 3, No 3: December 2005
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v3i3.1229

Abstract

Sebuah prototipe sistem pengolahan sinyal digital menggunakan TMS32C5402 yang didukung bahasa C disajikan pada paper ini. Prototipe ini sebagai sebuah educational tool dalam proses pembelajaran konsep pengolahan sinyal digital dan merealisasikannya secara real time. Pembentukan modul perangkat lunak berbasis bahasa C sudah terintegrasi dalam paket DSP starter kit (DSK). Proses compiling, assembling dan downloading dilakukan secara otomatis ke board TMS32C5402.
Implementasi Real Time Voice Scrambler pada DSK TMS320C5402 dengan Menggunakan Metode Kriptografi RC4 Mike Yuliana; Titon Dutono; Wirawan Wirawan
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2007
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Abstract

Pada paper ini, metode kriptografi RC4 akan diimplementasikan pada DSK TMS320C5402 sebagaimetode yang digunakan untuk mengacak suara. Sistem tersebut bisa berhasil bila proses enkripsi/dekripsi bisareal time, dan dari hasil pengukuran terlihat bahwa sistem yang dihasilkan bisa real time karena waktu eksekusiproses enkripsi/dekripsi tiap sampel tidak melebihi 125 μ detik, dimana waktu eksekusi yang dibutuhkan untukproses enkripsi adalah 1,260 μ detik sedangkan waktu eksekusi yang dibutuhkan untuk proses dekripsi adalah1,140 μ detik.Dari hasil analisa terlihat bahwa sinyal suara hasil enkripsi berbeda dengan sinyal suara aslinya,sedangkan sinyal suara hasil dekripsi sama dengan sinyal suara aslinya dan apabila kita dengarkan ternyatasinyal suara hasil dekripsi sama dengan sinyal suara aslinya . Hal ini menunjukkan keberhasilan DSKTMS320C5402 sebagai enkriptor/dekriptor suara, karena suara hasil dekripsi bisa didengarkan seperti sinyalsuara aslinyaKata kunci: DSK TMS320C5402, Metode enkripsi/dekripsi RC4, MOS, Intelligibility suara.
A Simplified Sounding System for Finding NVIS Channel Availability to Support Government Radio Networks in Indonesia Titon Dutono; Zulmi Zakariyah; Tribudi Santoso; Denny Setiawan
EMITTER International Journal of Engineering Technology Vol 7 No 1 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (16.57 KB) | DOI: 10.24003/emitter.v7i1.388

Abstract

Mostly  natural disasters in Java Island such as landslides are within the vicinity of not more than 200 Km from the district capital. Cellular communications require complex systems and rather vulnerable  to cope with disasters. NVIS mode is considered as a simple radio link during disaster mitigation initiation process. It needs a valid estimation to figure out the condition of the ionosphere. There are two purposes of this study, the first of which is an attempt to find out a fact the existences of authorized HF users who still work in the band of 3 MHz – 10 MHz.  The second is to integrate low cost HF radio communication, commonly available small single board computer hardware, and opensource software, to build a sounding system to evaluate the quality of NVIS channels. Prediction system such VOACAP give hourly prediction data, however it has an inherent limitation because of   nature the underlying databases is monthly average based, therefore, the estimation could not be made in a daily bases. However, a real-time channel evaluation (RTCE)  able to purify maximum observed frequency (MOF) estimation, and consequently, its able to select the best available frequency for short term  and real time operation. In this study, we used WSPR to perform a simple RTCE technique. Furthermore, we also reviewed the current regulatory status regarding  the availability of sub-10 MHz band for NVIS radio operation. The results show that discrepancies between simulation and measurement are occurred mainly because of sporadic data in the band of 60m and 80m. However, all of the measurement results and simulations almost have the same agreement regarding the quiet period between local midnight and local sunrise. The results of measurements show that 60m band is the most reliable NVIS channel between local sunrise and local midnight. Furthermore, 100 watts is a proper transmitter power to reach the required SNR for reliable voice communication. 
Secure Data Travelling User using Hybrid Cryptosystem with User Privacy Protection Anindya Dwi Putri Islamidina; Amang Sudarsono; Titon Dutono
EMITTER International Journal of Engineering Technology Vol 8 No 1 (2020)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v8i1.486

Abstract

Nowadays traveling is the activity that everyone likes the most, but sometimes there is one traveling member who is lost and confused looking for the location of the other members. When traveling, they must bring a smartphone because of its small size and easy to carry anywhere. For this reason, an Android-based smartphone application that is able to send GPS data to all travelling members is proposed. In order to secure data transmission, cryptography and group signature to ensure that only traveling members could find out the location are applied. We use hybrid cryptography, which is a combination of symmetric cryptography using AES and asymmetric cryptography using IB-mRSA. We also add group signature as verification that members are in the same traveling group. The test result showed that the proposed method is safer than the comparison method because the symmetric key is encrypted before the key is distributed, so the attacker can not know the key. The total processing time needed to send data until member get data is 2.01 s.
FENOMENA SPORADIC E FREKUENSI 5.2 MHZ PADA KONDISI SOLAR MINIMUM TAHUN 2019 Zulmi Zakariyah; Titon Dutono; Tri Budi Santoso; Bustamir Arif
KLIK- KUMPULAN JURNAL ILMU KOMPUTER Vol 7, No 2 (2020)
Publisher : Lambung Mangkurat University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/klik.v7i2.314

Abstract

High Frequency (HF) Communication is very dependent on the condition of the ionosphere which changes conditions over time. 2019 is a year with minimum solar conditions marked by a lack of solar cold spots. This condition can cause interference with the propagation path of radio waves in the ionosphere. In this research, a report on HF wave propagation observations is presented using a retrospective method to determine the sporadic E intensity at minimum solar conditions. Data retrieval is done by beacon / sounding system between radio stations by using a low power signal processing software that is Weak Signal Propagation Report (WSPR). Observations were made by building 2 radio stations in Surabaya (7.30S, 112.78E) as transmitter and radio stations in Jombang (7.61S, 112.31E) as receiver. Observations were carried out for one year from November 2018 until October 2019. During the observation process, a frequency of 5.2 MHz is used and the results showed that there were several days that described a favorable phenomenon for HF communication at close range (below 500 km), namely Sporadic E. During the observation it was obtained 8 times the Sporadic E phenomenon that is quite long with a time span of occurrence between 1 hour to 3 hours. Overall observations show that in May to August is the time when most Sporadic E phenomena occur. So from this research, it can be concluded that the sporadic E phenomenon can still occur when the sun enters the minimum solar conditions.Keywords: HF, Solar Minimum, Ionospher, Sporadic E Komunikasi High Frequency (HF) sangat bergantung pada kondisi ionosfer yang mengalami perubahan kondisi dari waktu ke waktu. Tahun 2019 merupakan tahun dengan kondisi solar minimum yang ditandai dengan minimnya nilai titik dingin matahari. Kondisi ini dapat mengakibatkan gangguan pada jalur propagasi gelombang radio di lapisan ionosfer. Pada penelitian ini, disajikan laporan pengamatan propagasi gelombang HF menggunakan metode retrospektif untuk mengetahui intensitas sporadic E saat kondisi solar minimum. Pengambilan data dilakukan dengan sistem beacon / sounding antar stasiun radio dengan memanfaatkan software pengolahan sinyal daya rendah yaitu Weak Signal Propagation Report (WSPR). Pengamatan dilakukan dengan membangun 2 stasiun radio yang berada di Surabaya (7.30S, 112.78E) sebagai pemancar dan stasiun radio di Jombang (7.61S, 112.31E) sebagai penerima. Pengamatan dilakukan selama satu tahun dari bulan November 2018 sampai dengan bulan Oktober 2019. Pada proses pengamatan digunakan frekuensi 5.2 MHz dan hasilnya menunjukkan terdapat beberapa hari yang menggambarkan fenomena menguntungkan untuk komunikasi HF jarak dekat (dibawah 500 km) yaitu Sporadic E. Selama pengamatan telah didapatkan 8 kali fenomena Sporadic E yang cukup lama dengan rentang waktu kejadian antara 1 jam hingga 3 jam. Secara keseluruhan hasil pengamatan menunjukkan bahwa pada bulan Mei hingga bulan Agustus merupakan waktu paling banyak terjadinya fenomena Sporadic E. Sehingga dari penelitian ini dapat disimpulkan bahwa fenomena sporadic E masih bisa terjadi ketika matahari memasuki kondisi solar minimum.Kata kunci: HF, Solar Minimum, Ionosfer, Sporadic E
Identifikasi Jenis Kelamin Secara Real Time Berdasarkan Suara Pada Raspberry Pi Mirza Ardiana; Titon Dutono; Tri Budi Santoso
Jurnal Komputer Terapan  Vol. 8 No. 1 (2022): Jurnal Komputer Terapan
Publisher : Politeknik Caltex Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (264.461 KB) | DOI: 10.35143/jkt.v8i1.5320

Abstract

The voice of each speaker has a unique specific character, influenced by gender, age, emotion, dialect, etc. The use of voice-based gender identification is growing rapidly, such as in the fields of security systems, speech recognition, artificial intelligence, etc. However, in speech processing, there are difficulties where the characteristics of the speech signal based on increasing age are difficult to determine accuracy, and there are overlapping fundamental frequency values between males and females. In this research, modeling of a gender identification system based on voice in real-time has been carried out on a Raspberry Pi device. This system is implemented by 2 methods, namely the YIN algorithm and feature extraction of Mel-Frequency Cepstral Coefficient (MFCC). The test results showed that the success of identification in the tuning parameters of scheme two is better than the first scheme by narrowing the overlapping frequency parameters. In the female test data in the closed test, the accuracy is from 98% to 100%, then in the open test starts from 92% to 96%. Meanwhile, the test data for the male closed test increased from 92% to 98%, and the open test started at 90% and rose to 94%. It indicates that the data used in this research is more suitable to use the second scheme parameter tuning to increase the accuracy of the results.
A Low-Cost Laboratory Practice for Fundamental Learning of Wireless Digital Communication Titon Dutono; Tri Budi Santoso
Journal of Engineering and Technological Sciences Vol. 54 No. 6 (2022)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2022.54.6.2

Abstract

Several studies have shown that the main challenge in teaching complex systems involving many theoretical backgrounds to senior students is their lack of confidence. In this paper, we present an approach to the teaching methodology of an undergraduate course in a telecommunication study program. The first goal of this methodology is to help students understand the theoretical concepts behind wireless digital communication systems through direct practice to give them more exposure to a real system through affordable practice activities in an experiential context, utilizing an HF radio and a single-board computer (SBC). The second goal is to challenge senior students to understand the data link layer by using white box testing of the syntax of the programming language embedded in the SBC. This approach is ideally carried out based on offline and hands-on class activities, however, the pandemic condition made it unavoidable to do it online using a demonstration model. Feedback from students was collected through written comments, post-testing, including a facility index analysis, and a questionnaire that was distributed using the available e-learning system. The post-test results showed that the average score was 72 out of a maximum of 100.
Instrumental Music Emotion Recognition with MFCC and KNN Algorithm Tri Budi Santoso; Titon Dutono
Indonesian Journal of Computer Science Vol. 12 No. 1 (2023): Indonesian Journal of Computer Science Volume 12. No. 1 (2023)
Publisher : STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i1.3152

Abstract

Every piece of music contains emotion in every sound presented. Detection of the music emotion is quite difficult to do because the emotions felt are subjective. Based on this problem, it is necessary to have an automatic classification system to detect the emotions produced in music. In this paper, an explanation of the result to develop an emotional classification system of instrumental music. This system described the process starting with the receiving an input in the form of a music file in the format wav. Furthermore, the feature extraction process is carried out using Mel-Frequency Cepstral Coefficients (MFCC). The result of the extraction of such features are used in the classification process using the K-Nearest Neighbor (K-NN). The system produced output in the form of happy, relaxed, and sad emotions. The output of the system has a classification achieved an accuracy of 97.5% for the value of k = 1, reaching an accuracy of 95% for the value of k = 2.95% and for k = 3, reaching an accuracy of up to 90%.
Analisis Kompatibilitas Sederhana Terhadap Kemungkinan Layanan Komunikasi Radio Nelayan Tradisional di Laut Jawa dengan Layanan Komunikasi Radio Lain pada Pita Frekuensi 5,2 MHz: A Simple Compatibility Analysis of Possible Traditional Fishermen Radio Communication Across Java Sea with Existing Radio Services in The 5.2 MHz Frequency Band Titon Dutono
Indonesian Journal of Computer Science Vol. 12 No. 2 (2023): Indonesian Journal of Computer Science Volume 12. No. 2 (2023)
Publisher : STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v12i2.3193

Abstract

Interferensi pada pita frekuensi sub-10 MHz yang disebabkan oleh pancaran ilegal oleh nelayan tradisional di sepanjang laut Jawa merupakan masalah kronis yang memerlukan penanganan mendasar untuk memitigasinya. Fihak berwenang kesulitan melokalisasi posisi emisi pancaran ilegal karena selalu bergerak di tengah laut. Oleh karena itu, fihak berwenang sedang mempertimbangkan untuk mencari pita frekuensi yang memungkinkan untuk ditetapkan sebagai alokasi frekuensi baru bagi nelayan tradisional, khususnya di wilayah Laut Jawa. Kami menawarkan segmen pita frekuensi 5,2 MHz untuk menjadi alokasi frekuensi baru ini. Untuk tujuan ini, kami melakukan analisis kompatibilitas sederhana dari pita frekuensi ini. Analisis dilakukan dengan menggunakan dua tahap. Tahap pertama dengan mempelajari regulasi telekomunikasi terkini, kemudian dilanjutkan dengan pemantauan selama satu tahun terhadap kondisi pita frekuensi tersebut. Pemantauan dilakukan pada periode aktifitas matahari minimum dengan memanfaatkan sistem WSPR yang hasilnya akan dibandingkan dengan hasil prediksi dari program aplikasi VOACAP. Hasil analisis dapat disimpulkan bahwa pita 5,2 MHz dapat digunakan oleh masyarakat nelayan tradisional di wilayah Laut Jawa. Oleh karena itu, regulator telekomuniksi dapat mempertimbangkan untuk menetapkan alokasi khusus bagi nelayan lokal di Laut Jawa untuk memanfaatkan pita frekuensi ini.
Co-Authors Ahmad Izzudin Akuwan Saleh Amang Sudarsono, Amang Anindya Dwi Putri Islamidina Ari Wijayanti Aries Pratiarso Bima Sena Bayu Dewantara Bustamir Arif Denny Setiawan Dinda Ayu Oktaviasari Hani'ah Mahmudah Hari Wahjuningrat Suparno Hary Octavianto Ida Anisah Karimatun Nisa Linda Indrayanti Mike Yuliana Mike Yuliana Mirza Ardiana Moch. Zen Samsono Hadi Moga Kurniajaya Mohamad Ridwan Muhammad Kholid Saifulloh Nihayatus Sa’adah Nur Adi Siswandari Okkie Puspitorini Paramita Eka Wahyu Lestari Prima Kristalina Rena Widyaningtyas Rini Satiti Thariqo Falsafah Tri Budi Santoso Tri Budi Santoso Tri Budi Santoso Tribudi Santoso Wirawan Wirawan Yulistia Khoirotul Aini Zulmi Zakariyah Zulmi Zakariyah