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      Analisis dan Sintesis Bunyi Gitar yang Dipetik dengan Teknik Petikan Hammer-on

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      Date
      2023
      Author
      Koharudin
      Husin, Abd. Djamil
      Pramudito, Sidikrubadi
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      Abstract
      Penelitian ini bertujuan untuk menganalisis dan mensintesis sinyal periodik yang berasal dari petikan senar gitar yang dipetik dengan teknik hammeron. Penelitian ini memiliki tiga tahap yakni tahap pengambilan data, tahap analisis, dan tahap sintesis. Senar gitar dipetik dengan tegangan 2,5 N dan direkam dengan menggunakan sensor bunyi yang terhubung dengan software PASCO Capstone. Data yang digunakan memiliki dua variasi yakni sinyal bunyi petikan hammer-on dengan kenaikan setengah nada dan kenaikan satu nada. Analisis data dilakukan dengan menggunakan software MATLAB untuk memperoleh grafik simpangan sebagai fungsi frekuensi, nilai koefisien redaman, dan spektrum frekuensi. Hasil penelitian menunjukkan pada teknik hammer-on, amplitudo nada setelah hammer-on mengalami penurunan secara drastis seiring mengecilnya massa per satuan panjang senar. Nada awal sebelum hammer-on akan muncul pada nada setelah hammer-on dengan amplitudo yang semakin rendah seiring dengan bertambahnya massa per satuan panjang. Sintesis dilakukan dengan menggabungkan masing-masing nada dan mengatur selang waktu serta amplitudonya sesuai dengan data literatur
       
      This study aims to analyze and synthesize periodic signals from guitar strings with the hammer-on technique. This research has three stages, the data collection stage, the analysis stage, and the synthesis stage. The guitar strings are plucked with a tension 2.5 N and recorded using a sound sensor connected to the PASCO Capstone software. The data used has two variations, the hammer-on sound signal with a half-tone increase and one-tone increase. Analyze data was performed using MATLAB software to obtain a graph of the deviation as a function of time, the value of the damping coefficient, and the frequency spectrum. The results showed that in the hammer-on technique, the tone amplitude after hammer-on decreased drastically as the mass per unit string length decreased. The initial note before hammer-on will appear over the note after hammer-on with a lower amplitude as the mass per unit length increases. Synthesis is done by combining each tone and adjusting the time interval and amplitude according to the literature data.
       
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      http://repository.ipb.ac.id/handle/123456789/116232
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      • UT - Physics [901]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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