Perancangan Audio Watermarking Berbasis DWT-DCT-SVD-CPT1 Menggunakan Teknik Hybrid SMM dan QIM Design

  • Arlina Anwar Teknik Telekomunikasi Fakultas Teknik Elektro, Universitas Telkom
  • Gelar Budiman Teknik Telekomunikasi Fakultas Teknik Elektro, Universitas Telkom
  • Nur Ibrahim Teknik Telekomunikasi Fakultas Teknik Elektro, Universitas Telkom
Keywords: Audio Watermarking, DWT, DCT, SVD, CPT, QIM, SMM

Abstract

Audio watermarking merupakan salah satu teknik penyisipan suatu data kedalam suatu sinyal audio untuk menghindari penyalahgunaan atau modifikasi informasi secara ilegal. Makalah ini menjelaskan perancangan audio watermarking berbasis Discrete Wavelet Transform (DWT), Discrete Cosinus Transform (DCT), Singular Value Decomposition (SVD), serta Cartesian Polat Transform (CPT) menggunakan teknik hybrid Quantization Index Modulation (QIM) dan Statistical Mean Manipulation (SMM). Transformasi DWT digunakan untuk memisahkan sinyal host audio berdasarkan subband frekuensinya, kemudian sinyal tersebut diubah menjadi domain frekuensi menggunakan DCT. Selanjutnya, SVD akan mendekomposisikan sinyal host audio berdasarkan amplitudanya, kemudian keluaran SVD ditransformasikan ke koordinat polar menggunakan CPT. Setelah itu, penyisipan watermark dilakukan menggunakan QIM pada subband frekuensi tengah dan SMM pada subband frekuensi rendah. Setelah seluruh proses dilakukan, audio watermarking menunjukan hasil rata rata dari Single-to-Noise Ratio (SNR) 29.51658, Objective Different Grade (ODG) -3.436, Bit Error Rate (BER) 0.09, Capacity 5.3665, dan Mean Opinion Score (MOS) > 4.

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Published
2020-03-20
How to Cite
[1]
A. Anwar, G. Budiman, and N. Ibrahim, “Perancangan Audio Watermarking Berbasis DWT-DCT-SVD-CPT1 Menggunakan Teknik Hybrid SMM dan QIM Design”, SENTER, pp. 101-110, Mar. 2020.
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Articles
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