Audio Watermarking Stereo Dengan Sinkronisasi Berbasis Hybrid SWT-FFT-SVD Dan QIM

Authors

  • Rifdah Fausiah Ashari Fakultas Teknik Elektro, Universitas Telkom, Bandung
  • Gelar Budiman Fakultas Teknik Elektro, Universitas Telkom, Bandung
  • R Yunendah Nur Fuadah Fakultas Teknik Elektro, Universitas Telkom, Bandung

Keywords:

Audio Watermarking stereo, Stationary Wavelet Transform (SWT), Fast Fourier Transform (FFT), Singular Value Decomposition (SVD), Sinkronisasi, Quantization Index Modulation (QIM)

Abstract

Audio watermarking stereo merupakan suatu metode penyisipan data rahasia (watermark) ke dalam file audio stereo yang terdiri dari 2 channel. Proses watermarking akan dilakukan secara dual method yakni pada host audio dan pada data watermark. Pada makalah ini, akan dirancang suatu sistem audio watermarking stereo menggunakan metode SWT-FFT-SVD dan QIM dengan sinkronisasi. Pertama, sinyal host audio didekomposisi kedalam beberapa sub-band menggunakan metode SWT. Keluaran dari proses SWT akan ditransformasikan menggunakan metode FFT untuk mengubah sinyal dalam domain waktu ke domain frekuensi. Selanjutnya, sub-band yang telah dipilih didekomposisi kedalam bentuk matriks menggunakan metode SVD. Penambahan bit-bit sinkronisasi pada data watermark dilakukan sebelum proses penyisipan (embedding). Proses penyisipan data watermark ke dalam host audio dilakukan menggunakan metode QIM. Hasil yag diharapakan dalam makalah ini didapatkan tingkat imperceptibility, ketahanan sinyal (robustness) terhadap berbagai serangan, dan kapasitas payload watermark yang baik.

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Published

2018-01-18

How to Cite

[1]
R. F. Ashari, G. Budiman, and R. Y. N. Fuadah, “Audio Watermarking Stereo Dengan Sinkronisasi Berbasis Hybrid SWT-FFT-SVD Dan QIM”, SENTER, pp. 132-142, Jan. 2018.

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