Fast Discrete Cosine Transform Sebagai Pengolahan Awal Isyarat pada Kompresi Isyarat Tutur Telepon  

Oleh:

Wijaya, I Gede Pasek Suta

Jenis: Article from Journal - ilmiah nasional - tidak terakreditasi DIKTI
Dalam koleksi: Gematek: Jurnal Teknik Komputer vol. 7 no. 2 (Sep. 2005), page 112.
Topik: TRANSFORMASI; fast discrete cosine transform; compression; signal; digital communication

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: GG6.2 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Data transmission digital communication system technique needs high bit - rate. Compression system decreases bit - rate. Fast Discrete Cosine Transform (FDCT) as pre - processing element on telephone speech compression. Parameters used to determine compression system : Signal To Noise Radio (SNR), Mean Square Error (MSE), time process, and compression ratio by static Huffman algorithm. FDCT shows small MSE, high SNR (20 dB), small time process (6.96 second for 325 kB data), and high compression ratio (65 %). The threshold value 2, 3, and 4 and quantification factors 20, 30, and 40 were best candidate for telephone speech compression with FDCT as pre - processing element.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali