HW3 - Determine and illustrate the partition levels and...

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Polytechnic University, Dept. Electrical and Computer Engineering EE3414 Multimedia Communication System I Spring 2006, Yao Wang ___________________________________________________________________________________ Homework 3 (Quantization) Reading Assignment: Yao Wang, Multimedia Compression: Speech and Audio, Sec. 1-2.1. Part of EL514 Lab Manual. Written Assignment 1. Determine and illustrate the partition levels and reconstruction levels of a uniform quantizer in the range of (-1,1) with 4 levels. 2. For the sequence {0.2,-0.3,-0.7,0.8,…}, a. Determine the quantized sequence using the uniform quantizer of Prob. 1. Also determine the mean square quantization error and SNR. b. Determine the binary stream corresponding to the quantized sequence. 3.
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Unformatted text preview: Determine and illustrate the partition levels and reconstruction levels of a -law quantizer in the range of (-1,1) with 4 levels, =16. Hint: you should use the indirect method: i.e., apply the inverse mu-law transform on the partition and reconstruction levels you determined for the uniform quantizer in Prob. 1, to yield the partition and reconstruction levels for the mu-law quantizer. 4. For the same sequence as in Problem 2, a. Determine the quantized sequence using the -law quantizer of Prob. 3. Also determine the mean square quantization error and SNR. b. For this sequence, which method (uniform vs. -law) gives more accurate result? c. Determine the binary stream corresponding to the quantized sequence....
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