Quantization

Faster way to find the quantization level of a sample

Faster way to find the quantization level of a sample
  1. What are the common methods of quantization?
  2. What is the number of quantization levels?
  3. How quantization levels are chosen in PCM?

What are the common methods of quantization?

There are two types of Quantization - Uniform Quantization and Non-uniform Quantization. The type of quantization in which the quantization levels are uniformly spaced is termed as a Uniform Quantization.

What is the number of quantization levels?

Though any number of quantization levels is possible, common word-lengths are 8-bit (256 levels), 16-bit (65,536 levels) and 24-bit (16.8 million levels).

How quantization levels are chosen in PCM?

Quantization by amplitude means that according to the amplitude of sample one quantization segment is chosen (every quantization segment contains an interval of amplitudes) and then record segments code word. To conclude, PCM encoded signal is nothing more than stream of bits.

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