Give any two characteristics of a code. Name the two types of adaptive quantization. - Compression Standard

Give any two characteristics of a code.

- A code should be decodable.

- The code words are shorter than the letters which occur less frequently, has code word letters that occur more frequently.

Name two types of quantization errors.

1. Granular error
2. Slope over load error.

Name the two types of adaptive quantization.

1. Forward Adaptive Quantization
2. Backward Adaptive Quantization.