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● ADPCM是一种常用的编码技术,其中“A”指的是 (28) ,“D”指的是 (29) ,编码的差分特性是指 (30) 。 

(28)

  • A. 量化      
  • B. 自适应      
  • C. 差分      
  • D. 调制    (29)
  • A. 量化      
  • B. 自适应      
  • C. 差分     
  • D. 调制    (30)
  • A. 对实际信号之间的差值进行量化编码
  • B. 对预测值信号之间的差值进行量化编码
  • C. 对实际信号值与预测值之差进行量化编码
  • D. 对当前信号测量值和下一个信号测量值之差进行量化编码
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