SawaalBoxसवाल बॉक्स

What does the term ‘Dolby B’, or ‘Dolby C’ printed on tape recorders and other sound systems refer to?

  1. (a)Frequency modulated system
  2. (b)Amplitude Modulated system
  3. (c)Noise reduction circuit
  4. (d)Both DC and AC power can be used
Show answerHide answer

Official answer(c) Noise reduction circuit