Recent content by Serge Smirnoff

  1. S

    Alternative method for measuring distortion

    Exactly, adding randomness decreases information, not increases it.
  2. S

    Alternative method for measuring distortion

    If you add more noise the entropy will increase more; if you add a lot of noise the entropy will increase even more; at some high level of entropy the original signal will disappear completely. Entropy and information are reciprocal.
  3. S

    Alternative method for measuring distortion

    For sure, linearization is mathematical, but its use in audio is determined by psychoacoustics.
  4. S

    Alternative method for measuring distortion

    They are from CDs without change. As is.
  5. S

    Alternative method for measuring distortion

    For sure, and is not required in another ones.
  6. S

    Alternative method for measuring distortion

    Self-dither does not require linearization of quantizer. Whether the signal is self-dithered or not can not be determined by math, only by ear. So, the necessity of linearization is determined by ear, not by math.
  7. S

    Alternative method for measuring distortion

    ... and increases the quantization noise.
  8. S

    Alternative method for measuring distortion

    The information you are talking about is relevant only in the context of hearing. Linearization is not the main goal/necessity, it is just a means for achieving the main goal - to reduce the annoyance of granular noise of quantization.
  9. S

    Alternative method for measuring distortion

    It is just a thought experiment helping to understand the difference between engineering/math/syntactic and semantic levels of audio information.
  10. S

    Alternative method for measuring distortion

    In various fields of application dither can benefit to various purposes; I'm talking about benefits of dither in audio, where such benefits determined by psychoacoustics.
  11. S

    Alternative method for measuring distortion

    yes, this is another area where dithering is beneficial, and also those benefits are due to features of human perception.
  12. S

    Alternative method for measuring distortion

    No doubt, it is beneficial for hearing, not for math.
  13. S

    Alternative method for measuring distortion

    I would add - the loss of information, which is important for hearing. In other areas such information can be unimportant.
  14. S

    Alternative method for measuring distortion

    At this stage/level of the discussion such “general” arguments are not enough. Please, elaborate - what exact premise you mean, why is it incorrect and provide the correct one. Here I will show how linearizion of quantizer by means of dithering increase resulting quantization error. It is easy...
  15. S

    Alternative method for measuring distortion

    Linearization of quantizer by dithering results in increase of quantization error (SQNR). We need some reason for such increase. The reason is in psychoacoustics - increased error is less audible and more pleasant for hearing.
Top Bottom