3

This is the end of AVICII's The Nights (YouTube) viewed in Audacity:

enter image description here

Question: Is there a particular purpose for keeping the wave out of the center?

I guess it does not change the sound (or at least not in a way that humans can hear), but maybe there are merits I have not thought about? Or maybe it is just for the visual effect of the diaphragms coming back to position after the music stops, for instance? Or to prevent people/programs from cutting the track as soon as the music stops, maybe?

  • 2
    This is an interesting question! – Brahadeesh Apr 7 at 10:52
  • It's not clear how did you get a youtube track playing in audacity... is the method reliable to begin with? Does the recording method do the same for different tracks? But the main question is why would it necessarily be centred? A lot of classic waveforms, especially when you work with harmonization are nor centred. – Bebs Apr 9 at 10:12
  • I don't know the reason for this perticular track, but I used to work on some audio effects that consisted on "un-centerize" a waveform in order to create harmonics, for example, take a sine wave and replace negative by zero. – Bebs Apr 9 at 10:21
  • @Bebs: Did you left the waveform uncenterized on purpose? Or did you just left it like this because centering it would waste a few minutes of work for no noticeable benefit? – Nicolas Raoul Apr 9 at 12:18
  • In my case, I didn't think about it back then... but to center the signal, it is needed to know its mean. In real time applications, the mean can vary so re-centering the signal (i.e. removing its mean which is not constant) would require processing costs and could actually add an unwanted audible effect. – Bebs Apr 9 at 12:45

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.