Lecture 19: Aliasing Demonstration With Music
published: May 21, 2010, recorded: September 2007, views: 2652
released under terms of: Creative Commons Attribution Non-Commercial (CC-BY-NC)
Report a problem or upload filesIf you have found a problem with this lecture or would like to send us extra material, articles, exercises, etc., please use our ticket system to describe your request and upload the data.
Enter your e-mail into the 'Cc' field, and we will keep you updated with your request's status.
So according to the way we do things then, the bandwidth or the spectrum of – a slice of spectrum of music would go roughly up to say 20,000 hertz and then down to minus 20,000, so the frequency would be – and beyond that it’s essentially zero. At least as far as you’re concerned it’s zero. You can’t hear anything. So if that’s a picture of the spectrum of a slice of music, then it’s between minus 20,000 and 20,000, so the way we write things, that would be P over 2. The bandwidth is 20,000, so P is about 40,000, which means that if you wanna sample and reconstruct music, you should do it roughly at a rate of 40,000 hertz. ...
See the whole transcript at The Fourier Transform and its Applications - Lecture 19
Link this pageWould you like to put a link to this lecture on your homepage?
Go ahead! Copy the HTML snippet !