Timeline for Beat detection and FFT
Current License: CC BY-SA 2.5
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 16, 2011 at 9:01 | history | edited | CeeJay | CC BY-SA 2.5 | deleted 12 characters in body; added 2 characters in body |
| Mar 15, 2011 at 21:48 | comment | added | CeeJay | The code I wrote is using the C library you linked, which already contains a "complex" structure. This makes the unwrapping I described in my question unnecessary (and the code reflects that) | |
| Mar 15, 2011 at 21:36 | history | edited | CeeJay | CC BY-SA 2.5 | added 1619 characters in body |
| Mar 15, 2011 at 20:36 | vote | accept | Quincy | ||
| Mar 15, 2011 at 20:34 | comment | added | Quincy | As a example if I have all 1024 samples from window 0-1024 and I got them as real values, so no complex part. and I want to calculate the energy in there on the frequency band 43Hz. How would I integrate it then ? (I only need the real part back, the postive part) If you could do it in some pseudocode I'll be in depth of you forever and then I may actually grasp the concept a bit :) | |
| Mar 15, 2011 at 11:39 | comment | added | CeeJay | Oh, I just took a look at the code you linked, it already gives you the results in "complex" form and even provides you with a function to compute the magnitude of a complex number. Then you would only have to compute the square of that magnitude for each element of the output vector, don't need to worry about sorting the results. | |
| Mar 15, 2011 at 11:33 | history | answered | CeeJay | CC BY-SA 2.5 |