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Analyze audio using Fast Fourier Transform

...you need to calculate the square root of the sum of the square of its real and imaginary components. That is, if your coefficient is a + b*j, then its magnitude is sqrt(a^2 + b^2). Once you have calculated the magnitude of each FFT coefficient, you need to figure out which audio frequency each FFT ...
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Check time difference in Javascript

...objects to get their difference: // use a constant date (e.g. 2000-01-01) and the desired time to initialize two dates var date1 = new Date(2000, 0, 1, 9, 0); // 9:00 AM var date2 = new Date(2000, 0, 1, 17, 0); // 5:00 PM // the following is to handle cases where the times are on the opposite si...
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Javascript and regex: split string and keep the separator

... I don't understand why everybody is using /g – Sarsaparilla Jan 11 '17 at 18:22 1 ...
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How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]

I have a = [1,2,3,4] and I want d = {1:0, 2:0, 3:0, 4:0} 5 Answers 5 ...
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How to initialize a two-dimensional array in Python?

I'm beginning python and I'm trying to use a two-dimensional list, that I initially fill up with the same variable in every place. I came up with this: ...
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How to add a new audio (not mixing) into a video using ffmpeg?

I used a command like: 7 Answers 7 ...
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Calculate last day of month in JavaScript

...efox 2.0.0.17: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Firefox 3.0.3: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Google Chrome 0.2.149.30: Thu Jan 31 2008 00:00:00 GMT-0600 (Canada Central Standard Time) Safari for Windows 3.1.2: Thu ...
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Fancybox doesn't work with jQuery v1.9.0 [ f.browser is undefined / Cannot read property 'msie' ]

...ox is patched. UPDATE (Jan 16, 2013): Fancybox v2.1.4 has been released and now it works fine with jQuery v1.9.0. For fancybox v1.3.4- you still need to rollback to jQuery v1.8.3 or apply the migration script as pointed out by @Manu's answer. UPDATE (Jan 17, 2013): Workaround for users of Fa...
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glVertexAttribPointer clarification

Just want to make sure I understand this correctly (I'd ask on SO Chat, but it's dead in there!): 2 Answers ...
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Find the PID of a process that uses a port on Windows

... Just open a command shell and type (saying your port is 123456): netstat -a -n -o | find "123456" You will see everything you need. The headers are: Proto Local Address Foreign Address State PID TCP 0.0.0...