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Analyze audio using Fast Fourier Transform
...ly spaced frequencies, starting at 0. Because your sampling frequency is 44100 samples / sec. and the number of points in your FFT is 256, your frequency spacing is 44100 / 256 = 172 Hz (approximately)
The first coefficient in your array will be the 0 frequency coefficient. That is basically the av...
Running a cron job at 2:30 AM everyday
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541
crontab -e
add:
30 2 * * * /your/command
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MongoDB Aggregation: How to get total records count?
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13 Answers
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Signed to unsigned conversion in C - is it always safe?
...swer
Your i will be converted to an unsigned integer by adding UINT_MAX + 1, then the addition will be carried out with the unsigned values, resulting in a large result (depending on the values of u and i).
Long Answer
According to the C99 Standard:
6.3.1.8 Usual arithmetic conversions
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How I can I lazily read multiple JSON values from a file/stream in Python?
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What is the correct way of using C++11's range-based for?
What is the correct way of using C++11's range-based for ?
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How can I implode an array while skipping empty array items?
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212
You can use array_filter():
If no callback is supplied, all entries of input equal to FALSE...
Does a break statement break from a switch/select?
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201
Break statements, The Go Programming Language Specification.
A "break" statement termina...
How can I convert this foreach code to Parallel.ForEach?
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string[] lines = File.ReadAllLines(txtProxyListPath.Text);
List<string> list_lines = new...
How to correctly close a feature branch in Mercurial?
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One way is to just leave merged feature branches open (and inactive):
$ hg up default
$ hg mer...