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Analyze audio using Fast Fourier Transform
... be used to get the frequency content of the audio. The FFT is defined for complex valued input functions, so the coefficients you get out will be imaginary numbers even though your input is all real values. In order to get the amount of power in each frequency, you need to calculate the magnitude o...
Realistic usage of the C99 'restrict' keyword?
...es the potential for pointer aliasing, enabling better optimization by the compiler.
For instance, suppose I have a machine with specialized instructions that can multiply vectors of numbers in memory, and I have the following code:
void MultiplyArrays(int* dest, int* src1, int* src2, int n)
{
...
How do I measure request and response times at once using cURL?
...e a request:
curl -w "@curl-format.txt" -o /dev/null -s "http://wordpress.com/"
Or on Windows, it's...
curl -w "@curl-format.txt" -o NUL -s "http://wordpress.com/"
What this does:
-w "@curl-format.txt" tells cURL to use our format file
-o /dev/null redirects the output of the request to /...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...ta types is to abstract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
...
Clear Text Selection with JavaScript
...ratchpad plugin. Basically it works! Thanks a lot!
– Combine
Jun 19 '17 at 9:01
1
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how to check redis instance version?
...running version though. I had upgraded a server to 3.2.8 via yum, and this command showed the new version, but the server needed to be restarted manually to launch the new version, whereas INFO correctly reported the old version.
– X-Cubed
Apr 13 '17 at 3:08
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Proper usage of Optional.ifPresent()
...ument. You're passing it an expression whose type is void. So that doesn't compile.
A Consumer is intended to be implemented as a lambda expression:
Optional<User> user = ...
user.ifPresent(theUser -> doSomethingWithUser(theUser));
Or even simpler, using a method reference:
Optional&l...
Why does Unicorn need to be deployed together with Nginx?
...y we are using NGinx or Apache those can process the only static contents, combinely with the passenger or unicorn or mod_php ?
– loganathan
Jan 5 '12 at 9:20
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Using NumberPicker Widget with Strings
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How do I terminate a thread in C++11?
...eed to terminate the thread correctly, or make it respond to a "terminate" command. I am interested in terminating the thread forcefully using pure C++11.
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