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How do I obtain the frequencies of each value in an FFT?
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So if your sample rate, Fs is say 44.1 kHz and your FFT size, N is 1024, then the FFT output bins are at:
0: 0 * 44100 / 1024 = 0.0 Hz
1: 1 * 44100 / 1024 = 43.1 Hz
2: 2 * 44100 / 1024 = 86.1 Hz
3: 3 * 44100 / 1024 = 129.2 Hz
4: ...
5: ...
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511: 511 * 44100...
How to fix error “Updating Maven Project”. Unsupported IClasspathEntry kind=4?
...pse.org/m2e/m2e-downloads.html
If you can't use m2e 1.5.0 for any reason, then :
Disable the maven nature for the project (via the right-click menu)
Run mvn eclipse:clean (while your project is open in STS/eclipse). Depending on the timing, you might need to do a refresh or two on the project be...
UnicodeDecodeError when reading CSV file in Pandas with Python
... for me encoding was ANSI. To figure it out, I opened the csv in notepad then click save as, there it shows the encoding in beside the save button.
– Vaibhav Vishal
Dec 17 '18 at 12:11
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What is the difference between Strategy design pattern and State design pattern?
...erce application, if extra discount needs to be applied on festive season, then it is state design pattern. The actual discount rate logic can be applied with strategy design pattern, if there are more than one way to arrive at that number.
– Bharathkumar V
Oct...
Best architectural approaches for building iOS networking applications (REST clients)
...st and response serializers, http headers and other network-related stuff. Then I logically divide all the API requests into subservices or, more correctly, microservices: UserSerivces, CommonServices, SecurityServices, FriendsServices and so on, accordingly to business logic they implement. Each of...
Max length for client ip address [duplicate]
...bers between the periods in an IP address are 0-255, i.e., one byte). But then you would have to translate going in and out of the DB and that's messy.
IPv6 addresses are 128 bits (as opposed to 32 bits of IPv4 addresses). They are usually written as 8 groups of 4 hex digits separated by colons: ...
Detect IF hovering over element with jQuery
...er and turn the jQuery Mobile 1.4.4 box on and you can see it doesn't work then... I can confirm its the same with 1.4.2 aswell :(
– David O'Sullivan
Dec 16 '14 at 18:07
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How to use pull to refresh in Swift?
...is way was preferred over the accepted answer for the reason that there is then no layout bugs (at least for me using swift 2+)
– Ryan Walton
Jul 23 '16 at 20:05
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Why do access tokens expire?
...or a short time and must be refreshed.
The refresh token requires client authentication which makes it stronger. Unlike the above access tokens, it is usually implemented with a database lookup.
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How to install MySQLdb (Python data access library to MySQL) on Mac OS X?
... installed it (instructions on this fiddly task are available on SO here), then download and install the 32 bit version (package here)
There are numerous step-by-steps on how to build and install the MySQLdb libraries. They often have subtle differences. This seemed the most popular to me, and pr...