Top "Frequency" questions

The rate at which a thing occurs or is found.

Android audio FFT to retrieve specific frequency magnitude using audiorecord

I am currently trying to implement some code using Android to detect when a number of specific audio frequency ranges …

java android fft frequency audiorecord
Graphing the pitch (frequency) of a sound

I want to plot the pitch of a sound into a graph. Currently I can plot the amplitude. The graph …

java audio fft frequency pitch
Sort the array in decreasing order of frequency of occurrence of elements in C

Question is to sort the array according to the frequency of the elements. For example, if the input array is { 2, 3, 2, 4, 5, 12, 2, 3, 3, 3, 12 } …

c arrays sorting frequency
Where is the documentation on Pandas 'Freq' tags?

I am new to Pandas, and am trying to use date_range. I came across all kinds of good things …

python pandas documentation dataframe frequency
Setting a relative frequency in a matplotlib histogram

I have data as a list of floats and I want to plot it as a histogram. Hist() function does …

python matplotlib histogram frequency
Sort list by frequency

Is there any way in Python, wherein I can sort a list by its frequency? For example, [1,2,3,4,3,3,3,6,7,1,1,9,3,2] the above list …

python list indexing frequency
Calculating Entropy

I've tried for several hours to calculate the Entropy and I know I'm missing something. Hopefully someone here can give …

r frequency entropy
function that finds the cutoff frequency for low pass filter (in matlab)

I want to find the cutoff frequency for a lot of low pass filters. Therefor I want a function that …

matlab frequency lowpass-filter
Detecting the fundamental frequency

There's this tech-festival in IIT-Bombay, India, where they're having an event called "Artbots" where we're supposed to design artbots with …

signal-processing detect frequency pitch-tracking
Get frequency wav audio using FFT and Complex class

It's been asked a lot, but I still stuck about implement FFT class on Android I need to process my …

android audio fft frequency