Top "Spectrum" questions

Units of a Fourier Transform (FFT) when doing Spectral Analysis of a Signal

My question has to do with the physical meaning of the results of doing a spectral analysis of a signal, …

math physics fft measurement spectrum

Analyze audio using Fast Fourier Transform

I am trying to create a graphical spectrum analyzer in python. I am currently reading 1024 bytes of a 16 bit dual …

python audio signal-processing fft spectrum

How to generate the audio spectrum using fft in C++?

I want to generate an audio spectrum (as seen in this video) of a mp3 audio file. Basically this problem …

c++ audio fft spectrum

How to develop a Spectrum Analyser from a realtime audio?

I am developing an app that get a source audio from mic in realtime, with no file storage. Basically, I …

android audio spectrum

iOS - Smooth Color Change Transition/Animation

I want to have a smooth color transition that goes across the entire spectrum (i.e. red, blue, green, yellow, …

ios colors transitions spectrum

Clojure/Java: Java libraries for spectrum analysis of sound?

I am looking for a library that can accept a chunk of audio data and return the average amplitude over …

java clojure audio fft spectrum

how to convert normalized frequency to actual frequency

suppose that we have following code function [ x ] = generate1(N,m,A3) f1 = 100; f2 = 200; T = 1./f1; t = (0:(N*T/m):(…

matlab signal-processing spectrum

MP3 bitrate detection through frequency spectrum analysis

Is there any program that detects the bitrate of an MP3? I'm not talking about the effective bitrate that the …

mp3 analysis detection bitrate spectrum

Why do I need to apply a window function to samples when building a power spectrum of an audio signal?

I have found for several times the following guidelines for getting the power spectrum of an audio signal: collect N …

audio signal-processing fft spectrum window-functions

Python amplitude spectrum plot

I have two lists of float values, one for time and other for voltage values taken from an oscilloscope (I …

python fft spectrum