I am attempting to extract pitch data from an audio stream.From what I can see, it looks as though FFT is the best algorithm to use.
I have a file reader that reads n bytes from a file and returns a string of chars representing that (binary) data. I want to read up n bytes into a numpy a开发者_C百科rray of numbers and run a FFT on
I am new to FFTs and signal processing, so hopefully this question makes sense and/or isn\'t stupid. I would like to perform spectrum analysis on a live audio signal. My goal is to find a good tradeo
I\'m using Matlab to take FFTs of signals, and I\'m getting stuck on the normalization. Specifically, how to normalize the spectrum into units of dBm. I know that 0.316228 is the correct normalization
I would like to compare to WAV audio files using an FFT.What open source libraries and / or sample code exis开发者_运维问答t for performing such an operation?Apple\'s aurioTouch sample app (available
I want to comparetwo audio files(voice recording) and find whether they are identical or not (to some extent).I have come up with FFT(OouraFFT).I have integrated code and gave myaudio file as inputand
Here is the scenario, I have a set of input values say 2000, and the corresponding out put values, the sampling rate was 2000 samples/sec, and a sinusoidal wave 开发者_StackOverflowof 50hz was used,
Here is the scenario: using a spectrum analyzer i have the input values and the output values. the number of samples is 32000 and the sampling rate is 2000 samples/sec, and the input is a sine wave of
I\'ve got a FFT magnitude spectrum and I开发者_开发知识库 want to create a filter from it that selectively passes periodic noise sources (e.g. sinewave spurs) and zero\'s out the frequency bins associ
I want to invert the Fourier transform of an image in MATLAB, but the result is not the original image (as it should be). There is obvious开发者_Go百科ly some implementation detail that I don\'t know
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