I have an audio file and I am iterating through the file and taking 512 samples at each step and then passing them through an FFT. I have the data out as a block 514 floats long (Using IPP's ippsFFTFwd_RToCCS_32f_I) with real and imaginary components interleaved. My problem is what do I do with these complex numbers once i have them? ...
Hi For my current project in C++ / Qt I need a library (LGPL is preferred) which can calculate a spectrogram from a signal ( basically an array of doubles ). I already use Qwt for the GUI part. Any suggestions? Thanks. ...
using MATLAB, we have converted image into audio (.wav format). Also this audio file is converted into spectrogram image. Now we are trying to convert this spectrogram into an original input image ...
I have created a process similar to Shazam that creates a Spectrogram of a given sound clip. I am trying to figure out a way in which to store this data into a database so that I can run comparisons on it. (I dont need actual code, just conceptual help on the process). For those unfamiliar with a spectrogram, its a graph of time on the ...
In Matlabs recent versions, the specgram function is being replaced by spectrogram, and the documentation states: Note. To obtain the same results for the removed specgram function, specify a 'Hann' window of length 256. Unfortunately, that doesn't seem to work for me, if I use spectrogram(signal,hann(256)), the result is different...
Hi I want to develop a tool that does the following things. take in a live voice recording produce a real time spectrogram show the time-domain signal output few values extracted from the spectral analysis All of these have to be kept updated in a window as the voice is recorded. I have worked with numpy. But I'm completely new to...