QML Qt Spectograph for Audio
-
Hi,
what is the best way to make a spectograph for real time audio showing frequency and time domain(FFT)?
I am trying to use a 2D Surface3D with a datmodel but i want to show real time audio.
I dont know if i use QSGGeometryNode and draw points with colour would be better or if it will make it really slow.Audio Spectograph would look like this: https://www.youtube.com/watch?v=IgrskJBr8Fw
How should i approach this in QML?
-
Hi,
what is the best way to make a spectograph for real time audio showing frequency and time domain(FFT)?
I am trying to use a 2D Surface3D with a datmodel but i want to show real time audio.
I dont know if i use QSGGeometryNode and draw points with colour would be better or if it will make it really slow.Audio Spectograph would look like this: https://www.youtube.com/watch?v=IgrskJBr8Fw
How should i approach this in QML?
@michaelL
maybe a combination of the Spectrum (FFT) and Qt Quick 2 Spectrogram examples will help you -
@raven-worx I am trying to work with both projects but it is a lot of work. I am trying first to make spectrum example to get and play realtime audio, not recording and play back. Than i f that works i will try to get FFT values and update the Model Data from Qt Quick Spectrogram.
