Reconstructing Audio from Spectrogram

I have followed https://la.mathworks.com/help/signal/ref/stftmag2sig.html to construct spectrogram from audio. Now I want the spectrogram to be saved, edited and then recreate the audio from it. Attaching a sample spectrogram from which I want to generate the audio signal. Any help would be apprecaited. Thank you!

[Fareed Jamali]

I have exported the above attached image as untitled.png and now I want to reconstruct audio from the image. All I know is that I have to read image through imread() but not sure how to extract useful information to reconstruct audio.

Answer 1

[Meg Noah]

istfit then wavwrite?

[Fareed Jamali]

The image (spectrogram) needs to be imported first. Like imread('untitled.png'). There has to be something that should convert the image back to audio.