Many moons ago I became quite obsessed with analyzing spectrograms on my computer.
I would load up audio files in Audacity and look at them to see how the audio "looked", as a function of how intense each frequency is over time.
You can even set a track to spectrogram while recording which allowed you to see the sound in real time.
Music also tends to be very beautiful in the spectrogram! And birdsong also. Sometimes I would see a bird first, and only afterwards notice it in my field of hearing.
I noticed while analyzing a podcast that I began to recognize common words like "you." I also noticed that I was able to easily distinguish between different people's voices.
I had to wonder if I were deaf, or if I become deaf, I would suddenly have a strong motivation to learn how to read these things. To develop some kind of device which would show them to me 24 hours a day.
I have not done this, but the project has remained in the back of my mind for over a decade.
Does anyone else know more about this? Does such a device exist?
I think that only some linguists learn how to read spectrograms. But it seems like something that might be extremely useful to any hearing impaired person?
Relating to the article, I think one could quickly learn to read them fluently (e.g. as subtitles, perhaps overlaid on real life), and of course you get the tonal information built in for free—that's what a spectrogram is!
You're on the fringe of an area which in academia is called Sensory Substitution. A simplification of which is experiencing one of the five senses using different sense organs than usual. Classic examples of this are video cameras which represent their image as a matrix of vibrations on the subjects skin or as a sound.
There was a guy who was able to recognize music just by looking at grooves of vinyl recording https://en.wikipedia.org/wiki/Arthur_Lintgen
I remember being able to recognize one song on vinyl.
It was a (telarc I think?) recording of the 1812 overture.
The grooves were wide where the canons went off, so that the needle could deflect enough to capture the dynamic range. You could see the waveform.
I think of "Surely You're Joking Mr. Feynman" where people could sniff like a bloodhound. Feynman would have people handle books, and he could tell which ones had been handled.
I think there are things that just trying would be successful more than you think.