On: Show HN: Small C Program to Convert Photos to Audi...

[wrigby]

I would expect to see the frequency response of the speaker + mic combination show up as darker and lighter horizontal bands in the image (since these spectrograms are plotted with frequency on the y axis). It might look really cool!

Edit: depending on the time alignment / phase response of the speakers, you might see the low frequency parts of the image get distorted to the right.

[kylophone → wrigby]

Give it a try! The output file contains both very low frequencies and also frequencies up to Nyquist, in this case 24kHz.

[wrigby → kylophone]

I'll try to give it a shot! What are you using to generate the spectrograms?

[kylophone → wrigby]

  sox -c 1 -r 48000 -b 32 -e float -t raw out.raw -n spectrogram

[_lce0 → kylophone]

please post your results!

science is fun