Lena's face in sound

http://photosounder.com

In this video we use Photosounder to 'embed' an image into sound, and then use the program Spectrogram 16 to reveal the image as it is contained in that sound.

To reproduce this, set the Frequency scale knob to LINEAR (1.00), choose your frequency range and tweak the Time resolution knob to choose the duration of the resulting sound. Note that the largest you make the sound duration be the nicer and less noisy the resulting image will be. You can then use any other spectrograph program to reveal the image.