A sound recording can be converted to an image, to try and spot any recognizable shapes (pareidolias). I wrote a simple program for this. Since my coding skills are limited, a little effort is required on the user side. The file must be in a certain format in order for the program to work.
To convert the sound file to the right format, you will need an audio editor such as the free and open source Audacity. You can get a copy here.
Download
Download the Windows executable and the Python source code from GitHub at the following link.
An example of what you can expect
The image below is an example of what you can expect to get by processing a recorded musical performance through the program.
