This project aims to generate some audio visuals starting from a simple text file. It can be used for poems or whatever text you choose. The example here uses a passage from göthes faust.
The principle is simple: loop trough all words in the text, count the number of letters and generate sin tones based on that; then concatenate the tones to one audio file. To give some more depth two signals with slightly offset pitches are added in the stereo field and hall is added. Finally a visual displaying the played waveform is generated. The hole code is a shell script using ffmpeg only.
hall by ipulse response ffmpeg