PhonoPaper

PhonoPaper is an application designed to read sound tags, essentially two-dimensional audio codes, functioning similarly to a QR code. The program can play these tags in real time using a camera, working from any surface such as paper or a monitor screen, and it remains effective even with distortions like a poor camera or insufficient lighting. It also allows users to create their own tags with a duration of up to 10 seconds. No internet connection is required to use the app, as the principle of converting an image into sound is analog, meaning the "sound image" is all that is needed.

Once a code enters the camera's view, the program automatically begins scanning the audio. Users have full control over the playback process, including the ability to play in any direction and at any speed. The code can be drawn by hand, printed, or found online. Examples of how the application can be used include thematic music clips on business cards, tags on discs, records, and cassettes, voice prompts in books and textbooks, greeting cards with paper sound messages, and captions on the back of photographs.