Of course, itвЂ™s not incised sufficiently in depth to guide a stylus on a turntable. If we want to listen to a waveform inscribed two-dimensionally on a piece of paper, the challenge we face is the practical one of transferring that information into a playable form. Barring issues of resolution, thereвЂ™s no more information in a 78 rpm record or a mono LP than there would be in a picture of the same waveform printed on a piece of paper. But the information is all there in the two-dimensional path of the waveform itself. Because the waveform is incised in depth, it can physically guide a stylus back and forth through its undulations as the disc revolves, which gives us a convenient means of transducing them into an audible sound wave. After all, if you look closely at the groove of a 78 rpm record or a mono LP, youвЂ™ll see that itвЂ™s nothing more than an incised waveform coiled into a long spiral. The technique IвЂ™ll be describing here вЂњdefies belief,вЂќ according to Gizmodo.Д«ut really thereвЂ™s nothing magical or even particularly surprising about the fact that we can turn pictures of audio waveforms into sound. Because of that, the claim that we can play back pictures of sound waves (which seem to be very different things from вЂњrecordsвЂќ) is often met with incredulity. For many people, the reproduction of recorded sounds takes place in a conceptual black box: sound goes in, and sound comes out, and itвЂ™s stored up in things called вЂњrecordsвЂќ in between, but the process itself is all very mysterious.

Listen to wav files on iphone