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Track Displays in DAW Software: Beyond Waveform Views

For decades, digital audio workstation software has displayed the content of audio tracks through bare waveforms. We argue that the same real estate on the computer screen can be used for far more expressive and goal-oriented visualizations. Starting from a range of requirements and use cases, this paper discusses existing techniques from such fields as music visualization and music notation. It presents a number of novel techniques, aimed at better fulfilling the needs of the human operator. To this end, the paper draws upon methods from signal processing as well as computer graphics.