The screen itself can’t add hiss or warble, but it can present them with perfect fidelity. If you digitise the tape and then render the waveform pixel‑by‑pixel, you’ll see the faint noise spikes as subtle vertical jitter and the warble as a low‑frequency tilt. A high‑resolution panel will show those variations without aliasing, so you can analyse them in real time. If you want to emphasise nostalgia, overlay a colour‑graded frame or a vintage LCD‑style border, and maybe use a slow‑moving colour map that follows the waveform amplitude—this visual cue makes the analogue imperfections feel like a living museum. The key is to keep the audio path independent of the display: the monitor only shows the data, the speakers deliver the sound. With meticulous calibration and a clean visual layer, the old hiss becomes a deliberate, measurable artefact rather than an unwanted glitch.