Soru

Early sound recordings preserved on wax cylinders and lacquer discs present severe conservation dilemmas: mechanical playback using a physical stylus inevitably degrades the delicate grooved substrate with each pass, while warped, broken, or fungal-damaged media cannot withstand mechanical contact at all. To circumvent physical wear, preservationists developed non-contact optical scanning technologies that reconstruct audio by generating high-resolution, three-dimensional topographic maps of groove depth and lateral undulations. Unlike traditional phonographic reproduction, which captures audio signals strictly in real time, optical capture can proceed asynchronously at variable scanning speeds without distorting the pitch or temporal structure of the final reconstructed audio, as software algorithms translate spatial measurements into audio waveforms post-capture. Furthermore, because dust, micro-fractures, and surface debris produce distinct geometrical anomalies that deviate from the smooth sinusoidal curves of recorded sound waves, digital signal processing routines can mathematically filter these surface aberrations out of the topographic model prior to audio synthesis, yielding clean sound even from physically fractured media.

Based on the passage, which of the following statements are logically supported? (Select all that apply.)