A non-contact optical measurement technique that uses laser light to create interference patterns (speckles). These patterns change when the material surface moves, allowing you to measure micro-displacements and strains with extreme precision.

: ESPI is a non-contact inspection technique used in mechanical engineering to identify micro-cracks in structures, such as photovoltaic cells or metallic components. Precision Measurement

At the heart of the eSPi project is a commitment to the specific sonic artifacts of the original hardware. The software models the SP-1200's unique pitch-shifting algorithms and its famous "super coarse" 24PPQ swing, which provides the distinctive rhythmic "vibe" sought after by boom-bap producers. Recent updates have expanded these capabilities, introducing stereo output, adjustable bit rates from 12-bit down to 1-bit, and filters modeled after the classic SSM 2044 and S950 designs to further refine the lo-fi texture. 2. Workflow and Accessibility