remaster
v. B2 Upper Intermediate re·mas·ter
v. to improve the sound or picture quality of an old recording or movie using modern technology.
v. to process an existing audio or video recording using modern equipment and techniques to enhance its fidelity or clarity. Often involves adjusting levels, reducing noise, or correcting color balance.
The band plans to remaster their first album for a high-quality vinyl release.
After discovering the original film negatives, the studio decided to remaster the classic movie to meet modern 4K standards.
While the original recording was technically proficient for its era, the digital remastering process revealed subtle details in the bassline and vocal harmonies that had been lost to analog tape degradation.