Dolby NR

Dolby Noise Reduction (Dolby NR) is a technology used to reduce unwanted background noise in audio recordings and playback, especially in cassette tapes and early audio devices. It works by dynamically adjusting audio signals during recording and playback, boosting quiet sounds while suppressing hisses and hums. This results in clearer, more natural sound quality, particularly in quiet passages. Dolby NR is widely appreciated for making listening more comfortable and preserving audio detail, even with lower-quality recordings. It’s a subtle but effective enhancement that improves overall sound experience without changing the music or audio content.