Lo-fi sounds refer to audio recordings that intentionally embrace imperfections, such as background noise, distortion, or a lack of high fidelity. This style often creates a warm, nostalgic atmosphere, making it popular in various music genres, especially in chillhop and indie music. These sounds are commonly used in study playlists and relaxation music, as they can help listeners focus or unwind. The aesthetic of lo-fi often includes samples from old records, nature sounds, or spoken word snippets, contributing to its unique charm and appeal.