Like music streaming services, Bluetooth audio sound quality is determined by the codec that carries digital audio (the music) from source to destination; from smartphone to wireless headphone.
Unlike music streaming services, Bluetooth audio offers no lossless option — at least not yet. All codecs used for Bluetooth audio transmission are lossy. Before music can be sent from smartphone to wireless headphone, its file size must be reduced to meet Bluetooth’s (lower) bandwidth requirements. A small part of the original file is discarded.… Read the full article