Lossless audio means that under the limitations of existing computing power and storage capacity, from the sampling of audio content to storage, editing, playback and other processes, high-level mathematical, lossless editing and storage are used. High restoration playback, this is the so-called "lossless music". This is the highest audio quality requirement currently achievable. This consists of three parts. The sound source must have a high sampling rate, no less than the number of channels of the playback device, and more than 16 bits. The transmission/storage/editing must be lossless, and the playback must use a playback device with high restoration capabilities. However, due to data loss during audio digitization, in fact it can never be truly lossless.
Generally speaking, it is enough for our mobile phone player to use high-quality audio and video.
No need to deliberately pursue "lossless"