hardware/software has digital files (can be compressed, or uncompressed) dac - digital to analogue converter, so converts those into soundwaves????? and then the travel, throuhg a vector (headphone wires or speakers) aimplifiier??? headphones???

so thats that.... and there is a diff between, hi res, low res, and lossless, lossy whatver but not much diff between high ress lossy and lossless??? maybe