Apple is reportedly planning to improve the sound quality of its online music streaming service, Apple Music. According to Japanese publication Macotakara, the company will improve the audio beyond what is possible to enjoy through the standard 3.5mm headphone jack, which fits in with reports that Apple may be looking to ditch the port on the iPhone in favor for using the Lightning port for headphones.
The Lightning port would be enable headphone manufacturers to provide 24-bit DAC (digital analog conversion) quality sound, a vast improvement as to what's available with the standard headphone port. It would certainly add yet another unique selling point to the company's family of smartphones, particularly for audiophiles and those who are rarely found without headphones attached to their skull.
Remember that this is all simply a rumor for the time being, folks. Be sure to take with as much salt as you have available in your tanker until official details are announced.