And in many cases, you need to adjust audio quality in the headphones app to turn it on as well. Check the specsChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOClose Christine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOEvery smartphone supports playback of audio files in a specific codec. If you connect via cable and add a portable DAC to the equation, you get the best possible audio quality. You can also keep Dolby Atmos always on or automatic, so it kicks in when a track and your headphones support it. The headphones app lets you chooseIt might be buried in settingsChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOClose Christine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOChristine Persaud / MUOIf you have a pair of premium headphones from a brand like Sennheiser, the app will typically include an option to adjust settings.