Developed by an audio technology leader, Qualcomm Aqstic audio codec (WCD 9340/9341) supports high-resolution standards that recording studios use to master tracks, creating a pure audiophile listening experience. It has an integrated DAC (digital-to-analog converter) that supports native Direct-Stream Digital (DSD) and pulse-code modulation (PCM) Hi-Fi audio playback. DSD is a standard found on Super Audio Compact Discs (SACDs), and the Qualcomm Aqstic audio codec can decode DSD files natively. The DAC on the Qualcomm Aqstic codec has ultra-low Total Harmonic Distortion plus Noise (THD+N), which means no additional noise or signal is added for the most authentic sound reproduction. The Qualcomm Aqstic codec is also designed to give you the highest dynamic range available, so you can feel the dramatic change of volume and emotion in your favorite music.