The mobile phone has become the primary device for personal music and multimedia consumption. This increases the focus on audio quality, especially when listening through headphones, providing impetus for a transition from mobile audio being a low quality, best effort music player to one that can be compared to dedicated high audio quality playback systems. The task of delivering audiophile quality music to mobile phone users provides a unique challenge requiring extremely low power. The latest, highly integrated audio solutions for smartphone chipsets use technologies, architectures, and algorithms that can deliver HIFI audio while still providing attractive power consumption and cost. With this fast improvement in mobile phone audio the system level design and testing methodologies need to keep up.
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