The device that converts digital data into audio signals is called a digital-to-analog converter (DAC). This technology is crucial in various applications, such as music playback on smartphones and audio systems. DACs function by interpreting digital signals and transforming them into continuous analog waveforms, allowing headphones or speakers to reproduce sound. High-quality DACs enhance audio fidelity and are essential for audiophiles seeking to maximize their listening experience. Additionally, modern DACs are integrated into many devices, ensuring seamless connectivity and improved audio performance across a range of digital media.