1T-AP-299 Dolby digital to analog audio converter is a versatile tool that provides conversion capabilities between optical, coaxial and L/R analog audio signals. The AP-299 has the ability to convert digital signals into analog and analog signals into digital format and also allows simultaneous conversion of audio formats. For example, when converting optical digital signals into analog L/R audio you can also create coaxial format output from the same input audio source. The technology employed includes the exclusive Dolby® digital decoder, a digital interpolator Filter, and digital to analog converter using sampling frequencies from 32 to 96KHz. An AC adaptor is provided.