Digital audio systems electronically record and store audio signals such as voice, music, alarm, and security messaging for broadcast, editing, monitoring, and playback. A digital audio system is an electronic device designed for combining, routing, and changing audio signal levels. Each input signal has its own dedicated channel for audio distribution. The channel is set to either stereo or monaural depending on the type of audio distribution settings. The signals received from the input device are buffered to control the amplification factor. A potentiometer is also present for adjusting the sound amplitude before the final mixing of the signals takes place. Signals from various input channels are summed up to generate the main mix signal. In this way, digital music players function to produce the final digital audio signal. There are many types of digital audio systems. Examples include digital voice recorders and a digital audio home theater system. Digital voice recorders are high quality functionality devices with slide control switch operation and are widely used for data and sound recording. A digital audio home theater system is used as a consumer audio application with disc changer and stereo monitoring facility. Other digital audio systems are commonly available.