This application provides a human interface via Terminal (UART1) menus and numbered selections to select and play audible medical alerts that are generated algorithmically on the NXP LPC23xx. The medical alarms are designed to comply with the IEC 60601-1-8 standard for audible medical alarms. The IEC standard seeks to improve patient safety by standardizing medical audible and visual alarms. The audible portion of the standard specifies high, medium, and low priority alarms and these are provided via a menu system. In addition a test menu is added to facilitate analyzing the quality of the alarms generated and their compliance with the standard. Many previous applications used playback techniques to use pre-recorded alarm sounds for the alerts. An algorithmic approach provides a much more efficient, high quality implementation compared to the pre-recorded sounds, plus, the sounds can be customized to differentiate equipment while still staying within the parameter limits of the standard.

