Text-to-Speech Notification

ELM includes support for the Microsoft Speech API (SAPI) 5.0, and has speech integration built into the ELM Server. Using the Text-to-Speech notification method, you can configure the ELM Server to say an event, part of an event, or a custom message when an alert or event occurs.

ELM uses speech synthesis during the execution of the notification method. Speech synthesis is the ability to generate or synthesize spoken language from text. ELM first generates the event as text output in the form of words. The SAPI recognition engine then converts the words into phonetic and prosodic symbols. From that, the SAPI engine generates a digital audio stream which is sent to the ELM Server's sound card. The sound card converts the audio digital stream into an acoustic signal, which is then amplified through the speakers attached to the sound card.

You can use any sound card and speaker set that is on Microsoft's Hardware Compatibility List (HCL).