An Interactive Voice Response service is a recording that plays on the phone when you call for service. Basically, it sounds human like and offers you various options on the phone call. Caller options are presented in number until the purpose or goal of your call is reached. Text to speech on the other hand is a simple process that converts your text into speech. It converts a file format on your phone and plays it to you in speech. For instance, if you write something on your notepad, you can use the software to read the text. The IVR would not work well without the TTS services. The IVR system would only be able to write the text but without the TTS it is hard to convert it into speech. In short, the voice you listen to when you make the call is created by IVR text to speech.
For the IVR to work, it requires all the services of the TTS during both the pre-recorded message stage to the recording stage when the phone call starts. Simply, when an IVR script is created in a text format, the TTS software will convert it into an active audio file. The messages that are played when you make the call are usually pre-recorded. TTS is responsible for helping the IVR make all the pre-recorded messages that you hear at the beginning of the call. TTS not only helps the IVR service at the beginning but also during and almost throughout the whole call. It works to redirect the call into the next menu when you press for the services you need. It helps to convert the recorded message into speech when the IVR services redirect to the next information that is put down on the database. Having both services in your business increases the reach of society and new customers; including the visually impaired and people who have a hard time reading.