* Speech-to-text software: This translates spoken words into text. Examples include Google Assistant, Siri, and Dragon NaturallySpeaking. These are helpful for people who have difficulty typing, or for taking notes during meetings.
* Text-to-speech software: This reads aloud text that is written on a computer screen. Examples include the text-to-speech feature on most computers and smartphones. This is helpful for people who have difficulty reading, or for listening to text while driving or doing other activities.
* Assistive devices for communication: These devices help people who have difficulty speaking to communicate. This includes things like speech-generating devices (SGDs) for people who have lost their ability to speak, and augmentative and alternative communication (AAC) devices for people who have difficulty forming words or sentences.
* Telephones and other communication devices: These allow us to communicate with people who are far away.
So, what kind of machine are you thinking of?