com.apple.speech.speechsynthesisd(8) System Manager's Manual com.apple.speech.speechsynthesisd(8)

com.apple.speech.speechsynthesisdCentralized text-to-speech process for generating speech output.

com.apple.speech.speechsynthesisd is a user or system launch daemon that handles multiple text-to-speech requests from clients. The process loads synthesizer bundles from /System/Library/Speech/Synthesizers/ or /Library/Speech/Synthesizers/, in addition to voices from /System/Library/Speech/Voices/, /Library/Speech/Voices/ and ~/Library/Speech/Voices/. com.apple.speech.speechsynthesisd This daemon supports the public Carbon and Cocoa (NSSpeechSynthesizer) APIs. Major Apple clients include VoiceOver, Siri and various built-in speech features.

July 13, 2017 Mac OS X 12