- #Speech to text chrome extension mac os#
- #Speech to text chrome extension install#
- #Speech to text chrome extension windows#
On most Windows, Mac OS X, and Chrome OS systems, speech synthesis provided by the operating system should be able to speak any text in at least one language. # Choosing a voiceīy default, Chrome chooses the most appropriate voice for each utterance you want to speak, based on the language. Not all speech engines will support all SSML tags, and some may not support SSML at all, but all engines are required to ignore any SSML they don't support and to still speak the underlying text. ' word of this sentence was emphasized.' + If you use SSML, the first argument to speak() should be a complete SSML document with an XML header and a top-level tag, not a document fragment. Utterances used in this API may include markup using the Speech Synthesis Markup Language (SSML). If you do not want to use a voice unless it sends certain events, pass the events you require in the requiredEventTypes member of the options object, or use getVoices() to choose a voice that meets your requirements. Some voices may not support all event types, and some voices may not send any events at all. After one of those events is received, this utterance will no longer speak and no new events from this utterance will be received.
Check event.errorMessage for details.įour of the event types- 'end', 'interrupted', 'cancelled', and 'error'-are final. 'error': An engine-specific error occurred and this utterance cannot be spoken.'cancelled': This utterance was queued, but then cancelled by another call to speak() or stop() and never began to speak at all.'interrupted': This utterance was interrupted by another call to speak() or stop() and did not finish.'end': The engine has finished speaking the utterance.Use event.charIndex to determine the current speech position. 'sentence': A sentence boundary was reached.'start': The engine has started speaking the utterance.errorMessage ) Įach event includes an event type, the character index of the current speech relative to the utterance, and for error events, an optional error message. To get more real-time information about the status of synthesized speech, pass an event listener in the options to speak(), like this: chrome. To catch these errors too, you need to use an event listener, described below. The purpose of the callback is to alert you to syntax errors in your use of the TTS API, not to catch all possible errors that might occur in the process of synthesizing and outputting speech.
The callback returns right away, before the engine has started generating speech. Inside the callback, check runtime.lastError to see if there were any errors. To catch errors and make sure you're calling speak() correctly, pass a callback function that takes no arguments. Not all speech engines will support all options. speak ( 'Hello, world.', ) Ī complete description of all options can be found in the tts.speak below. You can provide options that control various properties of the speech, such as its rate, pitch, and more. To stop speaking immediately, just call stop(): chrome. # Generating speechĬall speak() from your extension or Chrome App to speak.
#Speech to text chrome extension install#
On all platforms, the user can install extensions that register themselves as alternative speech engines.
#Speech to text chrome extension windows#
Chrome provides native support for speech on Windows (using SAPI 5), Mac OS X, and Chrome OS, using speech synthesis capabilities provided by the operating system.