It allows websites and applications to speak to users by controlling the speech synthesis process. The SpeechSynthesis interface is an API provided by modern web browsers that enables JavaScript developers to convert written text into synthesized speech. So go ahead, explore the vast potential of JavaScript Text to Speech, and let your websites and applications speak volumes! Frequently Asked Questions(FAQs) 1. As we continue to push the boundaries of web development, the SpeechSynthesis interface will undoubtedly play a significant role in shaping the future of user experiences. JavaScript Text to Speech opens up endless possibilities, from enhancing accessibility and inclusivity to creating engaging interactive narratives.īy harnessing the power of auditory communication, developers can create rich, immersive experiences that captivate users on a whole new level. The SpeechSynthesis interface has revolutionized the way we interact with websites and applications, breaking the barriers of traditional visual communication. I would recommend you to play around with properties and methods to see how this works. In the code above, you will see all the properties. let speech = new SpeechSynthesisUtterance() Here is the JS code sample, which shows how to use the SpeechSynthesisUtterance and SpeechSynthesis interfaces to initialize and configure the utterance that will be spoken aloud in the browser. NOTE: This feature is an experimental feature and is supported in limited browsers but the latest versions of Chrome, Firefox, Safari, and Opera should support this. Now, let's jump into the code, to see all this in action. This property of the Javascript window object is used to get the reference of the speech synthesis controller interface, on which we call the speak() method. JavaScript window.speechSynthesis Property Voice: To get or set the voice to be used. Text: To get and set the text which has to be spoken. Rate: To get and set the speed at which the utterance will be spoken. Pitch: To get and set the pitch of the voice at which the utterance will be spoken. Lang: To get and set the language of speech. Once we have created an object for this interface, we provide it to the SpeechSynthesis object's speak() method to play the speech.įollowing are the properties provided by this interface to configure it(we have used all of them in our code example): This is the interface in which we actually create the speech or utterance using the text provided, setting a language type, volume, pitch of the voice, rate of speech, etc. JavaScript SpeechSynthesisUtterance Interface GetVoices(): To get a list of all supported voices which the device supports. Pause(): To pause the current ongoing speech.Ĭancel(): To cancel all the pending utterances or speech created, which are not yet played. This is the function, we will be using too. Speak(): Add the utterance(object of SpeechSynthesisUtterance) in the queue, which will be spoken when there is no pending utterance before it. The following are the methods available in this Interface: This interface is used to start the speech, stop the speech, pause it and resume it, along with getting the voices supported by the device. This is the main controller interface for the speech synthesis service which controls the synthesis or creation of speech using the text provided. We will be using the following interfaces/properties in this tutorial: JavaScript Text to Speech using SpeechSynthesis Interface We will cover the speech-to-text in our next post, for this one, we will learn how we can convert text to audio in JavaScript. To add a text-to-speech feature on your webpage using Javascript, we need to use the Web Speech API, which can be used to synthesize speech which is converting text to speech, and we can also use it to recognize speech to convert speech to text. This technology enables developers to convert written text into spoken words, bringing a whole new dimension to user experiences. JavaScript, the dynamic programming language that fuels the interactive web, offers a fascinating feature that allows us to give a voice to our websites and applications: the SpeechSynthesis interface. In a world dominated by visual content, the power of auditory communication should not be underestimated.
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