uniapp implements voice broadcasting

With the advancement of science and technology, voice technology has become increasingly popular, and voice broadcast has become an indispensable function in many applications. In mobile applications, voice broadcast allows users to hear important notifications, reminders, news, etc., and improves user efficiency. As for developers, how to implement this function? This article will introduce how to implement the voice broadcast function in uniapp.

1. Principle of Voice Broadcasting

In iOS and Android systems, there are APIs for voice broadcasting, namely AVSpeechSynthesizer and TextToSpeech respectively. The implementation methods of these two APIs are different, but the principles of their implementation are the same.

The implementation principle of voice broadcast is through a technology called "Text-to-Speech". To put it simply, it converts text into speech and realizes the reporting function by playing the speech. This technology is very mature, and text-to-speech services in different languages ​​and accents have become very popular.

2. Implementation steps

In order to implement the voice broadcast function in uniapp, you need to follow the following steps:

1. Install the plug-in

In uniapp Search the "Voice Broadcast" plug-in in the plug-in market, download and install it into the uniapp project.

2. Import the plug-in

Open the main.js file and add the following code in the file:

import Fanyi from './components/Fanyi.vue'
Vue.component('fanyi', Fanyi)

3. Create a broadcast component

Create a name For the component of "Fanyi.vue", add the following code:

<template>
  <div>
    <button @click="start">{{text}}</button>
  </div>
</template>

<script>
  export default {
    props: {
      text: String
    },
    methods: {
      start () {
        uni.speak({text: this.text})
      }
    }
  }
</script>

This code is mainly to create a button. When the user clicks the button, the uni.speak method is called to convert the text into speech and play it. .

4. Call the broadcast component

Reference the "Fanyi" component just created where the voice broadcast function is needed, and pass the text that needs to be broadcast. For example:

<fanyi text="请注意，门已经打开了"></fanyi>

This realizes the operation of using the voice broadcast function in uniapp.

3. Supplementary explanation

Although using plug-ins can quickly realize the voice broadcast function, there are some disadvantages in this method. For example, if the broadcast text is too long, the playback may be incomplete or the playback may fail; if the user leaves the current application during the broadcast, the broadcast will automatically stop, etc.

Therefore, when using the voice broadcast function, the length of the text needs to be limited, and it is recommended to add a prompt message when broadcasting the text to remind the user to keep the application in the foreground state.

Generally speaking, through the above steps, the voice broadcast function can be implemented in the uniapp project, which can not only improve the efficiency of the application, but also make the application more intelligent and better provide services to users.

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