SpeechSynthesisUtterance

Web Speech API的SpeechSynthesisUtterance接口代表一个语音请求。它包含语音服务应阅读的内容以及有关如何阅读的信息（例如语言、音高和音量）。–引自MDN

属性

SpeechSynthesisUtterance.lang
获取和设置说话的语言。
SpeechSynthesisUtterance.pitch
获取和设置说话的音调。
SpeechSynthesisUtterance.rate
获取和设置说话的速度。
SpeechSynthesisUtterance.text
获取并设置说话时将合成的文本。
SpeechSynthesisUtterance.voice
获取和设置将用于说语的声音。
SpeechSynthesisUtterance.volume
获取和设置说话的音量。

事件

boundary
当口语达到单词或句子边界时触发。
end
当口语结束时触发
error
当错误发生时触发，该错误导致无法成功说出该语句。
mark
当口语达到指定的SSML“mark”标记时触发。
pause
在说话暂停时触发
resume
当暂停的说话恢复时触发。
start
当开始说话时触发

小项目还是在github上面找的然后模仿着做的
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html代码

<body>
    <div class="container">
        <h1>Speech Text Reader</h1>
        <button class="btn" id="toggle">Toggle Text Box</button>
        <div class="text-box show">
            <h3>Choose Voice</h3>
            <div id="close" class="close">X</div>
            <select name="" id="voices"></select>
            <textarea name="" id="text" placeholder="Enter text to read..."></textarea>
            <button class="btn" id="read">Read Text</button>
        </div>
        <main></main>
    </div>
    <script src="script.js"></script>
</body>

css代码

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #ffefea;
    min-height: 100vh;
}

.container {
    text-align: center;
    padding: 20px;
}

h1 {
    margin: 20px 0;
}

.btn {
    background-color: darksalmon;
    color: white;
    border-radius: 5px;
    font-size: 16px;
    padding: 8px;
    border: 0 none;
    cursor: pointer;
}

.btn:active {
    transform: scale(0.98);
}

#toggle {
    margin-bottom: 20px;
}

.text-box {
    position: absolute;
    top: 30%;
    left: 50%;
    width: 70%;
    transform: translateX(-50%);
    background-color: #333;
    padding: 20px;
    border-radius: 5px;
    color: white;
    transition: all 1s ease-in-out;
}

.close {
    float: right;
    cursor: pointer;
}

h3 {
    float: left;
    margin: 18px 0;
}

#voices {
    background-color: darksalmon;
    height: 30px;
    width: 100%;
    color: white;
    cursor: pointer;
    outline: none;
}

#text {
    margin: 15px 0;
    padding: 8px;
    font-size: 16px;
    border-radius: 5px;
    width: 100%;
    height: 150px;
    resize: none;
}

#read {
    width: 100%;
}

.show {
    transform: translate(-50%, -200%);
}

main {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 10px;
}

.box {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.718);
    border-radius: 5px;
    overflow: hidden;
}

.box.active {
    box-shadow: 0 0 10px 5px darksalmon;
}

.box img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.box .info {
    background-color: darksalmon;
    padding: 10px;
    color: white;
    font-size: 18px;
}

@media (max-width:1100px) {
    main {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media(max-width:760px) {
    main {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media(max-width:500px) {
    main {
        grid-template-columns: 1fr;
    }
}

js代码

var toggleBtn = document.querySelector('#toggle')
var textbox = document.querySelector('.text-box')
var closeBtn = document.querySelector('#close')
var main = document.querySelector('main')
var readBtn = document.querySelector('#read')
var textarea = document.querySelector('#text')
var voicesSelect = document.querySelector('#voices')


toggleBtn.addEventListener('click', () =>
    textbox.classList.toggle('show'))

closeBtn.addEventListener('click', () => {
    textbox.classList.toggle('show')
    textarea.value = ''
})

var data = [{
        image: './img/drink.jpg',
        text: "多喝热水"
    },
    {
        image: './img/food.jpg',
        text: "不要减肥"
    },
    {
        image: './img/tired.jpg',
        text: "多睡觉"
    },
    {
        image: './img/hurt.jpg',
        text: "啊哦"
    },
    {
        image: './img/happy.jpg',
        text: "病毒快死！"
    },
    {
        image: './img/angry.jpg',
        text: "疫情快滚！"
    },
    {
        image: './img/sad.jpg',
        text: "烦死人啦！"
    },
    {
        image: './img/scared.jpg',
        text: "好想出去玩"
    },
    {
        image: './img/outside.jpg',
        text: '世界多好'
    },
    {
        image: './img/home.jpg',
        text: '快出去！'
    },
    {
        image: './img/school.jpg',
        text: '想回学校！'
    },
    {
        image: './img/grandma.jpg',
        text: '呜呜呜'
    }
];
data.forEach(createBox)

function createBox(item) {
    var box = document.createElement('div')
    box.classList.add('box')
    var { image, text } = item
    box.innerHTML = `<img src="${image}" alt="text"/><p class="info">${text}</p>`
    box.addEventListener('click', () => {
        setTextMessage(text)
        speakText()
        box.classList.add('active')
        setTimeout(() => {
            box.classList.remove('active')
        }, 800);
    })
    main.appendChild(box);
}

var message = new SpeechSynthesisUtterance()

var voices = []

function setTextMessage(text) {
    message.text = text
}

function speakText() {
    speechSynthesis.speak(message)
}

speechSynthesis.addEventListener('voiceschanged', getVoices)

readBtn.addEventListener('click', () => {
    setTextMessage(textarea.value)
    speakText()
})

function getVoices() {
    voices = speechSynthesis.getVoices()
    voices.forEach(voice => {
        var options = document.createElement('option')
        options.value = voice.name
        options.innerHTML = `${voice.name}${voice.lang}`
        voicesSelect.appendChild(options)
    })
}

voicesSelect.addEventListener('change', function(e) {
    message.voice = voices.find(voices => voices.name === e.target.value)
})