npm i @alicloud/pop-core -S
实例化客户端
// 官方文档:SDK方式获取Token_智能语音交互(ISI)-阿里云帮助中心
const RPCClient = require('@alicloud/pop-core').RPCClient
const ttsClient = new RPCClient({
accessKeyId: 'xxx', // 阿里云申请
accessKeySecret: 'xxx', // 阿里云申请
endpoint: 'http://nls-meta.cn-shanghai.aliyuncs.com',
apiVersion: '2019-02-28'
})
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接口
router.get('/get/tts/url', async (req, res) => {
// 获取token
// 官方文档:SDK方式获取Token_智能语音交互(ISI)-阿里云帮助中心
let token;
if(req.cookies.tts_token) {
token = req.cookies.tts_token
} else {
const result = await ttsClient.request('CreateToken')
if(result.ErrCode) {
console.error(result)
} else {
token = result.Token.Id
res.cookie('tts_token', token, { expires: new Date(result.Token.ExpireTime * 1000) })
}
}
// RESTful API
// 官方文档:语音合成RESTfulAPI_智能语音交互(ISI)-阿里云帮助中心
const url = `https://nls-gateway-cn-shanghai.aliyuncs.com/stream/v1/tts?appkey=xxx&token=${token}&text=${req.query.text}&format=wav&sample_rate=16000&voice=aida`
// 转换成音频输出
https.get(url, (response) => {
res.setHeader('Content-Type', 'audio/mpeg')
response.pipe(res)
})
})
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前端调用
const ttsAudio = new Audio()
ttsAudio.src = `http://localhost/get/tts/url?text=${encodeURI('你好,世界')}`
ttsAudio.play()
ttsAudio.onended = function () {
// ...
}