我正在针对文本Web应用程序进行简单的演讲,我已经拥有有效的服务器端nodejs代码和简单的react页面,但是我不知道如何将它们粘合在一起,我试图实现各种不同的怪异事物,或者react应用程序未获取任何数据作为回报,或者错误500。
我想在从Google获得转录后为记录器实现stop()函数,因为它被设置为仅侦听短命令,但是我可以实现的唯一解决方案是setTimeout函数,它与我所不完全相同想要的。
编辑:我已经解决了获得命令后停止记录器的问题,并且效果很好,但是,欢迎进行任何改进。解决方案非常简单,我刚刚将阈值从null修改为thresholdEnd: 0.5
。仍未解决此Express应用程序的前端。
编辑2:有趣的事情,我不经意间发现了this stuff,而这正是我想要的...为了找到这个惊人且超级简单的解决方案,我们付出了巨大的努力,尤其是如果您遵循此medium article
有人可以帮助我吗?
服务器端代码:
'use strict';
const express = require('express');
const app = express();
const port = 3002;
const cors = require('cors')
// Node-Record-lpcm16
const recorder = require('node-record-lpcm16');
// Imports the Google Cloud client library
const speech = require('@google-cloud/speech');
function speechFunction() {
const encoding = 'LINEAR16';
const sampleRateHertz = 16000;
const languageCode = 'en-US';
const command_and_search = 'command_and_search';
const keywords = ['turn on', 'turn off', 'turn it on', 'turn it off'];
const request = {
config: {
encoding: encoding,
sampleRateHertz: sampleRateHertz,
languageCode: languageCode,
model: command_and_search,
speech_contexts: keywords
},
singleUtterance: true,
interimResults: false // If you want interim results, set this to true
};
// Creates a client
const client = new speech.SpeechClient();
// Create a recognize stream
const recognizeStream = client
.streamingRecognize(request)
.on('error', console.error)
.on('data', data =>
// process.stdout.write(
console.log(
data.results[0] && data.results[0].alternatives[0]
? `Transcription: ${data.results[0].alternatives[0].transcript}\n`
: `\n\nReached transcription time limit, press Ctrl+C\n`
)
);
// Start recording and send the microphone input to the Speech API
recorder
.record({
sampleRateHertz: sampleRateHertz,
threshold: 0, //silence threshold
recordProgram: 'rec', // Try also "arecord" or "sox"
silence: '5.0', //seconds of silence before ending
endOnSilence: true,
thresholdEnd: 0.5
})
.stream()
.on('error', console.error)
.pipe(recognizeStream);
console.log('Listening, press Ctrl+C to stop.');
// [END micStreamRecognize]
}
app.use(cors());
app.use('/api/speech-to-text/',function(req, res){
speechFunction(function(err, result){
if (err) {
console.log('Error retrieving transcription: ', err);
res.status(500).send('Error 500');
return;
}
res.send(result);
})
});
// app.use('/api/speech-to-text/', function(req, res) {
// res.speechFunction();
// });
// app.get('/speech', (req, res) => res.speechFunction);
app.listen(port, () => {
console.log(`Listening on port: ${port}, at http://localhost:${port}/`);
});
反应
import React, { Component } from 'react';
import './App.css';
class App extends Component {
constructor() {
super()
this.state = {
}
}
onListenClick() {
fetch('http://localhost:3002/api/speech-to-text/')
.then(function(response) {
console.log(response);
this.setState({text: response});
})
.catch(function(error) {
console.log(error);
});
}
render() {
return (
<div className="App">
<button onClick={this.onListenClick.bind(this)}>Start</button>
<div style={{fontSize: '40px'}}>{this.state.text}</div>
</div>
);
}
}
export default App;
答案 0 :(得分:1)
用以下代码替换onListenClick()代码
async onListenClick(){
const response= await axios.get('http://localhost:3002/api/speech-to-text/')
console.log(response)
this.setState(text:response.data)
}
我试图找出如何通过单击按钮来停止google api。但是上面的代码将使数据产生反应