5
我正尝试将WebSocket连接的音频流发送到Google Speech API。 websocket以20ms为增量发送二进制消息。它以增量的方式发送它使我相信我会以某种方式暂时读取和写入数据到本地文件，以避免与Google的连接中断。但是，这并不理想。如何将websocket二进制消息作为流发送到Google Speech API？
有没有办法直接管道websocket流到recognizeStream？从文档
谷歌streamingRecognize例如：
const request = {
config: {
encoding: encoding,
sampleRate: sampleRate
}
};
const recognizeStream = speech.createRecognizeStream(request)
.on('error', console.error)
.on('data', (data) => process.stdout.write(data.results));
record.start({
sampleRate: sampleRate,
threshold: 0
}).pipe(recognizeStream);
WebSocket连接：
var HttpDispatcher = require('httpdispatcher');
var dispatcher = new HttpDispatcher();
var WebSocketServer = require('websocket').server;
var server = http.createServer(handleRequest);
var wsServer = new WebSocketServer({
httpServer: server,
autoAcceptConnections: true,
});
function handleRequest(request, response){
try {
//log the request on console
console.log(request.url);
//Dispatch
dispatcher.dispatch(request, response);
} catch(err) {
console.log(err);
}
}
wsServer.on('connect', function(connection) {
console.log((new Date()) + ' Connection accepted' + ' - Protocol Version ' + connection.webSocketVersion);
connection.on('message', function(message) {
if (message.type === 'utf8') {
console.log(message.utf8Data);
}
else if (message.type === 'binary') {
//Send to Google Speech API by passing into recognizeStream
}
});
connection.on('close', function(reasonCode, description) {
console.log((new Date()) + ' Peer ' + connection.remoteAddress + ' disconnected.');
});
});