使用recorder.js录制语音并将其上载到pythonflask服务器，但WAV文件已损坏

libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 file.wav: Invalid data found when processing input

libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 Input #0, wav, from '/mnt/c/Users/w0obe/Downloads/2020-02-03T02_53_29.366Z.wav': Duration: 00:00:07.34, bitrate: 768 kb/s Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels, s16, 768 kb/s

. ├── file.wav(uploaded WAV file) ├── main.py ├── Pipfile ├── Pipfile.lock ├── static │ └── js │ └── app.js └── templates └── index.html

#!/usr/bin/env python # -*- coding: utf-8 -*- from flask import Flask from flask import request from flask import render_template import os app = Flask(__name__) @app.route("/", methods=['POST', 'GET']) def index(): if request.method == "POST": f = open('./file.wav', 'wb') f.write(request.get_data("audio_data")) f.close() if os.path.isfile('./file.wav'): print("./file.wav exists") return render_template('index.html', request="POST") else: return render_template("index.html") if __name__ == "__main__": app.run()

<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Simple Recorder.js demo with record, stop and pause - addpipe.com</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> </head> <body> <h1>Simple Recorder.js demo</h1> <div id="controls"> <button id="recordButton">Record</button> <button id="pauseButton" disabled>Pause</button> <button id="stopButton" disabled>Stop</button> </div> <div id="formats">Format: start recording to see sample rate</div> <p><strong>Recordings:</strong></p> <ol id="recordingsList"></ol>  <script src="https://cdn.rawgit.com/mattdiamond/Recorderjs/08e7abd9/dist/recorder.js"></script> <script src="/static/js/app.js"></script> </body> </html>

//webkitURL is deprecated but nevertheless URL = window.URL || window.webkitURL; var gumStream; //stream from getUserMedia() var rec; //Recorder.js object var input; //MediaStreamAudioSourceNode we'll be recording // shim for AudioContext when it's not avb. var AudioContext = window.AudioContext || window.webkitAudioContext; var audioContext //audio context to help us record var recordButton = document.getElementById("recordButton"); var stopButton = document.getElementById("stopButton"); var pauseButton = document.getElementById("pauseButton"); //add events to those 2 buttons recordButton.addEventListener("click", startRecording); stopButton.addEventListener("click", stopRecording); pauseButton.addEventListener("click", pauseRecording); function startRecording() { console.log("recordButton clicked"); /* Simple constraints object, for more advanced audio features see https://addpipe.com/blog/audio-constraints-getusermedia/ */ var constraints = { audio: true, video:false } /* Disable the record button until we get a success or fail from getUserMedia() */ recordButton.disabled = true; stopButton.disabled = false; pauseButton.disabled = false /* We're using the standard promise based getUserMedia() https://developer.mozilla.org/en-US/docs/Web/API/MediaDevices/getUserMedia */ navigator.mediaDevices.getUserMedia(constraints).then(function(stream) { console.log("getUserMedia() success, stream created, initializing Recorder.js ..."); /* create an audio context after getUserMedia is called sampleRate might change after getUserMedia is called, like it does on macOS when recording through AirPods the sampleRate defaults to the one set in your OS for your playback device */ audioContext = new AudioContext(); //update the format document.getElementById("formats").innerHTML="Format: 1 channel pcm @ "+audioContext.sampleRate/1000+"kHz" /* assign to gumStream for later use */ gumStream = stream; /* use the stream */ input = audioContext.createMediaStreamSource(stream); /* Create the Recorder object and configure to record mono sound (1 channel) Recording 2 channels will double the file size */ rec = new Recorder(input,{numChannels:1}) //start the recording process rec.record() console.log("Recording started"); }).catch(function(err) { //enable the record button if getUserMedia() fails recordButton.disabled = false; stopButton.disabled = true; pauseButton.disabled = true }); } function pauseRecording(){ console.log("pauseButton clicked rec.recording=",rec.recording ); if (rec.recording){ //pause rec.stop(); pauseButton.innerHTML="Resume"; }else{ //resume rec.record() pauseButton.innerHTML="Pause"; } } function stopRecording() { console.log("stopButton clicked"); //disable the stop button, enable the record too allow for new recordings stopButton.disabled = true; recordButton.disabled = false; pauseButton.disabled = true; //reset button just in case the recording is stopped while paused pauseButton.innerHTML="Pause"; //tell the recorder to stop the recording rec.stop(); //stop microphone access gumStream.getAudioTracks()[0].stop(); //create the wav blob and pass it on to createDownloadLink rec.exportWAV(createDownloadLink); } function createDownloadLink(blob) { var url = URL.createObjectURL(blob); var au = document.createElement('audio'); var li = document.createElement('li'); var link = document.createElement('a'); //name of .wav file to use during upload and download (without extendion) var filename = new Date().toISOString(); //add controls to the <audio> element au.controls = true; au.src = url; //save to disk link link.href = url; link.download = filename+".wav"; //download forces the browser to donwload the file using the filename link.innerHTML = "Save to disk"; //add the new audio element to li li.appendChild(au); //add the filename to the li li.appendChild(document.createTextNode(filename+".wav ")) //add the save to disk link to li li.appendChild(link); //upload link var upload = document.createElement('a'); upload.href="#"; upload.innerHTML = "Upload"; upload.addEventListener("click", function(event){ var xhr=new XMLHttpRequest(); xhr.onload=function(e) { if(this.readyState === 4) { console.log("Server returned: ",e.target.responseText); } }; var fd=new FormData(); fd.append("audio_data",blob, filename); xhr.open("POST","/",true); xhr.send(fd); }) li.appendChild(document.createTextNode (" "))//add a space in between li.appendChild(upload)//add the upload link to li //add the li element to the ol recordingsList.appendChild(li); }

2条回答

网友

1楼 · 编辑于 2024-10-02 02:24:03

我有这个问题，需要2天才能找到解决方案：））。在flask服务器中，您可以使用request.files['audio_data']获取wav音频文件。您也可以将其作为音频变量传递和使用。希望这能对你有所帮助

网友

2楼 · 编辑于 2024-10-02 02:24:03

对于那些在这之后仍然无法理解的人。只要换个颜色就行了

main.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
from flask import Flask
from flask import request
from flask import render_template
import os

app = Flask(__name__)


@app.route("/", methods=['POST', 'GET'])
def index():
    if request.method == "POST":
        f = request.files['audio_data']
        with open('audio.wav', 'wb') as audio:
            f.save(audio)
        print('file uploaded successfully')

        return render_template('index.html', request="POST")
    else:
        return render_template("index.html")


if __name__ == "__main__":
    app.run(debug=True)

注意：

Using ":" in the filename confuses ffmpeg/ffprobe (and it does not matter whether you use "" or ' to surround the file name, and backslash escaping does not work for ":"). The only possible solution is to [temporarily] remove ":" from the filename.

相关问题更多 >

编程相关推荐

热门问题

热门文章