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音频降噪音，回声消除，自动增益代码示例

 2 years ago
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音频降噪音，回声消除，自动增益代码示例 | Lenix Blog

json 

<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">

  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <style>
    html, body{
      height: 100%;
      width: 100%;
    }
    #video{
      height: 300px;
      width: 300px;
    }
  </style>
  <script>
    $(() => {
      var constraints =  {
        audio: {
          echoCancellationType: 'system',//browser|system
          echoCancellation: true,
          noiseSuppression: true,
          autoGainControl: false,
          sampleRate:24000,
          sampleSize:16,
          channelCount:2,
          volume:0.5
        },
        video: {
          width:320,
          height:240,
          frameRate:{ideal:60, min:10}
        }
      }

      navigator.mediaDevices.getUserMedia(constraints).then((stream) => {
        $('#video')[0].srcObject = stream;
        let statusHtml = '';
        stream.getTracks().forEach((track) => {
          statusHtml = statusHtml + track.kind+":"+JSON.stringify(track.getSettings(), null, 2)+'<br>';
          console.log('settings:', track.getSettings());
          console.log('capabilities:', track.getCapabilities());
        })
        $('#status').html(statusHtml);
      }).catch((err) => {
        console.log(err);
      });
    });
  </script>
</head>
<body>
  <h1> 音频降噪音，回声消除，自动增益测试</h1>
  <p>尝试更改 echoCancellation, noiseSuppression ，autoGainControl属性的值 .</p>
  <div>
  <video id='video' autoplay='false' playsinline='false'></video>
  <pre id='status'></pre>
  </div>
  </body>
</html>
  1. <!DOCTYPE html>
  2. <html lang="zh-CN">
  3. <head>
  4. <meta charset="utf-8">
  5. <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  6. <style>
  7. html, body{
  8. height: 100%;
  9. width: 100%;
  10. #video{
  11. height: 300px;
  12. width: 300px;
  13. </style>
  14. <script>
  15. $(() => {
  16. var constraints = {
  17. audio: {
  18. echoCancellationType: 'system',//browser|system
  19. echoCancellation: true,
  20. noiseSuppression: true,
  21. autoGainControl: false,
  22. sampleRate:24000,
  23. sampleSize:16,
  24. channelCount:2,
  25. volume:0.5
  26. video: {
  27. width:320,
  28. height:240,
  29. frameRate:{ideal:60, min:10}
  30. navigator.mediaDevices.getUserMedia(constraints).then((stream) => {
  31. $('#video')[0].srcObject = stream;
  32. let statusHtml = '';
  33. stream.getTracks().forEach((track) => {
  34. statusHtml = statusHtml + track.kind+":"+JSON.stringify(track.getSettings(), null, 2)+'<br>';
  35. console.log('settings:', track.getSettings());
  36. console.log('capabilities:', track.getCapabilities());
  37. $('#status').html(statusHtml);
  38. }).catch((err) => {
  39. console.log(err);
  40. </script>
  41. </head>
  42. <body>
  43. <h1> 音频降噪音，回声消除，自动增益测试</h1>
  44. <p>尝试更改 echoCancellation, noiseSuppression ，autoGainControl属性的值 .</p>
  45. <div>
  46. <video id='video' autoplay='false' playsinline='false'></video>
  47. <pre id='status'></pre>
  48. </div>
  49. </body>
  50. </html>
<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="utf-8">

  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
  <style>
    html, body{
      height: 100%;
      width: 100%;
    }
    #video{
      height: 300px;
      width: 300px;
    }
  </style>
  <script>
    $(() => {
      var constraints =  {
        audio: {
          echoCancellationType: 'system',//browser|system
          echoCancellation: true,
          noiseSuppression: true,
          autoGainControl: false,
          sampleRate:24000,
          sampleSize:16,
          channelCount:2,
          volume:0.5
        },
        video: {
          width:320,
          height:240,
          frameRate:{ideal:60, min:10}
        }
      }

      navigator.mediaDevices.getUserMedia(constraints).then((stream) => {
        $('#video')[0].srcObject = stream;
        let statusHtml = '';
        stream.getTracks().forEach((track) => {
          statusHtml = statusHtml + track.kind+":"+JSON.stringify(track.getSettings(), null, 2)+'<br>';
          console.log('settings:', track.getSettings());
          console.log('capabilities:', track.getCapabilities());
        })
        $('#status').html(statusHtml);
      }).catch((err) => {
        console.log(err);
      });
    });
  </script>
</head>
<body>
  <h1> 音频降噪音，回声消除，自动增益测试</h1>
  <p>尝试更改 echoCancellation, noiseSuppression ，autoGainControl属性的值 .</p>
  <div>
  <video id='video' autoplay='false' playsinline='false'></video>
  <pre id='status'></pre>
  </div>
  </body>
</html>

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