)]}'
{
  "commit": "09226fc8326316bf7c05df5793aab39cfe1ac660",
  "tree": "eec9a71ca32d917aba7df2df7f34c1c15ce1e4b4",
  "parents": [
    "e5caa9e2d3c7e402dd62892b1de6bd4be6f6aaf5"
  ],
  "author": {
    "name": "Gustaf Ullberg",
    "email": "gustaf@webrtc.org",
    "time": "Fri Feb 19 12:03:14 2021"
  },
  "committer": {
    "name": "Commit Bot",
    "email": "commit-bot@chromium.org",
    "time": "Tue Feb 23 07:06:11 2021"
  },
  "message": "Disable high-pass filtering of the AEC reference\n\nCurrently the echo canceller reference signal is high-pass filtered to\navoid the need of modeling the capture-side high-pass filter as part of\nthe echo path.\n\nThis can lead to the lowest frequency bins of the linear filter\ndiverging as there is little low-frequency content available for\ntraining. Over time the filter can output an increasing amount of\nlow-frequency power, which in turn affects the filter\u0027s ability to\nadapt properly.\n\nDisabling the high-pass filtering of the echo canceller reference solves\nthis issue, resulting in improved filter convergence.\n\nBug: webrtc:12265\nChange-Id: Ic526a4b1b73e1808cfcd96a8cdee801b96a27671\nReviewed-on: https://webrtc-review.googlesource.com/c/src/+/208288\nReviewed-by: Per Åhgren \u003cpeah@webrtc.org\u003e\nCommit-Queue: Gustaf Ullberg \u003cgustaf@webrtc.org\u003e\nCr-Commit-Position: refs/heads/master@{#33322}\n",
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