Google Git
Sign in
webrtc / src / / 83b00f020e2feb9360d74db65573f5442e1b6494
commit83b00f020e2feb9360d74db65573f5442e1b6494[log] [tgz]
authorGustaf Ullberg <gustaf@webrtc.org>Tue Nov 06 15:25:37 2018
committerCommit Bot <commit-bot@chromium.org>Tue Nov 06 16:10:52 2018
tree9b8fcc10085be167e2473347d73bbf625639a60f
parent34fc346a0c77e21bffb6a6631e265a707e6e4ae2 [diff]
AEC3: Computation of comfort noise gains from suppression gains

This change corrects the computation of the comfort noise gains.

Previously the comfort noise gain of band k, CG_k, was computed
from suppression gain of band k, SG_k, as:
CG_k = 1 - SG_k

But since the two signals are uncorrelated (the comfort noise
is randomly generated), the correct gain to maintain power is:
CG_k = sqrt(1 - SG_k^2).

Bug: webrtc:9967,chromium:902262
Change-Id: I393495742163d5e658bca4ab2f7a5067ab15af01
Reviewed-on: https://webrtc-review.googlesource.com/c/109580
Commit-Queue: Gustaf Ullberg <gustaf@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25525}
4 files changed
tree: 9b8fcc10085be167e2473347d73bbf625639a60f
  1. api/
  2. audio/
  3. build_overrides/
  4. call/
  5. common_audio/
  6. common_video/
  7. data/
  8. examples/
  9. infra/
  10. logging/
  11. media/
  12. modules/
  13. p2p/
  14. pc/
  15. resources/
  16. rtc_base/
  17. rtc_tools/
  18. sdk/
  19. stats/
  20. style-guide/
  21. system_wrappers/
  22. test/
  23. tools_webrtc/
  24. video/
  25. .clang-format
  26. .git-blame-ignore-revs
  27. .gitignore
  28. .gn
  29. .vpython
  30. abseil-in-webrtc.md
  31. AUTHORS
  32. BUILD.gn
  33. CODE_OF_CONDUCT.md
  34. codereview.settings
  35. common_types.h
  36. DEPS
  37. ENG_REVIEW_OWNERS
  38. LICENSE
  39. license_template.txt
  40. native-api.md
  41. OWNERS
  42. PATENTS
  43. PRESUBMIT.py
  44. presubmit_test.py
  45. presubmit_test_mocks.py
  46. pylintrc
  47. README.chromium
  48. README.md
  49. style-guide.md
  50. WATCHLISTS
  51. webrtc.gni
  52. whitespace.txt
README.md

WebRTC is a free, open software project that provides browsers and mobile applications with Real-Time Communications (RTC) capabilities via simple APIs. The WebRTC components have been optimized to best serve this purpose.

Our mission: To enable rich, high-quality RTC applications to be developed for the browser, mobile platforms, and IoT devices, and allow them all to communicate via a common set of protocols.

The WebRTC initiative is a project supported by Google, Mozilla and Opera, amongst others.

Development

See http://www.webrtc.org/native-code/development for instructions on how to get started developing with the native code.

Authoritative list of directories that contain the native API header files.

More info