60f675ff8d
This CL includes two changes that break bit-exactness, but that haven't changed the way AGC2 behaves - the new behavior has been verified with audioproc_f on a collection of AEC dumps and Wav files (42 recordings in total). 1) The fixed digital controller can directly be initialized in the `GainController2` ctor. Before, `SetGainFactor()` was called after the creation of the object and that caused an initial ramp up lasting one 10 ms frame from -inf to 0 dB. As an effect of the new initialization, the initial ramp up doesn't happen anymore. 2) In [1] the AGC2 VAD has been moved from the adaptive digital controller into `GainController2`. In order to not break bit-exactness, the VAD was placed after the fixed digital controller and before the adaptive digital one. However, to reduce the chance of incorrect estimation of the speech probability, the VAD should analyze the audio before any digital processing is applied inside AGC2. [1] https://webrtc-review.googlesource.com/c/src/+/234583 Bug: webrtc:7494 Change-Id: I9418229cbe537014fed8271c5550c3ce2bc88e26 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/235240 Commit-Queue: Alessio Bazzica <alessiob@webrtc.org> Reviewed-by: Hanna Silen <silen@webrtc.org> Reviewed-by: Per Åhgren <peah@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35252}
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 here 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
- Official web site: http://www.webrtc.org
- Master source code repo: https://webrtc.googlesource.com/src
- Samples and reference apps: https://github.com/webrtc
- Mailing list: http://groups.google.com/group/discuss-webrtc
- Continuous build: https://ci.chromium.org/p/webrtc/g/ci/console
- Coding style guide
- Code of conduct
- Reporting bugs
- Documentation