| commit | 0520b0eb7b158fe9b2a2c2d2896219274af02594 | [log] [tgz] |
|---|---|---|
| author | Alex Loiko <aleloi@webrtc.org> | Tue May 08 13:11:12 2018 +0200 |
| committer | Commit Bot <commit-bot@chromium.org> | Tue May 08 12:07:42 2018 +0000 |
| tree | b9fa7e5dedba48db7342a4635a003c7bc5ba2e72 | |
| parent | 0bd0a3fe4cd279c46b3813c98519d54cc6533a7c [diff] |
FFT-based auto correlation. During pitch search in the RNN VAD, we calculate auto correlation. Before this CL, we computed kNumInvertedLags12kHz=147 dot products of vectors with kBufSize12kHz-kMaxPitch12kHz=240 elements. This was the most time consuming step of the new VAD. This CL makes the computation happen in frequency domain. Profiling shows a 3x speed increase. In future, we can try using a more efficient FFT and to reduce the FFT length to some of e.g. 400, 405, 432. # For minimal Clang plugin check change. TBR: kwiberg@webrtc.org Bug: webrtc:9076 Change-Id: I688251a415869d53175a37f390f441d4e035d954 Reviewed-on: https://webrtc-review.googlesource.com/73366 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Alessio Bazzica <alessiob@webrtc.org> Commit-Queue: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#23171}
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.
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.