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webrtc_m130/modules/audio_processing/agc2/rnn_vad
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Alessio Bazzica ea89f2a447 RNN VAD: pitch search optimizations (part 3) 
`ComputeSlidingFrameSquareEnergies()` which computes the energy of a
sliding 20 ms frame in the pitch buffer has been switched from backward
to forward.

The benchmark has shown a slight improvement (about +6x).

This change is not bit exact but all the tolerance tests still pass
except for one single case in `RnnVadTest,PitchSearchWithinTolerance`
for which the tolerance has been slightly increased. Note that the pitch
estimation is still bit-exact.

Benchmarked as follows:
```
out/release/modules_unittests \
  --gtest_filter=*RnnVadTest.DISABLED_RnnVadPerformance* \
  --gtest_also_run_disabled_tests --logs
```

Results:

      | baseline             | this CL
------+----------------------+------------------------
run 1 | 22.8319 +/- 1.46554  | 22.087 +/- 0.552932
      | 389.367x             | 402.499x
------+----------------------+------------------------
run 2 | 22.4286 +/- 0.726449 | 22.216 +/- 0.916222
      | 396.369x             | 400.162x
------+----------------------+------------------------
run 2 | 22.5688 +/- 0.831341 | 22.4902 +/- 1.04881
      | 393.906x             | 395.283x

Bug: webrtc:10480
Change-Id: I1fd54077a32e25e46196c8e18f003cd0ffd503e1
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/191703
Commit-Queue: Alessio Bazzica <alessiob@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32572}
2020-11-10 10:18:58 +00:00
..
auto_correlation_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
auto_correlation.cc
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
auto_correlation.h
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
BUILD.gn
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
common.cc
Refactor cpu_features_wrapper.h functions from C to C++.
2020-09-07 08:44:24 +00:00
common.h
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
DEPS
Reland "Reland "AGC2 RNN VAD: Recurrent Neural Network impl""
2018-05-07 11:13:14 +00:00
features_extraction_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
features_extraction.cc
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
features_extraction.h
RNN VAD: pitch search optimizations (part 1)
2020-11-09 16:12:10 +00:00
lp_residual_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
lp_residual.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
lp_residual.h
RNN VAD: LP residual optimized (part 4)
2020-10-26 12:04:46 +00:00
pitch_search_internal_unittest.cc
RNN VAD: pitch search optimizations (part 3)
2020-11-10 10:18:58 +00:00
pitch_search_internal.cc
RNN VAD: pitch search optimizations (part 3)
2020-11-10 10:18:58 +00:00
pitch_search_internal.h
RNN VAD: pitch search optimizations (part 3)
2020-11-10 10:18:58 +00:00
pitch_search_unittest.cc
RNN VAD: pitch search optimizations (part 3)
2020-11-10 10:18:58 +00:00
pitch_search.cc
RNN VAD: pitch search optimizations (part 2)
2020-11-10 00:18:46 +00:00
pitch_search.h
RNN VAD: pitch search optimizations (part 2)
2020-11-10 00:18:46 +00:00
ring_buffer_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
ring_buffer.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
rnn_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
rnn_vad_tool.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
rnn_vad_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
rnn.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
rnn.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
sequence_buffer_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
sequence_buffer.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features_internal_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features_internal.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features_internal.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
spectral_features.h
RNN VAD: Switch to PFFFT
2019-04-10 09:54:54 +00:00
symmetric_matrix_buffer_unittest.cc
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
symmetric_matrix_buffer.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00
test_utils.cc
RNN VAD: pitch search optimizations (part 3)
2020-11-10 10:18:58 +00:00
test_utils.h
AGC2 RNN VAD size_t -> int
2020-10-29 21:15:50 +00:00