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16 Commits

Author SHA1 Message Date
Alejandro Luebs
cb3f9bd9c0 Make the nonlinear beamformer steerable 
Depends on this CL: https://codereview.webrtc.org/1395453004/

R=andrew@webrtc.org

Review URL: https://codereview.webrtc.org/1394103003 .

Cr-Commit-Position: refs/heads/master@{#10458}
 2015-10-30 01:21:40 +00:00
bloch
2981945bcf Moved arrray_util include to beamformer.h 
Review URL: https://codereview.webrtc.org/1244813003

Cr-Commit-Position: refs/heads/master@{#9604}
 2015-07-20 20:22:27 +00:00
bloch
1adbacb19d Adding method IsInBeam to beamformer class. 
This was previously reviewed at:
https://webrtc-codereview.appspot.com/53729004/

Review URL: https://codereview.webrtc.org/1211613005

Cr-Commit-Position: refs/heads/master@{#9517}
 2015-06-29 23:15:23 +00:00
Michael Graczyk
dfa36058c9 Reparent Nonlinear beamformer under beamforming interface. 
R=aluebs@webrtc.org, andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/41269004

Cr-Commit-Position: refs/heads/master@{#8862}
 2015-03-25 23:37:33 +00:00
mgraczyk@chromium.org
0f663de2ec Rename Beamformer to NonlinearBeamformer. 
R=aluebs@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/42359004

Cr-Commit-Position: refs/heads/master@{#8710}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8710 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-03-13 00:14:18 +00:00
aluebs@webrtc.org
1d88394bcb Add support for arbitrary array geometries in Beamformer 
R=andrew@webrtc.org, mgraczyk@chromium.org

Review URL: https://webrtc-codereview.appspot.com/38299004

Cr-Commit-Position: refs/heads/master@{#8621}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8621 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-03-05 20:39:20 +00:00
aluebs@webrtc.org
3aca0b0b31 Add 48kHz support to Beamformer 
Doing something similar for the band 16-24kHz to what is done for the band 8-16kHz
Tested for 32kHz sample rate and the output is bitexact with how it was before this CL.

BUG=webrtc:3146
R=andrew@webrtc.org, kwiberg@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35159004

Cr-Commit-Position: refs/heads/master@{#8522}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8522 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-26 21:53:00 +00:00
kwiberg@webrtc.org
00b8f6b364 Use base/scoped_ptr.h; system_wrappers/interface/scoped_ptr.h is going away 
BUG=
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36229004

Cr-Commit-Position: refs/heads/master@{#8517}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8517 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-26 14:43:50 +00:00
aluebs@webrtc.org
92a19bcbd7 Simplify mask calculation 
There are only 2 things that prevent the output to be bit-exact:
* The zero initialization of the postfilter_mask_ and high_pass_postfilter_mask_, which only afects the first blocks.
* The re-tuning of the target presence estimation, since only the bins between low_average_start_bin_ and high_average_end_bin_ are of interest.
This latter was not taken into account before.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35139004

Cr-Commit-Position: refs/heads/master@{#8368}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8368 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-13 19:38:22 +00:00
aluebs@webrtc.org
5d608955cf Fix bug when there are no blocks in a chunk in Beamformer 
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/37119004

Cr-Commit-Position: refs/heads/master@{#8321}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8321 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-11 00:48:55 +00:00
aluebs@webrtc.org
b6856d2823 Apply mask smoothing in Beamformer 
This generates much more aggressive postfilter masks, which remove the interference and background noise better.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35089004

Cr-Commit-Position: refs/heads/master@{#8315}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8315 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-10 18:23:35 +00:00
aluebs@webrtc.org
2a44be93e8 Normalize delay-and-sum mask in Beamformer 
This normalization is done in the Matlab Code but was never ported to the C++ version.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/37919004

Cr-Commit-Position: refs/heads/master@{#8279}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8279 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-07 02:41:41 +00:00
aluebs@webrtc.org
799e667e9f Add high frequency correction to Beamformer 
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35989004

Cr-Commit-Position: refs/heads/master@{#8278}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8278 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-02-07 01:07:43 +00:00
aluebs@webrtc.org
d82f55d2a7 Only adapt AGC when the desired signal is present 
Take the 50% quantile of the mask and compare it to certain threshold to determine if the desired signal is present. A hold is applied to avoid fast switching between states.
is_signal_present_ has been plotted and looks as expected. The AGC adaptation sounds promising, specially for the cases when the speaker fades in and out from the beam direction.

R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/28329005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@8078 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-01-15 18:07:21 +00:00
aluebs@webrtc.org
fb7a039e9d Use array geometry in Beamformer 
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35559004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@8000 4adac7df-926f-26a2-2b94-8c16560cd09d
 2015-01-05 21:58:58 +00:00
aluebs@webrtc.org
0c39e91cc8 Merge beamformer 
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/34529004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7958 4adac7df-926f-26a2-2b94-8c16560cd09d
 2014-12-18 22:22:04 +00:00