Fix normalization of noise estimate in NoiseSuppressor

webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc

Index: webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
diff --git a/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc b/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
index b459c39b692c0836d6ff3a0b1964c61f85774d3f..64ccfd96efc6f3a3980ca028725f6bace9be8a71 100644
--- a/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
+++ b/webrtc/modules/audio_processing/intelligibility/test/intelligibility_proc.cc
@@ -56,7 +56,6 @@ void void_main(int argc, char* argv[]) {
                              noise_file.num_channels());
   while (in_file.ReadSamples(in.size(), in.data()) == in.size() &&
          noise_file.ReadSamples(noise.size(), noise.data()) == noise.size()) {
-    FloatS16ToFloat(in.data(), in.size(), in.data());

[peah-webrtc, 2016/03/21 12:25:48]

Is this change due to that the conversion was redundant?

[aluebs-webrtc, 2016/03/29 23:15:15]

This conversion is not present in the APM, so that is why the normalization was
done wrong. Now the audioproc_float and  intelligibility_proc have similar
results.

     FloatS16ToFloat(noise.data(), noise.size(), noise.data());
     Deinterleave(in.data(), in_buf.num_frames(), in_buf.num_channels(),
                  in_buf.channels());
@@ -70,7 +69,6 @@ void void_main(int argc, char* argv[]) {
                            in_file.num_channels());
     Interleave(in_buf.channels(), in_buf.num_frames(), in_buf.num_channels(),
                in.data());
-    FloatToFloatS16(in.data(), in.size(), in.data());
     out_file.WriteSamples(in.data(), in.size());
   }
 }