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-rw-r--r--src/GainControl.cpp13
1 files changed, 7 insertions, 6 deletions
diff --git a/src/GainControl.cpp b/src/GainControl.cpp
index e68ce99..f575133 100644
--- a/src/GainControl.cpp
+++ b/src/GainControl.cpp
@@ -368,7 +368,6 @@ float GainControl::computeGainMax(const complexf* in, size_t sizeIn)
float GainControl::computeGainVar(const complexf* in, size_t sizeIn)
{
- float gain;
complexf mean;
/* The variance calculation is a bit strange, because we
@@ -454,16 +453,18 @@ float GainControl::computeGainVar(const complexf* in, size_t sizeIn)
////////////////////////////////////////////////////////////////////////////
// Computing gain
////////////////////////////////////////////////////////////////////////////
+ float gain = var.real();
// gain = factor128 / max(real, imag)
- if (var.imag() > var.real()) {
- var.real() = var.imag();
+ if (var.imag() > gain) {
+ gain = var.imag();
}
- // Detect NULL
- if ((int)var.real() == 0) {
+
+ // Ignore zero variance samples and apply no gain
+ if ((int)gain == 0) {
gain = 1.0f;
}
else {
- gain = factor / var.real();
+ gain = factor / gain;
}
return gain;