log10 + contrast tweaks

2026-03-03 06:54:17 +01:00 · 2015-06-24 21:19:44 +01:00
parent 2335fcd12e
commit a9152be753
2 changed files with 2 additions and 2 deletions
--- a/inputsource.cpp
+++ b/inputsource.cpp
@@ -63,7 +63,7 @@ void InputSource::GetViewport(float *dest, int x, int y, int width, int height,
            float re = m_fftw_out[k][0];
            float im = m_fftw_out[k][1];
            float mag = sqrt(re * re + im * im) / m_fft_size;
-            float magdb = 10 * log(mag);
+            float magdb = 10 * log2(mag) / log2(10);
            *dest = magdb;
            dest++;
        }