Make the level compressor much slower.

diff --git a/mixer.cpp b/mixer.cpp
index d1e50f59c112197583467f26d452cc5747af6f6f..506af4aeabb95fa8d554cc32baf80dfe5c61b3ff 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -549,7 +549,7 @@ void Mixer::process_audio_one_frame()
        // Apply a level compressor to get the general level right.
        // Basically, if it's over about -40 dBFS, we squeeze it down to that level
        // (or more precisely, near it, since we don't use infinite ratio),
-       // then apply a makeup gain to get it to -12 dBFS. -12 dBFS is, of course,
+       // then apply a makeup gain to get it to -14 dBFS. -14 dBFS is, of course,
        // entirely arbitrary, but from practical tests with speech, it seems to
        // put ut around -23 LUFS, so it's a reasonable starting point for later use.
        //
@@ -557,9 +557,9 @@ void Mixer::process_audio_one_frame()
        // later in the chain.
        float threshold = 0.01f;   // -40 dBFS.
        float ratio = 20.0f;
-       float attack_time = 0.1f;
-       float release_time = 10.0f;
-       float makeup_gain = pow(10.0f, 28.0f / 20.0f);  // +28 dB takes us to -12 dBFS.
+       float attack_time = 0.5f;
+       float release_time = 20.0f;
+       float makeup_gain = pow(10.0f, 26.0f / 20.0f);  // +26 dB takes us to -14 dBFS.
        level_compressor.process(samples_out.data(), samples_out.size() / 2, threshold, ratio, attack_time, release_time, makeup_gain);
        last_gain_staging_db = 20.0 * log10(level_compressor.get_attenuation() * makeup_gain);