From a42041a3ae4c035288ea02e1c3de54726e566600 Mon Sep 17 00:00:00 2001
From: Victor Gaydov <victor@enise.org>
Date: Wed, 14 Aug 2024 00:33:23 +0400
Subject: [PATCH] gh-688: A bit more conservative defaults for jitter

---
 src/internal_modules/roc_audio/jitter_meter.cpp | 16 ++--------------
 src/internal_modules/roc_audio/jitter_meter.h   |  6 +++---
 src/internal_modules/roc_audio/latency_config.h |  2 +-
 3 files changed, 6 insertions(+), 18 deletions(-)

diff --git a/src/internal_modules/roc_audio/jitter_meter.cpp b/src/internal_modules/roc_audio/jitter_meter.cpp
index 5f6778628..824ab9e3a 100644
--- a/src/internal_modules/roc_audio/jitter_meter.cpp
+++ b/src/internal_modules/roc_audio/jitter_meter.cpp
@@ -13,23 +13,11 @@ namespace roc {
 namespace audio {
 
 bool JitterMeterConfig::deduce_defaults(audio::LatencyTunerProfile latency_profile) {
-    if (jitter_window == 0) {
-        if (latency_profile == audio::LatencyTunerProfile_Responsive) {
-            jitter_window = 10000;
-        } else {
-            jitter_window = 30000;
-        }
-    }
-
-    if (peak_quantile_window == 0) {
-        peak_quantile_window = jitter_window / 5;
-    }
-
     if (envelope_resistance_coeff == 0) {
         if (latency_profile == audio::LatencyTunerProfile_Responsive) {
-            envelope_resistance_coeff = 0.05;
+            envelope_resistance_coeff = 0.07;
         } else {
-            envelope_resistance_coeff = 0.1;
+            envelope_resistance_coeff = 0.10;
         }
     }
 
diff --git a/src/internal_modules/roc_audio/jitter_meter.h b/src/internal_modules/roc_audio/jitter_meter.h
index 1adb550e5..d17608f59 100644
--- a/src/internal_modules/roc_audio/jitter_meter.h
+++ b/src/internal_modules/roc_audio/jitter_meter.h
@@ -95,12 +95,12 @@ struct JitterMeterConfig {
     double peak_quantile_coeff;
 
     JitterMeterConfig()
-        : jitter_window(0)
+        : jitter_window(50000)
         , envelope_smoothing_window_len(10)
         , envelope_resistance_exponent(6)
         , envelope_resistance_coeff(0)
-        , peak_quantile_window(0)
-        , peak_quantile_coeff(0.90) {
+        , peak_quantile_window(10000)
+        , peak_quantile_coeff(0.92) {
     }
 
     //! Automatically fill missing settings.
diff --git a/src/internal_modules/roc_audio/latency_config.h b/src/internal_modules/roc_audio/latency_config.h
index bc7146157..e6fb46529 100644
--- a/src/internal_modules/roc_audio/latency_config.h
+++ b/src/internal_modules/roc_audio/latency_config.h
@@ -181,7 +181,7 @@ struct LatencyConfig {
         , starting_timeout(5 * core::Second)
         , cooldown_dec_timeout(5 * core::Second)
         , cooldown_inc_timeout(15 * core::Second)
-        , max_jitter_overhead(1.15f)
+        , max_jitter_overhead(1.2f)
         , mean_jitter_overhead(3.00f) {
     }