From 2ce87e8cce1ab8041afb78cd9c316fd914410ede Mon Sep 17 00:00:00 2001
From: Kai <kai@local>
Date: Fri, 13 Feb 2026 16:20:44 +0100
Subject: [PATCH] Set default mic gain to 2.0 and remove loopback monitor gain

---
 include/secrets.example.h | 6 ++----
 src/main.cpp              | 6 +-----
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/include/secrets.example.h b/include/secrets.example.h
index 23c5f5f..f129e1a 100644
--- a/include/secrets.example.h
+++ b/include/secrets.example.h
@@ -27,9 +27,7 @@ static constexpr bool EVS_SERIAL_COMMAND_ECHO = true;
 static constexpr bool EVS_MIC_USE_RIGHT_CHANNEL = false;
 // 24-bit sample to 16-bit conversion shift. Start with 8.
 static constexpr int EVS_MIC_S24_TO_S16_SHIFT = 8;
-// Digital mic gain (avoid clipping). Typical 0.2 .. 0.8.
-static constexpr float EVS_MIC_GAIN = 0.35f;
-// Extra gain only for local loopback monitor path.
-static constexpr float EVS_LOOPBACK_MONITOR_GAIN = 0.35f;
+// Digital mic gain (project default).
+static constexpr float EVS_MIC_GAIN = 2.0f;
 
 #endif  // EVS_SECRETS_H
diff --git a/src/main.cpp b/src/main.cpp
index b699f54..92455b0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,7 +11,6 @@ static constexpr bool kSerialCommandEcho = EVS_SERIAL_COMMAND_ECHO;
 static constexpr bool kMicUseRightChannel = EVS_MIC_USE_RIGHT_CHANNEL;
 static constexpr int kMicS24ToS16Shift = EVS_MIC_S24_TO_S16_SHIFT;
 static constexpr float kMicGain = EVS_MIC_GAIN;
-static constexpr float kLoopbackMonitorGain = EVS_LOOPBACK_MONITOR_GAIN;
 
 // ---------------------------
 // Project config
@@ -447,10 +446,7 @@ void loop() {
     publishMicTelemetryIfDue(pcm16, sampleCount);
   } else if (g_mode == DeviceMode::LocalLoopback) {
     for (size_t i = 0; i < sampleCount; ++i) {
-      float v = (float)pcm16[i] * kLoopbackMonitorGain;
-      if (v > 32767.0f) v = 32767.0f;
-      if (v < -32768.0f) v = -32768.0f;
-      enqueuePcmSample((int16_t)v);
+      enqueuePcmSample(pcm16[i]);
     }
   } else {
     // idle