diff --git a/compile.sh b/compile.sh
new file mode 100755
index 0000000..d2faaf4
--- /dev/null
+++ b/compile.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+if [ $# -eq 0 ]; then
+    echo "No arguments supplied!"
+    echo "Possible Arguments: $0 [TARGET_XM32, TARGET_WING, TARGET_PC_SDL2]"
+    exit
+fi
+BUILD_TARGET=$1
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+BUILD_DIR="${ROOT_DIR}/build"
+
+LIB_EXT_DIR="${ROOT_DIR}/lib_ext"
+
+LVGL_DIR="${LIB_EXT_DIR}/lvgl"
+GLAZE_DIR="${LIB_EXT_DIR}/glaze"
+LIBARTNET_DIR="${LIB_EXT_DIR}/libartnet"
+DOCTEST_DIR="${LIB_EXT_DIR}/doctest"
+OSC_DIR="${LIB_EXT_DIR}/small-osc"
+
+mkdir -p "${BUILD_DIR}"
+
+# create folder if not present
+if [ ! -d "$LIB_EXT_DIR" ]; then
+    mkdir -p "$LIB_EXT_DIR"
+fi
+
+# acquire external libraries
+git clone --depth 1 --single-branch --branch v9.5.0 https://github.com/lvgl/lvgl.git ${LVGL_DIR} || git -C ${LVGL_DIR} reset --hard HEAD
+git clone --depth 1 --single-branch --branch v7.7.1 https://github.com/stephenberry/glaze.git ${GLAZE_DIR} || git -C ${GLAZE_DIR} reset --hard HEAD
+git clone --depth 1 --single-branch https://github.com/OpenLightingProject/libartnet.git ${LIBARTNET_DIR} || git -C ${LIBARTNET_DIR} reset --hard HEAD
+git clone --depth 1 --single-branch --branch v2.5.2 https://github.com/doctest/doctest.git ${DOCTEST_DIR} || git -C ${DOCTEST_DIR} reset --hard HEAD
+git clone --depth 1 --single-branch https://github.com/OpenMixerProject/SmallOSC.git ${OSC_DIR} || git -C ${OSC_DIR} reset --hard HEAD
+
+make ROOT_DIR=${ROOT_DIR} BUILD_TARGET=${BUILD_TARGET} -j$(nproc)
diff --git a/src/dsp1.cpp b/src/dsp1.cpp
index d6f303b..f14a1d4 100644
--- a/src/dsp1.cpp
+++ b/src/dsp1.cpp
@@ -107,19 +107,22 @@ void DSP1::SendChannelVolume(uint chanIndex)
     float volumeSub_pu;
 
     // check if current channel has an adjustable gain. If not, apply GAIN as TRIM
-    if (!ChannelHasAdjustableGain(chanIndex))
+    if (ChannelHasAdjustableGain(chanIndex))
     {
-        float trim = config->GetFloat(CHANNEL_GAIN, chanIndex);
-        float trim_pu = pow(10.0f, trim/20.0f);
-        volumeLR_pu = pow(10.0f, volumeLR/20.0f) * trim_pu;
-        volumeSub_pu = pow(10.0f, volumeSub/20.0f) * trim_pu;
-    }else{
         // apply digital gain to increase gain-resolution as hardware supports 2.5dB-steps "only"
         float volumeLR_new = CompensateGainAndVolume(config->GetFloat(CHANNEL_GAIN, chanIndex), volumeLR);
         float volumeSub_new = CompensateGainAndVolume(config->GetFloat(CHANNEL_GAIN, chanIndex), volumeSub);
         volumeLR_pu = pow(10.0f, volumeLR_new/20.0f);
         volumeSub_pu = pow(10.0f, volumeSub_new/20.0f);
     }
+    else
+    {
+        // GAIN as TRIM
+        float trim = config->GetFloat(CHANNEL_GAIN, chanIndex);
+        float trim_pu = pow(10.0f, trim/20.0f);
+        volumeLR_pu = pow(10.0f, volumeLR/20.0f) * trim_pu;
+        volumeSub_pu = pow(10.0f, volumeSub/20.0f) * trim_pu;
+    }
 
     // apply DCAs if enabled
     // loop through all DCA groups
diff --git a/src/main.cpp b/src/main.cpp
index 067bc0b..133d25a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -327,7 +327,7 @@ int main(int argc, char* argv[])
 		->configurable(false);
 	app->add_option("--samplerate", "Set Samplerate to 44100 or 48000 kHz")
 		->default_val<uint32_t>(48000)
-		->check(CLI::IsMember(new set<uint32_t>{41000, 48000}));
+		->check(CLI::IsMember(new set<uint32_t>{44100, 48000}));
 
 	// debugging commandline option	
 	app->add_flag("-b,--bodyless", state->bodyless, "Enables a special mode to run omc in a different enviroment than a X32 mixer.")
@@ -530,4 +530,4 @@ int main(int argc, char* argv[])
 	}
 
     exit(0);
-}
\ No newline at end of file
+}