diff --git a/src/headers/switch-audio.hpp b/src/headers/switch-audio.hpp
index c881250f..7eeace18 100644
--- a/src/headers/switch-audio.hpp
+++ b/src/headers/switch-audio.hpp
@@ -1,5 +1,6 @@
 #pragma once
 #include <QSpinBox>
+#include <limits>
 
 #include "switch-generic.hpp"
 #include "volume-control.hpp"
@@ -20,7 +21,7 @@ struct AudioSwitch : virtual SceneSwitcherEntry {
 	double duration = 0;
 	bool ignoreInactiveSource = true;
 	unsigned int matchCount = 0;
-	float peak = -1;
+	float peak = -std::numeric_limits<float>::infinity();
 	obs_volmeter_t *volmeter = nullptr;
 
 	const char *getType() { return "audio"; }
diff --git a/src/switch-audio.cpp b/src/switch-audio.cpp
index f5177b26..a6ee7b28 100644
--- a/src/switch-audio.cpp
+++ b/src/switch-audio.cpp
@@ -257,7 +257,7 @@ void AudioSwitch::setVolumeLevel(void *data,
 	UNUSED_PARAMETER(inputPeak);
 	AudioSwitch *s = static_cast<AudioSwitch *>(data);
 
-	for (int i = 1; i < MAX_AUDIO_CHANNELS; i++) {
+	for (int i = 0; i < MAX_AUDIO_CHANNELS; i++) {
 		if (peak[i] > s->peak) {
 			s->peak = peak[i];
 		}