From ef37bbd8519e94f88812f3b3fd9e5b719b79ef84 Mon Sep 17 00:00:00 2001
From: Jared Boone <jboone@earfeast.com>
Date: Thu, 31 Dec 2015 10:08:41 -0800
Subject: [PATCH] Small FM squelch simplification.

---
 firmware/baseband/dsp_squelch.cpp | 2 +-
 firmware/baseband/dsp_squelch.hpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/firmware/baseband/dsp_squelch.cpp b/firmware/baseband/dsp_squelch.cpp
index 4cfe651ae..8047b388b 100644
--- a/firmware/baseband/dsp_squelch.cpp
+++ b/firmware/baseband/dsp_squelch.cpp
@@ -41,5 +41,5 @@ bool FMSquelch::execute(buffer_s16_t audio) {
 		}
 	}
 
-	return (max_squared < (threshold * threshold));
+	return (max_squared < threshold_squared);
 }
diff --git a/firmware/baseband/dsp_squelch.hpp b/firmware/baseband/dsp_squelch.hpp
index 37cf68a30..8d1923c6c 100644
--- a/firmware/baseband/dsp_squelch.hpp
+++ b/firmware/baseband/dsp_squelch.hpp
@@ -35,7 +35,7 @@ public:
 
 private:
 	static constexpr size_t N = 32;
-	static constexpr int16_t threshold = 3072;
+	static constexpr uint32_t threshold_squared = 8192 * 8192;
 
 	IIRBiquadFilter non_audio_hpf { non_audio_hpf_config };
 };