From 91cd6182d8647aa4ddee3abf8bd0bd8f741f1511 Mon Sep 17 00:00:00 2001
From: Kae <80987908+Novaenia@users.noreply.github.com>
Date: Sat, 15 Jul 2023 00:39:10 +1000
Subject: Fix mono

---
 source/frontend/StarVoice.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'source/frontend/StarVoice.cpp')

diff --git a/source/frontend/StarVoice.cpp b/source/frontend/StarVoice.cpp
index 210a509..f2bcbe2 100644
--- a/source/frontend/StarVoice.cpp
+++ b/source/frontend/StarVoice.cpp
@@ -380,7 +380,15 @@ bool Voice::receive(SpeakerPtr speaker, std::string_view view) {
 			{
 				MutexLocker lock(speaker->audioStream->mutex);
 				auto& samples = speaker->audioStream->samples;
-				samples.insert(samples.end(), decodeBuffer, decodeBuffer + decodedSamples);
+				if (mono) {
+					size_t prevSize = samples.size();
+					samples.resize(prevSize + (size_t)decodedSamples * 2);
+					int16_t* data = samples.data() + prevSize;
+					for (int i = 0; i != decodedSamples; ++i)
+						*data++ = *data++ = decodeBuffer[i];
+				}
+				else
+					samples.insert(samples.end(), decodeBuffer, decodeBuffer + decodedSamples);
 			}
 			playSpeaker(speaker, channels);
 		}
-- 
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