Adjusted default chunk sizes to correctly support number of channels.

src/config.cpp

@@ -41,15 +41,22 @@ void CConfig::Load (void)
 	m_SoundDevice = m_Properties.GetString ("SoundDevice", "pwm");
 
 	m_nSampleRate = m_Properties.GetNumber ("SampleRate", 48000);
+	m_bQuadDAC8Chan = m_Properties.GetNumber ("QuadDAC8Chan", 0) != 0;
+	if (m_SoundDevice == "hdmi") {
+		m_nChunkSize = m_Properties.GetNumber ("ChunkSize", 384*6);
+	}
+	else
+	{
 #ifdef ARM_ALLOW_MULTI_CORE
-	m_nChunkSize = m_Properties.GetNumber ("ChunkSize", m_SoundDevice == "hdmi" ? 384*6 : 256);
+		m_nChunkSize = m_Properties.GetNumber ("ChunkSize", m_bQuadDAC8Chan ? 1024 : 256);  // 128 per channel
 #else
-	m_nChunkSize = m_Properties.GetNumber ("ChunkSize", m_SoundDevice == "hdmi" ? 384*6 : 1024);
+		m_nChunkSize = m_Properties.GetNumber ("ChunkSize", 1024);
 #endif
+	}
 	m_nDACI2CAddress = m_Properties.GetNumber ("DACI2CAddress", 0);
 	m_bChannelsSwapped = m_Properties.GetNumber ("ChannelsSwapped", 0) != 0;
 
-		unsigned newEngineType = m_Properties.GetNumber ("EngineType", 1);
+	unsigned newEngineType = m_Properties.GetNumber ("EngineType", 1);
 	if (newEngineType == 2) {
   		m_EngineType = MKI;
 	} else if (newEngineType == 3) {
@@ -85,7 +92,6 @@ void CConfig::Load (void)
 	m_bMIDIAutoVoiceDumpOnPC = m_Properties.GetNumber ("MIDIAutoVoiceDumpOnPC", 0) != 0;
 	m_bHeaderlessSysExVoices = m_Properties.GetNumber ("HeaderlessSysExVoices", 0) != 0;
 	m_bExpandPCAcrossBanks = m_Properties.GetNumber ("ExpandPCAcrossBanks", 1) != 0;
-	m_bQuadDAC8Chan = m_Properties.GetNumber ("QuadDAC8Chan", 0) != 0;
 
 	m_bLCDEnabled = m_Properties.GetNumber ("LCDEnabled", 0) != 0;
 	m_nLCDPinEnable = m_Properties.GetNumber ("LCDPinEnable", 4);

src/minidexed.cpp

@@ -279,7 +279,7 @@ bool CMiniDexed::Initialize (void)
 		Channels = 2;	// 16-bit Stereo
 	}
 #endif
-	if (!m_pSoundDevice->AllocateQueueFrames (Channels * m_pConfig->GetChunkSize ()))
+	if (!m_pSoundDevice->AllocateQueueFrames (m_pConfig->GetChunkSize () / Channels))
 	{
 		LOGERR ("Cannot allocate sound queue");