From 87b4c8a9d9654eec78e8f3e58995d61e6ad98b04 Mon Sep 17 00:00:00 2001
From: Paul Gilbert
Date: Sat, 6 Aug 2016 21:55:19 -0400
Subject: TITANIC: Added more sound manager functionality

---
 engines/titanic/core/game_object.cpp            |  20 ++--
 engines/titanic/core/game_object.h              |  13 ++-
 engines/titanic/game/computer_screen.cpp        |   6 +-
 engines/titanic/sound/proximity.cpp             |   2 +-
 engines/titanic/sound/proximity.h               |   2 +-
 engines/titanic/sound/qmixer.cpp                |   9 ++
 engines/titanic/sound/qmixer.h                  |  10 ++
 engines/titanic/sound/sound.cpp                 |  21 ++--
 engines/titanic/sound/sound.h                   |  27 ++++-
 engines/titanic/sound/sound_manager.cpp         | 132 +++++++++++++++++-------
 engines/titanic/sound/sound_manager.h           |  64 ++++++++----
 engines/titanic/sound/wave_file.cpp             |  16 +++
 engines/titanic/sound/wave_file.h               |  16 ++-
 engines/titanic/true_talk/true_talk_manager.cpp |  14 +--
 14 files changed, 264 insertions(+), 88 deletions(-)

diff --git a/engines/titanic/core/game_object.cpp b/engines/titanic/core/game_object.cpp
index a366f7f336..6cd9db7056 100644
--- a/engines/titanic/core/game_object.cpp
+++ b/engines/titanic/core/game_object.cpp
@@ -38,9 +38,11 @@ namespace Titanic {
 EMPTY_MESSAGE_MAP(CGameObject, CNamedItem);
 
 CCreditText *CGameObject::_credits;
+int CGameObject::_soundHandles[3];
 
 void CGameObject::init() {
 	_credits = nullptr;
+	_soundHandles[0] = _soundHandles[1] = _soundHandles[2] = -1;
 }
 
 void CGameObject::deinit() {
@@ -439,11 +441,11 @@ void CGameObject::soundFn2(const CString &resName, int v1, int v2, int v3, int h
 	warning("TODO: CGameObject::soundFn2");
 }
 
-void CGameObject::soundFn3(int handle, int val2, int val3) {
+void CGameObject::setSoundVolume(uint handle, uint percent, uint seconds) {
 	if (handle != 0 && handle != -1) {
 		CGameManager *gameManager = getGameManager();
 		if (gameManager)
-			return gameManager->_sound.fn3(handle, val2, val3);
+			return gameManager->_sound.setVolume(handle, percent, seconds);
 	}
 }
 
@@ -456,7 +458,7 @@ void CGameObject::soundFn5(int v1, int v2, int v3) {
 }
 
 void CGameObject::sound8(bool flag) const {
-	getGameManager()->_sound.managerProc8(flag ? 3 : 0);
+	getGameManager()->_sound.stopChannel(flag ? 3 : 0);
 }
 
 void CGameObject::setVisible(bool val) {
@@ -660,14 +662,16 @@ int CGameObject::playSound(const CString &name, CProximity &prox) {
 	return 0;
 }
 
-void CGameObject::stopSound(int handle, int val2) {
+void CGameObject::stopSound(int handle, uint seconds) {
 	if (handle != 0 && handle != -1) {
 		CGameManager *gameManager = getGameManager();
 		if (gameManager) {
-			if (val2)
-				gameManager->_sound.fn3(handle, 0, val2);
-			else
-				gameManager->_sound.fn2(handle);
+			if (seconds) {
+				gameManager->_sound.setVolume(handle, 0, seconds);
+				gameManager->_sound.setCanFree(handle);
+			} else {
+				gameManager->_sound.stopSound(handle);
+			}
 		}
 	}
 }
diff --git a/engines/titanic/core/game_object.h b/engines/titanic/core/game_object.h
index e5ee22a8d5..7bc5d156fc 100644
--- a/engines/titanic/core/game_object.h
+++ b/engines/titanic/core/game_object.h
@@ -53,6 +53,7 @@ class CGameObject : public CNamedItem {
 	DECLARE_MESSAGE_MAP;
 private:
 	static CCreditText *_credits;
+	static int _soundHandles[3];
 private:
 	/**
 	 * Load a visual resource for the object
@@ -192,8 +193,10 @@ protected:
 
 	/**
 	 * Stop a sound
+	 * @param handle	Sound handle
+	 * @param seconds	Optional number of seconds to transition sound off
 	 */
-	void stopSound(int handle, int val2 = 0);
+	void stopSound(int handle, uint seconds = 0);
 
 	/**
 	 * Returns true if a sound with the specified handle is active
@@ -202,7 +205,13 @@ protected:
 
 	void soundFn2(const CString &resName, int v1, int v2, int v3, int handleIndex);
 
-	void soundFn3(int handle, int val2, int val3);
+	/**
+	 * Sets the volume for a sound
+	 * @param handle	Sound handle
+	 * @param volume	Volume percentage (0 to 100)
+	 * @param seconds	Number of seconds to transition to the new volume
+	 */
+	void setSoundVolume(uint handle, uint percent, uint seconds);
 
 	void soundFn4(int v1, int v2, int v3);
 
diff --git a/engines/titanic/game/computer_screen.cpp b/engines/titanic/game/computer_screen.cpp
index fd56737b01..3e5172219d 100644
--- a/engines/titanic/game/computer_screen.cpp
+++ b/engines/titanic/game/computer_screen.cpp
@@ -112,7 +112,7 @@ bool CComputerScreen::TimerMsg(CTimerMsg *msg) {
 		stopSound(handle);
 
 		playSound("y#662.wav");
-		soundFn3(handle, 10, 2);
+		setSoundVolume(handle, 10, 2);
 		playClip(392, 450);
 		startTalking("Doorbot", 0x3611A);
 		sleep(8000);
@@ -120,10 +120,10 @@ bool CComputerScreen::TimerMsg(CTimerMsg *msg) {
 		playClip(450, 492);
 		startTalking("Doorbot", 0x36121);
 		playClip(492, 522);
-		soundFn3(handle, 30, 2);
+		setSoundVolume(handle, 30, 2);
 
 		playClip(523, 540);
-		soundFn3(handle, 0, 1);
+		setSoundVolume(handle, 0, 1);
 
 		playClip(541, 551);
 		stopSound(handle);
diff --git a/engines/titanic/sound/proximity.cpp b/engines/titanic/sound/proximity.cpp
index dd1f9a4b7a..ce91a0770f 100644
--- a/engines/titanic/sound/proximity.cpp
+++ b/engines/titanic/sound/proximity.cpp
@@ -27,7 +27,7 @@ namespace Titanic {
 
 CProximity::CProximity() : _field4(0), _channelVolume(100), _fieldC(0),
 		_soundHandle((uint)-1), _field14(0), _frequencyMultiplier(0.0), _field1C(1.875),
-		_repeated(false), _field24(10), _field28(0), _azimuth(0.0),
+		_repeated(false), _channel(10), _field28(0), _azimuth(0.0),
 		_range(0.5), _elevation(0), _posX(0.0), _posY(0.0), _posZ(0.0),
 		_hasVelocity(false), _velocityX(0), _velocityY(0), _velocityZ(0),
 		_field54(0), _field58(0), _field5C(0), _field60(0), _endTalkerFn(nullptr),
diff --git a/engines/titanic/sound/proximity.h b/engines/titanic/sound/proximity.h
index afec3a7069..d8eee4d9e5 100644
--- a/engines/titanic/sound/proximity.h
+++ b/engines/titanic/sound/proximity.h
@@ -41,7 +41,7 @@ public:
 	double _frequencyMultiplier;
 	double _field1C;
 	bool _repeated;
-	int _field24;
+	int _channel;
 	int _field28;
 	double _azimuth;
 	double _range;
diff --git a/engines/titanic/sound/qmixer.cpp b/engines/titanic/sound/qmixer.cpp
index 5ece37a579..da707c9527 100644
--- a/engines/titanic/sound/qmixer.cpp
+++ b/engines/titanic/sound/qmixer.cpp
@@ -99,4 +99,13 @@ int QMixer::qsWaveMixPlayEx(int iChannel, uint flags, CWaveFile *mixWave, int lo
 	return 0;
 }
 
+bool QMixer::qsWaveMixIsChannelDone(int iChannel) const {
+	// Not currently implemented in ScummVM
+	return true;
+}
+
+void QMixer::qsWaveMixPump() {
+	// TODO: Handle checking for done sounds, and calling their end functions
+}
+
 } // End of namespace Titanic z
diff --git a/engines/titanic/sound/qmixer.h b/engines/titanic/sound/qmixer.h
index 948e91979b..fa4604cd2e 100644
--- a/engines/titanic/sound/qmixer.h
+++ b/engines/titanic/sound/qmixer.h
@@ -275,6 +275,16 @@ public:
 	 * @param params		Playback parameter data
 	 */
 	int qsWaveMixPlayEx(int iChannel, uint flags, CWaveFile *waveFile, int loops, const QMIXPLAYPARAMS &params);
+
+	/**
+	 * Returns true if there are no more buffers playing or queued on the channel
+	 */
+	bool qsWaveMixIsChannelDone(int iChannel) const;
+
+	/**
+	 * Handles regularly updating the mixer
+	 */
+	void qsWaveMixPump();
 };
 
 } // End of namespace Titanic
diff --git a/engines/titanic/sound/sound.cpp b/engines/titanic/sound/sound.cpp
index b796ba5595..e499bd5b78 100644
--- a/engines/titanic/sound/sound.cpp
+++ b/engines/titanic/sound/sound.cpp
@@ -62,18 +62,18 @@ bool CSound::isActive(int handle) const {
 	return false;
 }
 
-void CSound::fn2(int handle) {
-	warning("TODO: CSound::fn3");
-}
-
-void CSound::fn3(int handle, int val2, int val3) {
-	warning("TODO: CSound::fn3");
+void CSound::setVolume(uint handle, uint volume, uint seconds) {
+	_soundManager.setVolume(handle, volume, seconds);
 }
 
 void CSound::fn4(CWaveFile *waveFile, int val) {
 	// TODO
 }
 
+void CSound::stopChannel(int channel) {
+	_soundManager.stopChannel(channel);
+}
+
 void CSound::checkSounds() {
 	for (CSoundItemList::iterator i = _sounds.begin(); i != _sounds.end(); ++i) {
 		CSoundItem *soundItem = *i;
@@ -195,4 +195,13 @@ int CSound::playSpeech(CDialogueFile *dialogueFile, int speechId, CProximity &pr
 	return _soundManager.playSound(*waveFile, prox);
 }
 
+void CSound::stopSound(uint handle) {
+	_soundManager.stopSound(handle);
+}
+
+void CSound::setCanFree(int handle) {
+	if (handle != 0 && handle != -1)
+		_soundManager.setCanFree(handle);
+}
+
 } // End of namespace Titanic
diff --git a/engines/titanic/sound/sound.h b/engines/titanic/sound/sound.h
index bb2525a7c3..34ef234f2a 100644
--- a/engines/titanic/sound/sound.h
+++ b/engines/titanic/sound/sound.h
@@ -117,11 +117,20 @@ public:
 	 */
 	bool isActive(int handle) const;
 
-	void fn2(int handle);
-	void fn3(int handle, int val2, int val3);
+	/**
+	 * Sets the volume for a sound
+	 * @param handle	Sound handle
+	 * @param volume	Volume percentage (0 to 100)
+	 * @param seconds	Number of seconds to transition to the new volume
+	 */
+	void setVolume(uint handle, uint volume, uint seconds);
+
 	void fn4(CWaveFile *waveFile, int val);
-		
-	void managerProc8(int v) { _soundManager.proc8(v); }
+
+	/**
+	 * Stops any sounds attached to a given channel
+	 */
+	void stopChannel(int channel);
 
 	/**
 	 * Loads a TrueTalk dialogue
@@ -158,6 +167,16 @@ public:
 	 * Play a sound
 	 */
 	int playSound(const CString &name, CProximity &prox);
+
+	/**
+	 * Stop a sound
+	 */
+	void stopSound(uint handle);
+
+	/**
+	 * Flags that a sound can be freed if a timeout is set
+	 */
+	void setCanFree(int handle);
 };
 
 } // End of namespace Titanic
diff --git a/engines/titanic/sound/sound_manager.cpp b/engines/titanic/sound/sound_manager.cpp
index cb65a71631..2b5e137a5a 100644
--- a/engines/titanic/sound/sound_manager.cpp
+++ b/engines/titanic/sound/sound_manager.cpp
@@ -76,6 +76,16 @@ bool QSoundManagerSounds::contains(const CWaveFile *waveFile) const {
 	return false;
 }
 
+/*------------------------------------------------------------------------*/
+
+void QSoundManager::Slot::clear() {
+	_waveFile = nullptr;
+	_isTimed = false;
+	_ticks = 0;
+	_channel = -1;
+	_handle = 0;
+	_val3 = 0;
+}
 
 /*------------------------------------------------------------------------*/
 
@@ -108,12 +118,19 @@ CWaveFile *QSoundManager::loadSound(const CString &name) {
 }
 
 CWaveFile *QSoundManager::loadSpeech(CDialogueFile *dialogueFile, int speechId) {
-	warning("TODO");
-	return nullptr;
+	CWaveFile *waveFile = new CWaveFile();
+
+	// Try to load the specified sound
+	if (!waveFile->loadSpeech(dialogueFile, speechId)) {
+		delete waveFile;
+		return nullptr;
+	}
+
+	return waveFile;
 }
 
 int QSoundManager::proc5() const {
-	warning("TODO");
+	error("TODO");
 	return 0;
 }
 
@@ -129,7 +146,7 @@ int QSoundManager::playSound(CWaveFile &waveFile, CProximity &prox) {
 		}
 	}
 
-	if (channel >= 0 || (channel = flushChannels(prox._field24)) != -1) {
+	if (channel >= 0 || (channel = resetChannel(prox._channel)) != -1) {
 		return playWave(&waveFile, channel, flags, prox);
 	}
 
@@ -137,17 +154,45 @@ int QSoundManager::playSound(CWaveFile &waveFile, CProximity &prox) {
 }
 
 void QSoundManager::stopSound(uint handle) {
-	warning("TODO");
+	resetChannel(10);
+
+	for (uint idx = 0; idx < _slots.size(); ++idx) {
+		Slot &slot = _slots[idx];
+		if (slot._handle == handle) {
+			qsWaveMixFlushChannel(slot._channel);
+			_sounds.flushChannel(slot._channel);
+			resetChannel(10);
+		}
+	}
 }
 
-void QSoundManager::proc8(int v) {
-	warning("TODO");
+void QSoundManager::stopChannel(int channel) {
+	int endChannel;
+	switch (channel) {
+	case 0:
+	case 3:
+		endChannel = channel + 3;
+		break;
+	case 6:
+		endChannel = 10;
+		break;
+	case 10:
+		endChannel = 48;
+		break;
+	default:
+		return;
+	}
+
+	for (; channel < endChannel; ++channel) {
+		qsWaveMixFlushChannel(channel);
+		_sounds.flushChannel(channel);
+	}
 }
 
-void QSoundManager::proc9(uint handle) {
+void QSoundManager::setCanFree(uint handle) {
 	for (uint idx = 0; idx < _slots.size(); ++idx) {
 		if (_slots[idx]._handle == handle)
-			_slots[idx]._val2 = 1;
+			_slots[idx]._isTimed = true;
 	}
 }
 
@@ -156,12 +201,46 @@ void QSoundManager::stopAllChannels() {
 
 	for (int idx = 0; idx < 16; ++idx)
 		_sounds.flushChannel(idx);
-	flushChannels(10);
+	resetChannel(10);
 }
 
-int QSoundManager::flushChannels(int iChannel) {
-	// TODO
-	return -1;
+int QSoundManager::resetChannel(int iChannel) {
+	int newChannel = -1;
+	int channelStart = 10;
+	int channelEnd = 16;
+
+	if (iChannel != 10) {
+		qsWaveMixFlushChannel(iChannel);
+		_sounds.flushChannel(iChannel);
+		channelStart = iChannel;
+		channelEnd = iChannel + 1;
+	} else {
+		uint ticks = g_vm->_events->getTicksCount();
+
+		for (uint idx = 0; idx < _slots.size(); ++idx) {
+			Slot &slot = _slots[idx];
+			if (slot._isTimed && slot._ticks && ticks > slot._ticks) {
+				qsWaveMixFlushChannel(slot._channel);
+				_sounds.flushChannel(slot._channel);
+			}
+		}
+	}
+
+	for (iChannel = channelStart; iChannel < channelEnd; ++iChannel) {
+		if (qsWaveMixIsChannelDone(iChannel)) {
+			// Scan through the slots, and reset any slot using the channel
+			for (uint idx = 0; idx < _slots.size(); ++idx) {
+				Slot &slot = _slots[idx];
+				if (slot._channel == iChannel)
+					slot.clear();
+			}
+
+			// Use the empty channel
+			newChannel = iChannel;
+		}
+	}
+
+	return newChannel;
 }
 
 void QSoundManager::setVolume(uint handle, uint volume, uint seconds) {
@@ -219,6 +298,10 @@ bool QSoundManager::isActive(const CWaveFile *waveFile) const {
 	return _sounds.contains(waveFile);
 }
 
+void QSoundManager::waveMixPump() {
+
+}
+
 uint QSoundManager::getLatency() const {
 	return LATENCY;
 }
@@ -317,29 +400,6 @@ void QSoundManager::soundFreed(Audio::SoundHandle &handle) {
 	qsWaveMixFreeWave(handle);
 }
 
-void QSoundManager::stopChannels(int channel) {
-	int endChannel;
-	switch (channel) {
-	case 0:
-	case 3:
-		endChannel = channel + 3;
-		break;
-	case 6:
-		endChannel = 10;
-		break;
-	case 10:
-		endChannel = 48;
-		break;
-	default:
-		return;
-	}
-
-	for (; channel < endChannel; ++channel) {
-		qsWaveMixFlushChannel(channel);
-		_sounds.flushChannel(channel);
-	}
-}
-
 void QSoundManager::updateVolume(int channel, uint panRate) {
 	uint volume = _channelsVolume[channel] * 327;
 
diff --git a/engines/titanic/sound/sound_manager.h b/engines/titanic/sound/sound_manager.h
index 7ad5c8f51a..91e1167195 100644
--- a/engines/titanic/sound/sound_manager.h
+++ b/engines/titanic/sound/sound_manager.h
@@ -72,7 +72,11 @@ public:
 	 */
 	virtual void stopSound(uint handle) = 0;
 
-	virtual void proc8(int v) = 0;
+	/**
+	 * Stops a designated range of channels
+	 */
+	virtual void stopChannel(int channel) = 0;
+
 	virtual void proc9(uint handle) {}
 
 	/**
@@ -118,8 +122,11 @@ public:
 	 */
 	virtual bool isActive(const CWaveFile *waveFile) const { return false; }
 
-	virtual int proc16() const { return 0; }
-	
+	/**
+	 * Handles regularly updating the mixer
+	 */
+	virtual void waveMixPump() = 0;
+
 	/**
 	 * Returns the movie latency
 	 */
@@ -175,7 +182,21 @@ public:
 	 */
 	virtual void postSave() {}
 	
-	virtual void proc29() {}
+	/**
+	 * Sets the position and orientation for the listener (player)
+	 */
+	virtual void setListenerPosition(double posX, double posY, double posZ,
+		double directionX, double directionY, double directionZ, bool stopSounds) {}
+
+	/**
+	 * Returns the music volume percent
+	 */
+	int getMusicVolume() const { return _musicPercent; }
+
+	/**
+	 * Returns the speech volume percent
+	 */
+	int getSpeechVolume() const { return _speechPercent; }
 
 	/**
 	 * Returns the parrot volume percent
@@ -226,12 +247,14 @@ public:
 class QSoundManager : public CSoundManager, public QMixer {
 	struct Slot {
 		CWaveFile *_waveFile;
-		uint _val2;
+		bool _isTimed;
 		uint _ticks;
 		int _channel;
 		uint _handle;
 		uint _val3;
-		Slot() : _waveFile(0), _val2(0), _ticks(0), _channel(0), _handle(0), _val3(0) {}
+
+		Slot() : _waveFile(0), _isTimed(0), _ticks(0), _channel(-1), _handle(0), _val3(0) {}
+		void clear();
 	};
 private:
 	QSoundManagerSounds _sounds;
@@ -239,11 +262,6 @@ private:
 	uint _channelsVolume[16];
 	int _channelsMode[16];
 private:
-	/**
-	 * Stops a designated range of channels
-	 */
-	void stopChannels(int channel);
-
 	/**
 	 * Updates the volume for a channel
 	 * @param channel	Channel to be update
@@ -272,9 +290,9 @@ private:
 	void setChannelVolume(int iChannel, uint volume, uint mode);
 
 	/**
-	 * Flushes channels
+	 * Resets the specified channel and returns a new free one
 	 */
-	int flushChannels(int iChannel);
+	int resetChannel(int iChannel);
 public:
 	int _field18;
 	int _field1C;
@@ -303,14 +321,21 @@ public:
 	 * Start playing a previously loaded sound resource
 	 */
 	virtual int playSound(CWaveFile &waveFile, CProximity &prox);
-	
+
 	/**
 	 * Stop playing the specified sound
 	 */
 	virtual void stopSound(uint handle);
 
-	virtual void proc8(int v);
-	virtual void proc9(uint handle);
+	/**
+	 * Stops a designated range of channels
+	 */
+	virtual void stopChannel(int channel);
+
+	/**
+	 * Flags that a sound can be freed if a timeout is set
+	 */
+	virtual void setCanFree(uint handle);
 
 	/**
 	 * Stops sounds on all playing channels
@@ -355,8 +380,11 @@ public:
 	 */
 	virtual bool isActive(const CWaveFile *waveFile) const;
 
-	virtual int proc16() const { return 1; }
-	
+	/**
+	 * Handles regularly updating the mixer
+	 */
+	virtual void waveMixPump();
+
 	/**
 	 * Returns the movie latency
 	 */
diff --git a/engines/titanic/sound/wave_file.cpp b/engines/titanic/sound/wave_file.cpp
index adbc41455d..827e2f5586 100644
--- a/engines/titanic/sound/wave_file.cpp
+++ b/engines/titanic/sound/wave_file.cpp
@@ -21,6 +21,7 @@
  */
 
 #include "audio/decoders/wave.h"
+#include "common/memstream.h"
 #include "titanic/sound/wave_file.h"
 #include "titanic/sound/sound_manager.h"
 #include "titanic/support/simple_file.h"
@@ -48,6 +49,21 @@ bool CWaveFile::loadSound(const CString &name) {
 
 	Common::SeekableReadStream *stream = file.readStream();
 	_stream = Audio::makeWAVStream(stream->readStream(stream->size()), DisposeAfterUse::YES);
+	_soundType = SOUND_SFX;
+	return true;
+}
+
+bool CWaveFile::loadSpeech(CDialogueFile *dialogueFile, int speechIndex) {
+	DialogueResource *res = dialogueFile->openWaveEntry(speechIndex);
+	if (!res)
+		return false;
+
+	byte *data = (byte *)malloc(res->_size);
+	dialogueFile->read(res, data, res->_size);
+
+	_stream = Audio::makeWAVStream(new Common::MemoryReadStream(data, res->_size, DisposeAfterUse::YES),
+		DisposeAfterUse::YES);
+	_soundType = SOUND_SPEECH;
 	return true;
 }
 
diff --git a/engines/titanic/sound/wave_file.h b/engines/titanic/sound/wave_file.h
index 7818c1386d..2644b6807a 100644
--- a/engines/titanic/sound/wave_file.h
+++ b/engines/titanic/sound/wave_file.h
@@ -26,19 +26,26 @@
 #include "audio/audiostream.h"
 #include "audio/mixer.h"
 #include "titanic/support/string.h"
+#include "titanic/true_talk/dialogue_file.h"
 
 namespace Titanic {
 
 class QSoundManager;
 
+enum SoundType {
+	SOUND_SFX = 0,
+	SOUND_SPEECH = 1
+};
+
 class CWaveFile {
 public:
 	QSoundManager *_owner;
 	Audio::AudioStream *_stream;
 	Audio::SoundHandle _soundHandle;
+	SoundType _soundType;
 public:
-	CWaveFile() : _owner(nullptr), _stream(nullptr) {}
-	CWaveFile(QSoundManager *owner) : _owner(owner), _stream(nullptr) {}
+	CWaveFile() : _owner(nullptr), _stream(nullptr), _soundType(SOUND_SFX) {}
+	CWaveFile(QSoundManager *owner) : _owner(owner), _stream(nullptr), _soundType(SOUND_SFX) {}
 	~CWaveFile();
 
 	int fn1();
@@ -48,6 +55,11 @@ public:
 	 */
 	bool loadSound(const CString &name);
 
+	/**
+	 * Tries to load speech from a specified dialogue file
+	 */
+	bool loadSpeech(CDialogueFile *dialogueFile, int speechIndex);
+
 	/**
 	 * Returns true if the wave file has data loaded
 	 */
diff --git a/engines/titanic/true_talk/true_talk_manager.cpp b/engines/titanic/true_talk/true_talk_manager.cpp
index 32fb06c6d8..82d443fcda 100644
--- a/engines/titanic/true_talk/true_talk_manager.cpp
+++ b/engines/titanic/true_talk/true_talk_manager.cpp
@@ -494,13 +494,13 @@ void CTrueTalkManager::playSpeech(TTtalker *talker, TTroomScript *roomScript, CV
 	// Setup proximities
 	CProximity p1, p2, p3;
 	if (isParrot) {
-		p1._field24 = 3;
-		p2._field24 = 5;
-		p3._field24 = 4;
+		p1._channel = 3;
+		p2._channel = 5;
+		p3._channel = 4;
 	} else {
-		p1._field24 = 0;
-		p2._field24 = 1;
-		p3._field24 = 2;
+		p1._channel = 0;
+		p2._channel = 1;
+		p3._channel = 2;
 	}
 
 	if (milli > 0) {
@@ -517,7 +517,7 @@ void CTrueTalkManager::playSpeech(TTtalker *talker, TTroomScript *roomScript, CV
 		p2._elevation = 0;
 	}
 
-	_gameManager->_sound.managerProc8(p1._field24);
+	_gameManager->_sound.stopChannel(p1._channel);
 	if (view) {
 		p1._field28 = 2;
 		view->getPosition(p1._posX, p1._posY, p1._posZ);
-- 
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