diff --git a/include/audio/aseq.h b/include/audio/aseq.h
index 1c66a3a2c3..ac600738b0 100644
--- a/include/audio/aseq.h
+++ b/include/audio/aseq.h
@@ -52,6 +52,8 @@
 #ifndef ASEQ_H
 #define ASEQ_H
 
+#include "versions.h"
+
 /**
  *  IO Ports
  */
diff --git a/include/sequence.h b/include/sequence.h
index c895cd980e..d405e32362 100644
--- a/include/sequence.h
+++ b/include/sequence.h
@@ -2,6 +2,7 @@
 #define SEQUENCE_H
 
 #include "ultra64.h"
+#include "versions.h"
 
 #define DEFINE_SEQUENCE(_0, seqId, _2, _3, _4) seqId,
 #define DEFINE_SEQUENCE_PTR(_0, seqId, _2, _3, _4) seqId,
diff --git a/include/sfx.h b/include/sfx.h
index a55ca01885..4d90cf5a6a 100644
--- a/include/sfx.h
+++ b/include/sfx.h
@@ -2,6 +2,7 @@
 #define SFX_H
 
 #include "ultra64.h"
+#include "versions.h"
 #include "z64math.h"
 
 typedef enum SfxBankType {
diff --git a/include/tables/sequence_table.h b/include/tables/sequence_table.h
index d813cfb0da..3e8f13e5f9 100644
--- a/include/tables/sequence_table.h
+++ b/include/tables/sequence_table.h
@@ -15,10 +15,10 @@
  *    - Argument 3: Cache load policy for the sequence (AudioCacheLoadType)
  *    - Argument 4: Sequence flags
  */
-#if PLATFORM_N64
-#define SEQ_0_FLAGS     SEQ_FLAG_FANFARE | SEQ_FLAG_ENEMY
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 #define SEQ_0_FLAGS     SEQ_FLAG_FANFARE
+#else
+#define SEQ_0_FLAGS     SEQ_FLAG_FANFARE | SEQ_FLAG_ENEMY
 #endif
 DEFINE_SEQUENCE    (Sequence_0,         NA_BGM_GENERAL_SFX,      MEDIUM_CART, CACHE_LOAD_PERMANENT,  SEQ_0_FLAGS                            ) // general_sfx
 DEFINE_SEQUENCE    (Sequence_1,         NA_BGM_NATURE_AMBIENCE,  MEDIUM_CART, CACHE_LOAD_TEMPORARY,  SEQ_FLAG_ENEMY                         ) // nature_ambience
diff --git a/include/tables/sfx/enemybank_table.h b/include/tables/sfx/enemybank_table.h
index ae2c3b7148..de741033e8 100644
--- a/include/tables/sfx/enemybank_table.h
+++ b/include/tables/sfx/enemybank_table.h
@@ -334,10 +334,10 @@
 /* 0x3942 */ DEFINE_SFX(CHAN_4EA8, NA_SE_EN_BALINADE_THUNDER, 0x34, 3, 0, 0)
 /* 0x3943 */ DEFINE_SFX(CHAN_415D, NA_SE_EN_BALINADE_BL_SPARK, 0x20, 2, 0, 0)
 /* 0x3944 */ DEFINE_SFX(CHAN_4184, NA_SE_EN_BALINADE_BL_DEAD, 0x34, 3, 0, 0)
-#if PLATFORM_N64
-/* 0x3945 */ DEFINE_SFX(CHAN_4E86, NA_SE_EN_BALINADE_BREAK2, 0x34, 3, 0, 0)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 /* 0x3945 */ DEFINE_SFX(CHAN_4E86, NA_SE_EN_BALINADE_BREAK2, 0x30, 3, 0, 0)
+#else
+/* 0x3945 */ DEFINE_SFX(CHAN_4E86, NA_SE_EN_BALINADE_BREAK2, 0x34, 3, 0, 0)
 #endif
 /* 0x3946 */ DEFINE_SFX(CHAN_425D, NA_SE_EN_BALINADE_HIT_RINK, 0x38, 3, 0, 0)
 /* 0x3947 */ DEFINE_SFX(CHAN_3AF4, NA_SE_EN_GANON_WAVE_GND, 0x20, 3, 0, 0)
diff --git a/include/tables/sfx/environmentbank_table.h b/include/tables/sfx/environmentbank_table.h
index 08bd08de7e..a2ecf23c0d 100644
--- a/include/tables/sfx/environmentbank_table.h
+++ b/include/tables/sfx/environmentbank_table.h
@@ -43,10 +43,10 @@
 /* 0x281F */ DEFINE_SFX(CHAN_1B61, NA_SE_EV_TBOX_UNLOCK, 0x30, 0, 0, 0)
 /* 0x2820 */ DEFINE_SFX(CHAN_1B7D, NA_SE_EV_TBOX_OPEN, 0x30, 0, 0, 0)
 /* 0x2821 */ DEFINE_SFX(CHAN_1B93, NA_SE_SY_TIMER, 0xA0, 0, 0, SFX_FLAG_13 | SFX_FLAG_3)
-#if PLATFORM_N64
-/* 0x2822 */ DEFINE_SFX(CHAN_1BE9, NA_SE_EV_FLAME_IGNITION, 0x2D, 2, 0, 0)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 /* 0x2822 */ DEFINE_SFX(CHAN_1BE9, NA_SE_EV_FLAME_IGNITION, 0x20, 2, 0, 0)
+#else
+/* 0x2822 */ DEFINE_SFX(CHAN_1BE9, NA_SE_EV_FLAME_IGNITION, 0x2D, 2, 0, 0)
 #endif
 /* 0x2823 */ DEFINE_SFX(CHAN_1BF9, NA_SE_EV_SPEAR_HIT, 0x30, 0, 0, 0)
 /* 0x2824 */ DEFINE_SFX(CHAN_1C14, NA_SE_EV_ELEVATOR_MOVE, 0x30, 0, 0, SFX_FLAG_11)
@@ -108,10 +108,10 @@
 /* 0x285C */ DEFINE_SFX(CHAN_2374, NA_SE_EV_BLOCKSINK, 0x30, 2, 0, 0)
 /* 0x285D */ DEFINE_SFX(CHAN_2389, NA_SE_EV_CROWD, 0x30, 0, 0, SFX_FLAG_13 | SFX_FLAG_12 | SFX_FLAG_11)
 /* 0x285E */ DEFINE_SFX(CHAN_23A6, NA_SE_EV_WATER_LEVEL_DOWN, 0x30, 0, 0, 0)
-#if PLATFORM_N64
-/* 0x285F */ DEFINE_SFX(CHAN_23D5, NA_SE_EV_NAVY_VANISH, 0x2C, 0, 0, 0)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 /* 0x285F */ DEFINE_SFX(CHAN_23D5, NA_SE_EV_NAVY_VANISH, 0x30, 0, 0, 0)
+#else
+/* 0x285F */ DEFINE_SFX(CHAN_23D5, NA_SE_EV_NAVY_VANISH, 0x2C, 0, 0, 0)
 #endif
 /* 0x2860 */ DEFINE_SFX(CHAN_23EB, NA_SE_EV_LADDER_DOUND, 0x30, 3, 0, 0)
 /* 0x2861 */ DEFINE_SFX(CHAN_2401, NA_SE_EV_WEB_VIBRATION, 0x30, 0, 0, 0)
diff --git a/include/tables/sfx/itembank_table.h b/include/tables/sfx/itembank_table.h
index 53f2ffadb2..ed2001a557 100644
--- a/include/tables/sfx/itembank_table.h
+++ b/include/tables/sfx/itembank_table.h
@@ -28,10 +28,10 @@
 /* 0x1810 */ DEFINE_SFX(CHAN_10A2, NA_SE_IT_BOOMERANG_FLY, 0x30, 0, 0, SFX_FLAG_10)
 /* 0x1811 */ DEFINE_SFX(CHAN_10D2, NA_SE_IT_SWORD_STRIKE, 0x40, 2, 0, 0)
 /* 0x1812 */ DEFINE_SFX(CHAN_10E6, NA_SE_IT_HAMMER_SWING, 0x30, 0, 1, 0)
-#if PLATFORM_N64
-/* 0x1813 */ DEFINE_SFX(CHAN_10F4, NA_SE_IT_HOOKSHOT_REFLECT, 0x20, 0, 0, 0)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 /* 0x1813 */ DEFINE_SFX(CHAN_10F4, NA_SE_IT_HOOKSHOT_REFLECT, 0x30, 0, 0, 0)
+#else
+/* 0x1813 */ DEFINE_SFX(CHAN_10F4, NA_SE_IT_HOOKSHOT_REFLECT, 0x20, 0, 0, 0)
 #endif
 /* 0x1814 */ DEFINE_SFX(CHAN_110B, NA_SE_IT_ARROW_STICK_CRE, 0x30, 0, 0, 0)
 /* 0x1815 */ DEFINE_SFX(CHAN_1120, NA_SE_IT_ARROW_STICK_OBJ, 0x34, 0, 0, 0)
diff --git a/src/audio/general.c b/src/audio/general.c
index e75b0361bc..090a727a42 100644
--- a/src/audio/general.c
+++ b/src/audio/general.c
@@ -1188,7 +1188,7 @@ u8 D_8016B9F3;
 u8 sFanfareStartTimer;
 u16 sFanfareSeqId;
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
 u16 sPrevAmbienceSeqId;
 #endif
 
@@ -1706,7 +1706,7 @@ void AudioOcarina_PlayControllerInput(u8 unused) {
         } else {
             // no bending or vibrato for recording state OCARINA_RECORD_SCARECROW_SPAWN
             sCurOcarinaBendIndex = 0;
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
             sCurOcarinaVibrato = 0;
 #endif
             sCurOcarinaBendFreq = 1.0f; // No bend
@@ -1852,18 +1852,17 @@ void AudioOcarina_PlaybackSong(void) {
             sRelativeNotePlaybackVolume = sNotePlaybackVolume / 127.0f;
         }
 
-#if PLATFORM_N64
-        // Update vibrato
-        sNotePlaybackVibrato = sPlaybackSong[sPlaybackNotePos].vibrato;
-        // Sets vibrato to io port 6
-        AUDIOCMD_CHANNEL_SET_IO(SEQ_PLAYER_SFX, SFX_CHANNEL_OCARINA, 6, sNotePlaybackVibrato);
-#else
         // Update vibrato
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
         if (sNotePlaybackVibrato != sPlaybackSong[sPlaybackNotePos].vibrato) {
             sNotePlaybackVibrato = sPlaybackSong[sPlaybackNotePos].vibrato;
             // Sets vibrato to io port 6
             AUDIOCMD_CHANNEL_SET_IO(SEQ_PLAYER_SFX, SFX_CHANNEL_OCARINA, 6, sNotePlaybackVibrato);
         }
+#else
+        sNotePlaybackVibrato = sPlaybackSong[sPlaybackNotePos].vibrato;
+        // Sets vibrato to io port 6
+        AUDIOCMD_CHANNEL_SET_IO(SEQ_PLAYER_SFX, SFX_CHANNEL_OCARINA, 6, sNotePlaybackVibrato);
 #endif
 
         // Update bend
@@ -2145,7 +2144,7 @@ void AudioOcarina_RecordSong(void) {
         } else if (sRecordOcarinaVolume != sCurOcarinaVolume) {
             noteChanged = true;
         } else if (sRecordOcarinaVibrato != sCurOcarinaVibrato) {
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
             if (sRecordingState != OCARINA_RECORD_SCARECROW_SPAWN) {
                 noteChanged = true;
             }
@@ -2153,7 +2152,7 @@ void AudioOcarina_RecordSong(void) {
             noteChanged = true;
 #endif
         } else if (sRecordOcarinaBendIndex != sCurOcarinaBendIndex) {
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
             if (sRecordingState != OCARINA_RECORD_SCARECROW_SPAWN) {
                 noteChanged = true;
             }
@@ -2494,7 +2493,7 @@ f32 Audio_ComputeSfxFreqScale(u8 bankId, u8 entryIdx) {
 
     switch (bankId) {
         case BANK_VOICE:
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
             if (((entry->sfxId & 0xFF) < 0x40) && (sAudioBaseFilter2 != 0)) {
                 phi_v0 = true;
             } else if (((entry->sfxId & 0xFF) >= 0x40) && (sAudioExtraFilter2 != 0)) {
@@ -2615,7 +2614,7 @@ void Audio_SetSfxProperties(u8 bankId, u8 entryIdx, u8 channelIndex) {
     f32 behindScreenZ;
     u8 baseFilter = 0;
     SfxBankEntry* entry = &gSfxBanks[bankId][entryIdx];
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
     s32 pad;
 #endif
 
@@ -2656,7 +2655,7 @@ void Audio_SetSfxProperties(u8 bankId, u8 entryIdx, u8 channelIndex) {
                 }
             }
             if (sAudioBaseFilter != 0) {
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
                 if ((bankId == BANK_PLAYER) || (bankId == BANK_ITEM) ||
                     ((bankId == BANK_VOICE) && ((entry->sfxId & 0xFF) < 0x40)))
 #else
@@ -3240,7 +3239,7 @@ void Audio_PlaySceneSequence(u16 seqId) {
             AUDIOCMD_GLOBAL_STOP_AUDIOCMDS();
         }
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
         if (Audio_GetActiveSeqId(SEQ_PLAYER_BGM_MAIN) != NA_BGM_DISABLED) {
             Audio_StopSequence(SEQ_PLAYER_BGM_MAIN, 0);
             AUDIOCMD_GLOBAL_STOP_AUDIOCMDS();
@@ -3384,7 +3383,7 @@ void func_800F5B58(void) {
         if (sPrevMainBgmSeqId == NA_BGM_DISABLED) {
             SEQCMD_STOP_SEQUENCE(SEQ_PLAYER_BGM_MAIN, 0);
         } else {
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
             if (sPrevMainBgmSeqId == NA_BGM_NATURE_AMBIENCE) {
                 sPrevMainBgmSeqId = sPrevAmbienceSeqId;
             }
@@ -3520,10 +3519,10 @@ void Audio_SetSequenceMode(u8 seqMode) {
                                          volumeFadeInTimer);
                     SEQCMD_PLAY_SEQUENCE(SEQ_PLAYER_BGM_SUB, 10, 8, NA_BGM_ENEMY);
 
-#if PLATFORM_N64
-                    if (seqId > NA_BGM_NATURE_AMBIENCE)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
                     if (seqId != NA_BGM_NATURE_AMBIENCE)
+#else
+                    if (seqId > NA_BGM_NATURE_AMBIENCE)
 #endif
                     {
                         Audio_SetVolumeScale(SEQ_PLAYER_BGM_MAIN, VOL_SCALE_INDEX_BGM_SUB,
@@ -3545,14 +3544,20 @@ void Audio_SetSequenceMode(u8 seqMode) {
 
                 sPrevSeqMode = seqMode + 0x80;
             } else {
-#if PLATFORM_N64
-                if (seqMode == SEQ_MODE_ENEMY) {
-                    // If both seqMode = sPrevSeqMode = SEQ_MODE_ENEMY
-                    if ((Audio_GetActiveSeqId(SEQ_PLAYER_BGM_SUB) == NA_BGM_DISABLED) && (seqId != NA_BGM_DISABLED) &&
-                        (sSeqFlags[seqId & 0xFF & 0xFF] & SEQ_FLAG_ENEMY)) {
-                        SEQCMD_PLAY_SEQUENCE(SEQ_PLAYER_BGM_SUB, 10, 8, NA_BGM_ENEMY);
-                        sPrevSeqMode = seqMode + 0x80;
-                    }
+#if OOT_VERSION < NTSC_1_1 || PLATFORM_GC
+                // Empty
+#elif OOT_VERSION < PAL_1_0
+                if ((seqMode == SEQ_MODE_ENEMY) && (seqId != NA_BGM_FIELD_LOGIC) &&
+                    (Audio_GetActiveSeqId(SEQ_PLAYER_BGM_SUB) == NA_BGM_DISABLED)) {
+                    SEQCMD_PLAY_SEQUENCE(SEQ_PLAYER_BGM_SUB, 10, 8, NA_BGM_ENEMY);
+                    sPrevSeqMode = seqMode + 0x80;
+                }
+#else
+                // If both seqMode = sPrevSeqMode = SEQ_MODE_ENEMY
+                if ((seqMode == SEQ_MODE_ENEMY) && (Audio_GetActiveSeqId(SEQ_PLAYER_BGM_SUB) == NA_BGM_DISABLED) &&
+                    (seqId != NA_BGM_DISABLED) && (sSeqFlags[seqId & 0xFF & 0xFF] & SEQ_FLAG_ENEMY)) {
+                    SEQCMD_PLAY_SEQUENCE(SEQ_PLAYER_BGM_SUB, 10, 8, NA_BGM_ENEMY);
+                    sPrevSeqMode = seqMode + 0x80;
                 }
 #endif
             }
@@ -3595,20 +3600,20 @@ void Audio_SetBgmEnemyVolume(f32 dist) {
             sAudioEnemyVol = ((350.0f - adjDist) * 127.0f) / 350.0f;
             Audio_SetVolumeScale(SEQ_PLAYER_BGM_SUB, VOL_SCALE_INDEX_BGM_SUB, sAudioEnemyVol, 10);
 
-#if PLATFORM_N64
-            if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId > NA_BGM_NATURE_AMBIENCE)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
             if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId != NA_BGM_NATURE_AMBIENCE)
+#else
+            if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId > NA_BGM_NATURE_AMBIENCE)
 #endif
             {
                 Audio_SetVolumeScale(SEQ_PLAYER_BGM_MAIN, VOL_SCALE_INDEX_BGM_SUB, (0x7F - sAudioEnemyVol), 10);
             }
         }
 
-#if PLATFORM_N64
-        if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId > NA_BGM_NATURE_AMBIENCE)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
         if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId != NA_BGM_NATURE_AMBIENCE)
+#else
+        if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId > NA_BGM_NATURE_AMBIENCE)
 #endif
         {
             Audio_SplitBgmChannels(sAudioEnemyVol);
@@ -3923,7 +3928,7 @@ void func_800F6C34(void) {
     sFanfareStartTimer = 0;
     D_8016B9F3 = 1;
     sMalonSingingDisabled = false;
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
     sPrevAmbienceSeqId = NA_BGM_DISABLED;
 #endif
 }
@@ -3984,7 +3989,7 @@ void Audio_StartNatureAmbienceSequence(u16 playerIO, u16 channelMask) {
     }
 #endif
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
     if ((Audio_GetActiveSeqId(SEQ_PLAYER_BGM_MAIN) != NA_BGM_DISABLED) &&
         (Audio_GetActiveSeqId(SEQ_PLAYER_BGM_MAIN) != NA_BGM_NATURE_AMBIENCE)) {
         Audio_StopSequence(SEQ_PLAYER_BGM_MAIN, 0);
@@ -4018,7 +4023,7 @@ void Audio_PlayNatureAmbienceSequence(u8 natureAmbienceId) {
     if ((gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId == NA_BGM_DISABLED) ||
         !(sSeqFlags[gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId & 0xFF & 0xFF] & SEQ_FLAG_NO_AMBIENCE)) {
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
         if (gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId != NA_BGM_NATURE_AMBIENCE) {
             sPrevAmbienceSeqId = gActiveSeqs[SEQ_PLAYER_BGM_MAIN].seqId;
         }
diff --git a/src/audio/lib/seqplayer.c b/src/audio/lib/seqplayer.c
index 63aedeb56b..71132797e2 100644
--- a/src/audio/lib/seqplayer.c
+++ b/src/audio/lib/seqplayer.c
@@ -437,7 +437,7 @@ void AudioSeq_SequencePlayerDisableAsFinished(SequencePlayer* seqPlayer) {
 void AudioSeq_SequencePlayerDisable(SequencePlayer* seqPlayer) {
     s32 finished = 0;
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
     if (seqPlayer->finished == 1) {
         finished = 1;
     }
@@ -457,7 +457,7 @@ void AudioSeq_SequencePlayerDisable(SequencePlayer* seqPlayer) {
     }
 
     if (AudioLoad_IsFontLoadComplete(seqPlayer->defaultFont)) {
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
         if (finished == 1) {
             AudioHeap_ReleaseNotesForFont(seqPlayer->defaultFont);
         }
diff --git a/src/audio/lib/synthesis.c b/src/audio/lib/synthesis.c
index d2214d99ac..d19ed4ae5f 100644
--- a/src/audio/lib/synthesis.c
+++ b/src/audio/lib/synthesis.c
@@ -644,10 +644,10 @@ Acmd* AudioSynth_DoOneAudioUpdate(s16* aiBuf, s32 aiBufLen, Acmd* cmd, s32 updat
 
             // Leak reverb between the left and right channels
 
-#if PLATFORM_N64
-            if (((reverb->leakRtl != 0) || (reverb->leakLtr != 0)) && (gAudioCtx.soundMode != SOUNDMODE_MONO))
-#else
+#if OOT_VERSION < NTSC_1_1 || PLATFORM_GC
             if ((reverb->leakRtl != 0) || (reverb->leakLtr != 0))
+#else
+            if (((reverb->leakRtl != 0) || (reverb->leakLtr != 0)) && (gAudioCtx.soundMode != SOUNDMODE_MONO))
 #endif
             {
                 cmd = AudioSynth_LeakReverb(cmd, reverb);
@@ -785,7 +785,7 @@ Acmd* AudioSynth_ProcessNote(s32 noteIndex, NoteSubEu* noteSubEu, NoteSynthesisS
     samplesLenFixedPoint = (resamplingRateFixedPoint * aiBufLen * 2) + synthState->samplePosFrac;
     numSamplesToLoad = samplesLenFixedPoint >> 16;
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < NTSC_1_1 || PLATFORM_GC)
     if (numSamplesToLoad == 0) {
         skipBytes = false;
     }
diff --git a/src/audio/lib/thread.c b/src/audio/lib/thread.c
index 561e95e14c..c074f596a1 100644
--- a/src/audio/lib/thread.c
+++ b/src/audio/lib/thread.c
@@ -1,4 +1,5 @@
 #include "global.h"
+#include "versions.h"
 
 #define SAMPLES_TO_OVERPRODUCE 0x10
 #define EXTRA_BUFFERED_AI_SAMPLES_TARGET 0x80
@@ -16,7 +17,7 @@ AudioTask* AudioThread_Update(void) {
     return AudioThread_UpdateImpl();
 }
 
-#if PLATFORM_N64
+#if !(OOT_VERSION < PAL_1_0 || PLATFORM_GC)
 static s32 sMaxAbiCmdCnt = 0x80;
 static AudioTask* sWaitingAudioTask = NULL;
 #endif
@@ -25,7 +26,7 @@ static AudioTask* sWaitingAudioTask = NULL;
  * This is Audio_Update for the audio thread
  */
 AudioTask* AudioThread_UpdateImpl(void) {
-#if !PLATFORM_N64
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
     static s32 sMaxAbiCmdCnt = 0x80;
     static AudioTask* sWaitingAudioTask = NULL;
 #endif
diff --git a/src/audio/session_config.c b/src/audio/session_config.c
index 8d1d97ca0c..8c2824eee4 100644
--- a/src/audio/session_config.c
+++ b/src/audio/session_config.c
@@ -18,10 +18,10 @@ const TempoData gTempoData = {
 // Sizes of everything on the init pool
 #define AI_BUFFERS_SIZE (AIBUF_SIZE * ARRAY_COUNT(gAudioCtx.aiBuffers))
 #define SOUNDFONT_LIST_SIZE (NUM_SOUNDFONTS * sizeof(SoundFont))
-#if PLATFORM_N64
-#define PERMANENT_POOL_SIZE (SFX_SEQ_SIZE + SFX_SOUNDFONT_1_SIZE + SFX_SOUNDFONT_2_SIZE + 0x10)
-#else
+#if OOT_VERSION < PAL_1_0 || PLATFORM_GC
 #define PERMANENT_POOL_SIZE (SFX_SEQ_SIZE + SFX_SOUNDFONT_1_SIZE + SFX_SOUNDFONT_2_SIZE)
+#else
+#define PERMANENT_POOL_SIZE (SFX_SEQ_SIZE + SFX_SOUNDFONT_1_SIZE + SFX_SOUNDFONT_2_SIZE + 0x10)
 #endif
 
 const AudioHeapInitSizes gAudioHeapInitSizes = {
diff --git a/src/audio/sfx.c b/src/audio/sfx.c
index 90ed7a28f6..b3de8eef5d 100644
--- a/src/audio/sfx.c
+++ b/src/audio/sfx.c
@@ -342,7 +342,7 @@ void Audio_ChooseActiveSfx(u8 bankId) {
                            entry->sfxId, entry->posX, entry->posZ, *entry->posX, *entry->posY, *entry->posZ);
                 }
                 entry->priority = (u32)entry->dist + (SQ(0xFF - sfxImportance) * SQ(76));
-#if !PLATFORM_N64
+#if OOT_VERSION < NTSC_1_1 || PLATFORM_GC
                 temp3 = entry->sfxId; // fake
                 entry->priority = entry->priority + temp3 - temp3;
 #endif
diff --git a/src/audio/sfx_params.c b/src/audio/sfx_params.c
index 4f52fbdf0a..7dc1bbd2c7 100644
--- a/src/audio/sfx_params.c
+++ b/src/audio/sfx_params.c
@@ -1,5 +1,6 @@
 #include "ultra64.h"
 #include "global.h"
+#include "versions.h"
 
 #define DEFINE_SFX(_0, _1, importance, distParam, randParam, flags)            \
     { importance, ((((distParam) << SFX_PARAM_01_SHIFT) & SFX_PARAM_01_MASK) | \
diff --git a/src/audio/tables/sequence_table.c b/src/audio/tables/sequence_table.c
index 7a08ce79c5..dc3321d2b4 100644
--- a/src/audio/tables/sequence_table.c
+++ b/src/audio/tables/sequence_table.c
@@ -1,5 +1,6 @@
 #include "attributes.h"
 #include "z64audio.h"
+#include "versions.h"
 
 // Symbol definition