audio docs

include/sf64audio_provisional.h

@@ -52,8 +52,8 @@ typedef void (*AudioCustomUpdateFunction)(void);
 // Samples are processed in groups of 16 called a "frame"
 #define SAMPLES_PER_FRAME ADPCMFSIZE
 
-// The length of one left/right channel is 13 frames
-#define DMEM_1CH_SIZE (13 * SAMPLES_PER_FRAME * SAMPLE_SIZE)
+// The length of one left/right channel is 12 frames
+#define DMEM_1CH_SIZE (12 * SAMPLES_PER_FRAME * SAMPLE_SIZE)
 // Both left and right channels
 #define DMEM_2CH_SIZE (2 * DMEM_1CH_SIZE)
 
@@ -840,7 +840,7 @@ typedef struct {
 typedef struct {
     /* 0x00 */ AudioTableBase base;
     /* 0x10 */ AudioTableEntry entries[]; // (dynamic size)
-} AudioTable;                             // size >= 0x20
+} AudioTable; // size >= 0x20
 
 typedef struct SampleDma {
     /* 0x00 */ u8* ramAddr;
@@ -1020,7 +1020,7 @@ typedef struct {
 #define SEQ_BYTE2(seqId) (((seqId) & (0xFF << 16)) >> 13 & 0xFFFF)
 
 // audio_synthesis
-void func_80008780(f32*, s32, f32*);
+void AudioSynth_HartleyTransform(f32*, s32, f32*);
 Acmd* AudioSynth_Update(Acmd* aList, s32* cmdCount, s16* aiBufStart, s32 aiBufLen);
 
 // audio_effects

linker_scripts/us/rev1/symbol_addrs_audio.txt

@@ -222,25 +222,25 @@ sAudioResetMsg = 0x8015661C;
 
 
 // functions
-func_800080C0 = 0x800080C0;
-func_80008364 = 0x80008364;
-func_80008780 = 0x80008780;
+AudioSynth_InitNextRingBuf = 0x800080C0;
+AudioSynth_InverseDiscreteCosineTransform = 0x80008364;
+AudioSynth_HartleyTransform = 0x80008780;
 func_80009124 = 0x80009124;
 func_80009504 = 0x80009504;
 func_8000967C = 0x8000967C;
 func_800097A8 = 0x800097A8;
-func_800098DC = 0x800098DC;
-func_80009984 = 0x80009984;
-func_80009A2C = 0x80009A2C;
-func_80009AAC = 0x80009AAC;
+AudioSynth_LoadRingBufferPart = 0x800098DC;
+AudioSynth_SaveRingBufferPart = 0x80009984;
+AudioSynth_DisableSampleStates = 0x80009A2C;
+AudioSynth_SyncSampleStates = 0x80009AAC;
 AudioSynth_Update = 0x80009B64;
-func_80009D78 = 0x80009D78;
-func_8000A128 = 0x8000A128;
-func_8000A25C = 0x8000A25C;
+AudioSynth_LoadReverbSamples = 0x80009D78;
+AudioSynth_SaveReverbSamples = 0x8000A128;
+AudioSynth_DoOneAudioUpdate = 0x8000A25C;
 AudioSynth_ProcessNote = 0x8000A700;
 AudioSynth_LoadWaveSamples = 0x8000B3F0;
-func_8000B480 = 0x8000B480;
-func_8000B51C = 0x8000B51C;
+AudioSynth_FinalResample = 0x8000B480;
+AudioSynth_ProcessEnvelope = 0x8000B51C;
 AudioSynth_ApplyHaasEffect = 0x8000B98C;
 
 

src/audio/audio_general.c

@@ -2241,7 +2241,7 @@ void Audio_AnalyzeFrequencies(f32* buffer0, f32* buffer1, s32 length, f32* buffe
     buff1half1 = buffer1;
 
     // FFT buffer 1 using buffer 2
-    func_80008780(buffer1, length, buffer2);
+    AudioSynth_HartleyTransform(buffer1, length, buffer2);
 
     // handle i = 0 case
     buff0fromStart[0] = buff1half1[0];