Difference between revisions of "FF7/PSX/Sound/INSTRx.DAT"

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(Add hard-coded load offset information for each files.)
 
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There are two files of such type:
 
There are two files of such type:
−
* SOUND/INSTR.DAT - Main game sounds (93 instruments)
+
 
−
* SOUND/INSTR2.DAT - Voices from ending theme "One Winged Angel" (4 instruments)
+
 
 +
{| class="wikitable"
 +
! File
 +
! Number of Instruments
 +
! Load Offset
 +
! Load Size
 +
! Description
 +
|-
 +
|SOUND/INSTR.DAT
 +
|style="text-align:right"| 93
 +
|0
 +
|0x2000 (128 * 0x40)
 +
|Main game sounds
 +
|-
 +
|SOUND/INSTR2.DAT
 +
|style="text-align:right"| 4
 +
|0xD40 (53 * 0x40)
 +
|0x12C0 (75 * 0x40)
 +
|Voices from ending theme "One Winged Angel"
 +
|}
  
 
These files contain index data for all instruments from INSTRx.ALL.
 
These files contain index data for all instruments from INSTRx.ALL.
Line 8: Line 27:
 
== Record format ==
 
== Record format ==
  
−
  struct InstrumentIndex
+
  struct AkaoInstrumentAttr
 
  {
 
  {
 
   /* offsets */
 
   /* offsets */
−
   uint32_t attack_offset // offset to attack part of instrument (SPU hardware address)
+
   uint32_t addr;        // offset to attack part of instrument (SPU hardware address)
−
   uint32_t loop_offset; // offset to loop part of instrument (SPU hardware address)
+
   uint32_t loop_addr;   // offset to loop part of instrument (SPU hardware address)
 
   /* ADSR Envelope settings */
 
   /* ADSR Envelope settings */
−
   uint8_t attack_rate;   // ADSR: attack rate (0x00-0x7f)
+
   uint8_t ar;           // ADSR: attack rate (0x00-0x7f)
−
   uint8_t decay_rate;   // ADSR: decay rate (0x00-0x0f)
+
   uint8_t dr;           // ADSR: decay rate (0x00-0x0f)
−
   uint8_t sustain_level; // ADSR: sustain level (0x00-0x0f)
+
   uint8_t sl;           // ADSR: sustain level (0x00-0x0f)
−
   uint8_t sustain_rate; // ADSR: sustain rate (0x00-0x7f)
+
   uint8_t sr;           // ADSR: sustain rate (0x00-0x7f)
−
   uint8_t release_rate; // ADSR: release rate (0x00-0x1f)
+
   uint8_t rr;           // ADSR: release rate (0x00-0x1f)
−
   uint8_t attack_mode;   // ADSR: attack mode
+
   uint8_t a_mode;       // ADSR: attack mode
 
                           //    0x05 - (exponential)
 
                           //    0x05 - (exponential)
 
                           //    0x01 (default) - (linear)
 
                           //    0x01 (default) - (linear)
−
   uint8_t sustain_mode; // ADSR: sustain mode
+
   uint8_t s_mode;       // ADSR: sustain mode
 
                           //    0x01 - (linear, increase)
 
                           //    0x01 - (linear, increase)
 
                           //    0x05 - (exponential, increase)
 
                           //    0x05 - (exponential, increase)
 
                           //    0x07 - (exponential, decrease)
 
                           //    0x07 - (exponential, decrease)
 
                           //    0x03 (default) - (linear, decrease)
 
                           //    0x03 (default) - (linear, decrease)
−
   uint8_t release_mode; // ADSR: release mode
+
   uint8_t r_mode;       // ADSR: release mode
 
                           //    0x07 - (exponential decrease)
 
                           //    0x07 - (exponential decrease)
 
                           //    0x03 (default) - (linear decrease)
 
                           //    0x03 (default) - (linear decrease)

Latest revision as of 18:25, 20 June 2020

There are two files of such type:


File Number of Instruments Load Offset Load Size Description
SOUND/INSTR.DAT 93 0 0x2000 (128 * 0x40) Main game sounds
SOUND/INSTR2.DAT 4 0xD40 (53 * 0x40) 0x12C0 (75 * 0x40) Voices from ending theme "One Winged Angel"

These files contain index data for all instruments from INSTRx.ALL.


Record format

struct AkaoInstrumentAttr
{
  /* offsets */
  uint32_t addr;         // offset to attack part of instrument (SPU hardware address)
  uint32_t loop_addr;    // offset to loop part of instrument (SPU hardware address)
  /* ADSR Envelope settings */
  uint8_t ar;            // ADSR: attack rate (0x00-0x7f)
  uint8_t dr;            // ADSR: decay rate (0x00-0x0f)
  uint8_t sl;            // ADSR: sustain level (0x00-0x0f)
  uint8_t sr;            // ADSR: sustain rate (0x00-0x7f)
  uint8_t rr;            // ADSR: release rate (0x00-0x1f)
  uint8_t a_mode;        // ADSR: attack mode
                         //    0x05 - (exponential)
                         //    0x01 (default) - (linear)
  uint8_t s_mode;        // ADSR: sustain mode
                         //    0x01 - (linear, increase)
                         //    0x05 - (exponential, increase)
                         //    0x07 - (exponential, decrease)
                         //    0x03 (default) - (linear, decrease)
  uint8_t r_mode;        // ADSR: release mode
                         //    0x07 - (exponential decrease)
                         //    0x03 (default) - (linear decrease)
  uint32_t pitch[12];    // predefined pitch set for instrument
};

Each index file takes 4 CDROM sectors, so rest unused data filled with zeroes. Attack and loop offsets isn't real file offsets, it's offsets to instruments in SPU internal memory (all instrument data from INSTRx.ALL files are copied by DMA to SPU memory in one chunk), so to translate INSTR.ALL you need to subtract 0x0ff0 (or you need to subtract 0x38540 for INSTR2.DAT). INSTR.DAT file resides in PSX RAM at address 0x80075f30 and when it's needed to load any instrument or to reset pitch for this instrument this table is used.

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