Asobo Studio SDX

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SDX


Format Specifications (CT Special Forces)

// CT Special Forces Fire for effect
// SDX audio file (.sdx) description
// Document has been created by Bartlomiej Duda


// Data type: PCM 16-bit
// Sample rate: 32000 Hz

// Tool used to extract: Awave studio v11.3



// HEADER
4 bytes - magic (\xEA\x03\x00\x00)
4 bytes - number of entries
8 bytes - identifier/description
4 bytes - unknown


//ENTRY TABLE
number_of_entries *
{
   //16 bytes per entry
   2 bytes - sample rate in Hz
   2 bytes - sample frequency
   2 bytes - small header offset
   2 bytes - unknown (increasing value)
   4 bytes - sample size
   4 bytes - unknown
}


//DATA
number_of_entries *
{
   x bytes - small header
   x bytes - padding
   x bytes - audio data
}


Format Specifications (WALL-E)

// WALL-E (PC)
// SDX audio file (.sdx) description
// Document has been created by Bartlomiej Duda


// Data type: IMA ADPCM
// Sample rate: usually 32000 Hz 

// Tool used to extract: Foobar + vgmstream



// HEADER
4 bytes - magic (\xEB\x03\x00\x00)
4 bytes (uint32) - number of entries
8 bytes - nulls


//ENTRY TABLE
number_of_entries *
{
   //16 bytes per entry
   2 bytes (uint16) - unknown
   2 bytes - sample frequency
   2 bytes - sample rate in Hz  // e.g. 32000
   2 bytes - header size   // 2048
   4 bytes - sample offset
   4 bytes - sample size
}


//DATA
number_of_entries *
{
   x bytes - header
   x bytes - padding
   x bytes - audio data
}

MultiEx BMS Script

Not written yet.

Games

List of games using this file format:

  • CT Special Forces: Fire for effect
  • WALL-E

Notes and Comments

  • This file format occurs in games from Asobo Studio.
  • Samples from WALL-E can be partially recovered using this SoX command "sox.exe -t ima -r32k -e ima-adpcm audio_file1.bin file_out1.wav".
    But it's better to use Foobar + vgmstream plugin for extracting.

Compatible Programs