UJAM Beatmaker BLOB

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BLOB

• Game :
  
• Format Type : Archive\Audio
  
• Endian Order : Little Endian
  

Format Specifications

// BM-EDEN.blob
// file format

// little endian


4 bytes - magic  // 0x67 0x45 0x62 0xE8  (gE.b)
4 bytes (uint32) - size of the info json
x bytes (char) - info json  // "{"instruments"..."


// entry array
num_of_entries *
{
   54 bytes - unknown
   250 bytes (char) - file path
}


x bytes (char) - instruments json  // "{..  "Module": "Instrument"..."


num_of_offsets_arrays *
{
   4 bytes (uint32) - number of offsets
   num_of_offsets *
   {
      4 bytes (uint32) - file offset?
   }
}


36 bytes (char) - some UUID  // "c380fd65-15dc-4be5-8d64-28e7716776ee"


num_of_files *
{
   x bytes - file data?
}

MultiEx BMS Script

Not written yet.

Info JSON

Below is the example of the info json:

{
"instruments":
                [{"at_byte":49856,   -- RELATIVE offset of the instruments json
                  "name":"BM-EDEN",
                  "size_bytes":3287280}]
,

"sample_index":{
                 "at_byte":0,   -- offset of the sample index structure
				 "size_bytes":49856},  -- size of the sample index structure
				 "sample_starts_msec":0,
				 "uuid":"c380fd65-15dc-4be5-8d64-28e7716776ee",
				 "version":{"major":1,"minor":1,"patch":0}}   -- sample index version 1.1.0
				 }
}

Instruments JSON

Below is the example of the instruments json:

{
  "Module": "Instrument",
  "Name": "BM-EDEN",
  "Blob Number": "None",
  "Blob Path": "../Output/BM-EDEN/BM-EDEN.blob",
  "Volume": 0.629961,
  "Sustain Pedal": "Off",
  "Script Defines": "EDM SWING SPECIAL_LINEAR",
  "Version": "2.0.2",
  "Editor Data": null,
  "Groups": [
    {
      "Module": "Group",
      "Name": "Bass Drum 1",
      "Volume": 0.519996,
      "Tracking": 0.0,
      "Output": -1,
      "Alternate Mapping": 1,
      "ModSources": [
        {
          "Module": "ModSourceADSR",
          "Name": "Env",
          "Attack": 0.002962,
          "Hold": 0.097266,
          "Decay": 1.0,
          "Decay Curve": 0.0,
          "Release": 1.0
        }
      ]
...

Notes and Comments

• Some scripts are defined inside instruments json.

Compatible Programs

• UJAM Beatmaker
• UJAM_Beatmaker_BLOB_Tool.py