HCA Audio
From XentaxWiki
Back to index | Edit this page
Contents
HCA
- Format Type : Audio
- Endian Order : Big Endian
- Signature : HCA (not encrypted) / C8 C3 C1 00 (encrypted)
Format Specifications
// HCA file format
// big endian
// header
4 bytes (char) - signature // "HCA\x00" - not encrypted
// C8 C3 C1 00 - encrypted 0x00C1C3C8 & 0x7f7f7f7f = "HCA\x00"
2 bytes (uint16) - version // 0x01 0x03 - v1.3
// 0x02 0x00 - v2.0
// 0x03 0x00 - v3.0
2 bytes (uint16) - header size
// format info
4 bytes (char) - format string // "fmt\x00"
1 byte (uint8) - channels
3 bytes (uint24) - sample rate
4 bytes (uint32) - frame count
2 bytes (uint16) - encoder delay
2 bytes (uint16) - encoder padding
// compression info (v2.0) or decoder info (v1.X), never both
4 bytes (char) - compression string // "comp"
//TODO
4 bytes (char) - decode string // "dec\x00"
//TODO
MultiEx BMS Script
Not written yet.
Notes and Comments
- HCA files may be encrypted with XOR using 8-bytes keys.
- HCA audio is often stored inside AWB Archive.
Games
List of games using this file format:
- Boku wa Tomodachi ga Sukunai Portable (PSP) (*.HCA)
- Heaven Burns Red (HCA audio packed inside AWB archive)
- Priconne! Grand Masters (Android) (HCA audio packed inside AWB archive)
- Super Robot Wars T (*.BIN)
And also some games listed here.
Compatible Programs
- CriTools
- foobar2000 + vgmstream plugin (supports encrypted files)
- FastHCADecoder
- Media Player Classic
- DereTore / HCA-Cipher-Converter / HCA-Decoder / HCA-Encoder
- HCA Decoder v1.16
- VGAudio (supports some encrypted files)
Applying HCA keys with foobar2000
- Create some directory on your desktop, call it for example "HCA Audio".
- Get your HCA key in hex form, for example 66 15 51 8E 8E CE D4 47.
- Create .hcakey file and put HCA key inside as hex data (8 bytes long). You can use hex editor for that.
- Put your AWB/ACB files inside a directory with .hcakey file.
Final effect should look like this:
- Play AWB file in foobar2000 with vgmstream plugin installed.
See Also
