Talk:EA Command And Conquer 3 Audio Codec

From MultimediaWiki
Jump to: navigation, search

This is likely to be a variant of the EA ADPCM algorithm. Could you post a truncated version of the BIG file to --Suxen drol 04:42, 7 March 2007 (EST)

  • Nope, it's an EA's own mpeg l3 variation with interleaved uncompressed fragments. Nothing new, it was used in NFS:U2 already long time ago. --VAG 16:38, 7 March 2007 (EST)
  • Is there a description of this variant of the MP3 codec anywhere? Or is there some tool I can use that would be able to unpack the compressed .cdata files into something I can play with a media player? (A google search reveals tools but they are all specific to Need For Speed) -- Jonwil
  • This sounds similar to the MP3 format found in selected NBA2003 ASF files. The files are chunked (see Electronic_Arts_Formats). Each audio data chunk has a 12 byte header, followed by one or more 576 byte MPEG Layer 3 frames. --Suxen drol 03:25, 8 March 2007 (EST)
 le_32  number of samples?
 le_u32 alaways zero
 le_u32 magic number? (0x0042CC4B)