// Pour charger la DLL
    Speex_Load_DLL;      

  speex_bits_init(@decbits);
  decstate := speex_decoder_init(speex_lib_get_mode(SPEEX_MODEID_NB));

  speex_decoder_ctl(decstate,SPEEX_GET_FRAME_SIZE,@decframe);

  SetLength(buffDec, decframe);

  speex_bits_reset(@decbits);