format  void PCM_SetVolume (PcmHn pcm, Sint32 volume)
 Input  pcm: Handle
  volume: Volume (0-7)
 Output  None
 Function value  None
 Function  Specify the volume. (No output at 0, 7 at maximum volume)
 Default  is 7. 

  format  void PCM_ChangePcmPara (PcmHn pcm)
 Input  pcm: Handle
 Output  None
 Function value  None
 Function  Changes PCM playback parameters during playback for the sound driver.
 Remarks  After setting the volume and pan, this function is called to actually change
 will be performed . 

  format  void PCM_SetPcmCmdBlockNo (PcmHn pcm, Sint32 blk_no)
 Input  pcm: Handle
:  blk_no: PCM command block number (0-7)
 Output  None
 Function value  None
 Function  Set the PCM command block number to be set in the sound driver.
 Default  is 1.
 Remarks  For details on PCM command block numbers, see “SATURN SOUND DRIVER SOUND
Please refer to  Manual .
:  Call this function before starting playback.