rem: update_MasterVolume(audioctrl,AHIBase);
add: update_MasterVolume( audioctrl );
context: free_DSPEcho ( struct AHIPrivAudioCtrl *audioctrl,               struct AHIBase *AHIBase )#endif{  void *p = audioctrl->ahiac_EffDSPEchoStruct;  // Hide it from mixing routine before freeing it!  audioctrl->ahiac_EffDSPEchoStruct = NULL;  FreeVec(p);  audioctrl->ahiac_EchoMasterVolume = 0x10000;  update_MasterVolume(audioctrl,AHIBase);}