[continued from previous message]   
      
   Works OK for speech, but is poor for non-speech audio.   
   Quality can be improved by more waves, but this quickly eats any bitrate   
   advantage.   
   Can note that while called sinewave synthesis, I also got good results   
   with 3-state waves (-1, 0, 1), which are computationally preferable   
   (wave-shape is: 1,0,-1,0).   
      
   Can note that when used for non-speech, sinewave synthesis can have   
   similar artifacts to low bitrate MP3.   
      
   Could be pushed to lower update rates and maybe could make sense for   
   basic songs (say, as a possible alternative to MIDI; which is arguably a   
   somewhat more complex technology).   
      
   Though, can note that for some older systems, sound effects were stored   
   as variable-frequency square waves (say, for example, updating the   
   square-wave frequency at 18 Hz or similar, with each frequency stored as   
   a 16-bit clock-divider value or similar); along with some use of   
   Delta-Sigma audio (where low-frequency delta-sigma sounds terrible).   
   Neither are particularly good though.   
      
      
   Though, for general audio storage (such as sound effects), some sort of   
   ADPCM variant still seems preferable here.   
      
   Though, still not yet found anything that is clearly beating 2 bit ADPCM   
   for this (seemingly a still a good option for sound effects).   
      
   And, as noted, could still get good results with ADPCM + LZMA (or   
   similar), main issue being the high computational cost of the latter.   
      
   ...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)