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The threat of litigation is pathetically laughable. Tried and true strategy of losers in all facets of business. You don't like something or feel your business will not benefit? Threaten to sue. Very American or is it just more Trumpism?
 
Apple is not forcing anyone to produce Spatial Audio. So cannot understand the complaining.
 
I listened to some tracks from a Spacial Audio playlist...wow, what a frustrating experience: all what is happening, in each and every song, is the fading from left to right to left, back to right, and left ear again. Incredibly annoying to hear. IMO.
 
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