There's no reason to output analog audio at more than 16 bit PCM (delivery format) but there are good reasons to process (raw audio from high-res sensors) digital analog data at greater resolution (production format). 16-bits covers what audible to humans (usually) but it doesn't cover IMO the needed dynamic range of high quality audio equipment to reproduce the entire characteristic of the audio signal including the phase of common audio signals in multi-channel systems during processing.
16 or 24 bit usually doesn't matter for home listening anyway as most people spend a huge amount of money on electronics/speakers and then setup the system in a room with dismal acoustic dimensions, no base traps, wall treatments, speaker placement for only looks and then expect a magical EQ button to fix all that.
16 or 24 bit usually doesn't matter for home listening anyway as most people spend a huge amount of money on electronics/speakers and then setup the system in a room with dismal acoustic dimensions, no base traps, wall treatments, speaker placement for only looks and then expect a magical EQ button to fix all that.
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