I am not saying that there aren't any DACs on the planet that can't handle five millionths of a volt, but I am saying that five millionths of a volt isn't surviving through the particular DACs and the rest of the electronics used in your PC/living room hi-fi audio equipment.
If it were true that there's no audible difference between 16 and 24 bit, companies like Alesis, Otari, ProTools, etc. wouldn't have spent the last 15 years ditching 16 bit like an old pair of smelly sneakers. (better metaphors welcome).
Seriously, anyone who has sat down in a real listening environment for 5 minutes A/Bing 16 vs 20 bit, 16 vs 24, etc. hears the difference immediately. There's no question. This is why you can buy ADAT 16 bit 'blackfaces' for $100, down from their original $4,000.
It's all marketing, baby!
You've never rented an expensive tube EQ during a mix to cover up 16bit's grating harshness from 10k to 15k. Or tried like mad to make the bass drum sound like a freaking bass drum and not a pie pan slamming against the back of a plastic trash can. And yes, we had good mics and pres, all standard studio stuff. Decent, not brilliant, converters, but it was the 16bit that was the problem. Getting those 20bit XTs for the first time was like walking into the Promised Land.
Sure, there's lots of marketing ploys out there, lots of snake oil. Moving up from 16 bit was not one of them.
> Professionals use 24 bit samples in recording and production [11] for headroom, noise floor, and convenience reasons.
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> Modern work flows may involve literally thousands of effects and operations. The quantization noise and noise floor of a 16 bit sample may be undetectable during playback, but multiplying that noise by a few thousand times eventually becomes noticeable. 24 bits keeps the accumulated noise at a very low level. Once the music is ready to distribute, there's no reason to keep more than 16 bits.
The original article does say that yes, during recording and production, 24 bit audio gives you a lot more room to play with. That doesn't mean that you can hear the difference between 16 and 24 bits for the final recording; just that 24 bits give you more room to keep out of trouble during production.
...snip...
>Same goes for 16/24 bit, however, the difference between 16 and 24 bit is actually audible
No, the difference is not audible at all.
...snip...
The original article explicitly mentions how 24bit is useful for recording.
No, the difference is not audible at all. At 16 bits of depth on a normal low-level audio signal (~0.3 volts), we're talking about less than 0.000005 volts per amplitude step. This difference gets lost in the THD already at the DAC in your audio output stage. Then it gets lost again in the amplifier. And again in the cable to your speakers or headphones. And then it gets lost again in the speaker elements. What survives in a normal low-level audio signal is about 14 bits of resolution.
44100 is not a bad sampling rate, but it necessitates very sharp aliasing filters, which are audibly bad. A bit more headroom is well needed there.
44.1khz IS a bad sampling rate for accurately reproducing anything except a triangle wave or square wave above 5khz.