to repeat an often-quoted old saw .... a true 32 bit converter would faithfully capture brownian motion.
theres .... just ... no .... point ..... On Wed, May 31, 2017 at 3:40 PM, Brian Willoughby <[email protected]> wrote: > Gordon, > > I was restricting my comments to those situations where you can afford to > not care whether you're dealing with integer or float. In those cases, > 24-bit is the maximum you can support losslessly. CoreAudio is proven to be > bit perfect from 24-bit integer input to 24-bit integer output, even with > 32-bit floating point conversions in the middle. > > It's often important to maintain more than 24 bits for intermediate DSP > formats, but not for conversion. > > As for hardware, I am highly dubious of 32-bit converters. As it stands, > we can barely exceed 110 dB of dynamic range. 24-bit audio has enough > dynamic range to extend from the quietest sound the human ear can discern, > all the way to the sound pressure level near an atomic blast. Admittedly, > signal to noise ratio is not the only metric, because human hearing can > extract sound details from below the noise floor, but 144 dB conversion > doesn't even make sense with 112 dB S/N. > > Are you saying there are ADC chips which guarantee 192 dB signal to noise? > > Brian Willoughby > > > On May 31, 2017, at 12:13 PM, Gordon Rankin <[email protected]> > wrote: > > Why is integer only to 24 bits? I was actually thinking of making a 32 > bit stereo ADC, but not if it's going to chop off the lowest 8 bits. > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Coreaudio-api mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/coreaudio-api/ > paul%40linuxaudiosystems.com > > This email sent to [email protected] >
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