M
Mindset
Well-known member
eyeteeth said:Vox... I have never seen rates broken down that way.
My understanding, is in brief... The highest record able frequency, is half the sample rate... 44.1, 22khz; 88.1, 44khz... etc. which as mentioned is still far beyond a humans hearing range, especially as we get older. The beginning of the problem, is what the A/D converters do with the frequencies... harmonics we can't here. Think of all the harmonic overtones present in a cymbal crash. Even though we can't "hear" those frequencies, they all enhance, and effect the frequencies we CAN hear. So at 44.1, these harmonics get chopped at 22khz... the result however, is the D/A converters manifest these frequencies out of the range as digital noise at a corresponding frequency in the bottom end of the spectrum.
So the higher the sample rate, the truer sound capture you will have as there is a more accurate representation of harmonic overtones, and the less digital noise created from cutting frequencies.
I have, it's the easier way of looking of how it works to the simplest form. What your saying is correct, but also, since the humans hear 20-20khz, and this is all digital, the actual recorded rates wouldn't be doubles 44.1, 88.2 etc. the extra they laid on top (instead of going 20, 40, 80, etc) were for basically error corrections, aliasing sounds & others if I remember correctly.