No need. it is mathematically proven that digital audio recordings can be reproduced 100% faithfully as long as the sampling rate is at least twice as high as the highest audio frequency. No one on this planet can hear a frequency of 20.5 kHz or greater. Personally I can’t hear anything above 12.5kHz.
“No need. it is mathematically proven that digital audio recordings can be reproduced 100% faithfully as long as the sampling rate is at least twice as high as the highest audio frequency. No one on this planet can hear a frequency of 20.5 kHz or greater. Personally I can’t hear anything above 12.5kHz.”
I learned about the Nyquist frequency but you really need some schooling on this subject!
The audio reproduction cannot be 100% faithfully reproduced to 20khz using a 44.1 kHz sampling rate.
I learned about the Nyquist frequency over 40 years ago.
I spent my career as a Test Engineer sampling data.
I learned about the Nyquist frequency over 40 years ago.
I spent my career as a Test Engineer sampling data.
“No need. it is mathematically proven that digital audio recordings can be reproduced 100% faithfully as long as the sampling rate is at least twice as high as the highest audio frequency. “
We have gone through several reasons why this is not true. Now I present another via an exercise.
Draw a sine wave of three cycles. Now plot ‘sampling points’ at 2.1x the wave frequency.
Connect the dots and you will see!
By the way, you say at least twice the frequency. Try plotting that starting at zero degrees on the sine signal. The resulting output will be 0 0 0 0 0 0 0.
Here is an old discussion but presents real world problems of digital sampling. The comments are worth reading.