The use of techniques such as oversampling and noise shaping can further extend the dynamic range of sampled audio by moving quantization error out of the frequency band of interest.
42.
Quantization error is the noise introduced by quantization in an ideal ADC . It is a rounding error between the analog input voltage to the ADC and the output digitized value.
43.
In this case, by using the extra bandwidth to distribute quantization error onto out of band frequencies, the accuracy of the ADC can be greatly increased at no cost.
44.
The SQNR reflects the relationship between the maximum nominal signal strength and the quantization error ( also known as quantization noise ) introduced in the analog-to-digital conversion.
45.
Such " quantization errors " may be thought of as a type of noise, because they are effectively the difference between the original source and its binary representation.
46.
Theoretical DSP analyses and derivations are typically performed on discrete-time signal models with no amplitude inaccuracies ( quantization error ), " created " by the abstract process of sampling.
47.
It is not trivial to extrapolate what kind of artifacts you get when quantization errors have an effect on each other and on your derived values, such as v and a here.
48.
For higher orders, digital filters are sensitive to quantization errors, so they are often calculated as cascaded biquad sections, plus one first-order or third-order section for odd orders.
49.
The instrument quantization error depends primarily on the 500 MHz clock ( 2 ns steps ), but other errors also enter; the instrument is specified to have 2.2 ns of jitter.
50.
Because quantization error is assumed to be uniformly distributed with frequency, much of the quantization error is shifted to ultrasonic frequencies, and can be removed by the digital to analog converter during playback.
