What if the Down sampling factor is not an integer?

1. How do you convert a sampling rate by non integer factor?
2. What happens if we violate the Nyquist criteria in downsampling or decimating?
3. What is down sampling factor?

How do you convert a sampling rate by non integer factor?

To enable this process the non-integer factor has to be approximated by a rational number: Hence, the sampling-rate conversion is achieved by interpolating by L i.e. from 44.1 kHz to [44.1x160] = 7056 kHz. Then decimating by M i.e. from 7056 kHz to [7056/147] = 48 kHz.

What happens if we violate the Nyquist criteria in downsampling or decimating?

2.1. 6 What happens if I violate the Nyquist criteria in downsampling or decimating? You get aliasing–just as with other cases of violating the Nyquist criteria. (Aliasing is a type of distortion which cannot be corrected once it occurs.)

What is down sampling factor?

Downsampling is the process of reducing the sampling rate of a signal. Downsample reduces the sampling rate of the input AOs by an integer factor by picking up one out of N samples. Note that no anti-aliasing filter is applied to the original data.