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Recovering a signal that was upsampled by non-integer factor

Recovering a signal that was upsampled by non-integer factor
  1. How do you convert a sampling rate by non integer factor?
  2. Is it possible to Upsample the signal?

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.

Is it possible to Upsample the signal?

Upsampling is the process of inserting zero-valued samples between the original samples of a signal to increase the sampling rate. One way to accomplish upsampling by an integer ratio of 1:D is to interpose D-1 zero samples between each pair of the input samples of the signal.

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