How to change the samplimg rate with interpolation and decimation?

1. How do you change the sample rate of a signal?
2. What is the process of reducing the sampling rate by the factor de?
3. How can we reduce the sample rate?
4. What is the process of increasing the sampling rate by a factor I?

How do you change the sample rate of a signal?

To change the sample rate from 44.1 to 48 kHz, you have to determine a rational number (ratio of integers), P/Q , such that P/Q times the original sample rate, 44100, is equal to 48000 within some specified tolerance. To determine these factors, use rat .

What is the process of reducing the sampling rate by the factor de?

Down-sampling:

The process of reducing the sampling rate by an integer factor(D) is called decimation of the sampling rate. It is also called down sampling by factor(D). Decimator consists of decimation filter to band limit the signal and down sampler to decrease the sampling rate by an integer factor (D).

How can we reduce the sample rate?

y = downsample( x , n ) decreases the sample rate of x by keeping the first sample and then every n th sample after the first. If x is a matrix, the function treats each column as a separate sequence. y = downsample( x , n , phase ) specifies the number of samples by which to offset the downsampled sequence.

What is the process of increasing the sampling rate by a factor I?

Explanation: The process of increasing the sampling rate by an integer factor I, i.e., up-sampling by I is called as interpolation.