Fractional Delay Filters and Cutoff Frequences

1. What is fractional delay filter?
2. What is cut off frequency in FIR filter?
3. What is fractional filter?
4. What is a good cut off frequency in low pass filter?

What is fractional delay filter?

A fractional delay filter is a filter of digital type having as main function to delay the processed input signal a fractional of the sampling period time.

What is cut off frequency in FIR filter?

Calculate the filter coefficients for a three-tap (number of coefficients) FIR lowpass filter with a cutoff frequency of 800 Hz and a sampling rate of 8000 Hz using the Fourier transform method.

What is fractional filter?

Fractional delay filters are aimed at shifting a digital sequence by a noninteger value, through interpolation and resampling combined into a single convolution filter. This example demonstrates the design and implementation of fractional delay FIR filters using tools available in the DSP System Toolbox™.

What is a good cut off frequency in low pass filter?

The cutoff frequency for a low-pass filter is that frequency at which the output (load) voltage equals 70.7% of the input (source) voltage.