Howtosignalprocessing
- What is frequency warping?
- What is the cause of frequency warping what is the cause of this effect?
- What is warping effect in DSP?
- What is difference between FIR and IIR filter?
What is frequency warping?
Frequency warping transformation is a process where one spectral representation on a certain frequency scale (e.g., Hz, f-domain) and with a certain frequency resolution (most often uniform) is transformed to another representation on a new frequency scale (e.g., Bark or ERB-rate scale, v-domain).
What is the cause of frequency warping what is the cause of this effect?
As "Tan inverse" is a non-linear function, it causes nonlinear compression of the frequency axis. This non-linear mapping which introduces a distortion in the frequency axis is called Frequency Warping.
What is warping effect in DSP?
What is warping effect.Effect compresses the magnitude and phase response. This effect is called warping effect. Pre-warp our desired digital frequency and substitute that into the transformed digital filter function.
What is difference between FIR and IIR filter?
If the impulse response of the filter falls to zero after a finite period of time, it is an FIR (Finite Impulse Response) filter. However, if the impulse response exists indefinitely, it is an IIR (Infinite Impulse Response) filter.
