DSP Phase shifter
1.) notches that are non periodical
2.) IIR comb filters
DSP Flanging
1.) notches of the comb filter which are periodical in frequency
2.) FIR comb filters
DSP vibrato
1.) IIR comb filter
Reverbs
1.) IIR comb filter
2.) Acoustical Cylinder
3.) frequency dependant feedback coefficient
DSP filters
1.) sequence of multiplication's and additions
2.) utterworth, Chebyshev, Inverse Chebyshev, Elliptic, Kaiser Window, Dolph-Chebyshev, and Equi-Ripple
3.) bi-quad digital filter structure
4.) "Windowed" filters
5.) filter complexity number of taps
6.) vector of polynomial coefficients
7.) Recursive and non-recursive filters
8.) transfer function of a digital filter this sets the frequency response
9.) output sequence for the filter
10.) Coefficients of recursive (IIR) digital filters
11.) filter coefficients-values of these coefficients determine the characteristics of a particular filter
FIR (Finite Impulse Response) filters
1.) can create transfers functions
2.) Calculation coefficients
3.) symmetric FIR filters
4.) NON-Recursive filters
5.) Fixed point math processing
6.) FIR comb filter feedback
IIR (or Infinite Impulse Response) filter
1.) Recursive filters
2.) Floating-Point math processing
3.) IIR comb filter feedback
Software programs to make DSP IIR or FIR digital filters:
1.) Matlab graphical user interface (GUI)
2.) LabVIEW Digital Filter
A recursive filter is one which in addition to input values also uses previous output values. These, like the previous input values, are stored in the processor's memory.recursive literally means "running back", and refers to the fact that previously-calculated output values go back into the calculation of the latest output. The expression for a recursive filter therefore contains not only terms involving the input values
non-recursive filter is known as an FIR (or Finite Impulse Response) filter, and a recursive filter as an IIR (or Infinite Impulse Response) filter. These terms refer to the differing "impulse responses" of the two types of filter
The impulse response of a digital filter is the output sequence from the filter when a unit impulse is applied at its input. (A unit impulse is a very simple input sequence consisting of a single value of 1 at time t = 0, followed by zeros at all subsequent sampling instants). An FIR filter is one whose impulse response is of finite duration. An IIR filter is one whose impulse response (theoretically) continues for ever, because the recursive (previous output) terms feed back energy into the filter input and keep it going. The term IIR is not very accurate, because the actual impulse responses of nearly all IIR filters reduce virtually to zero in a finite time. Nevertheless, these two terms are widely used
What else do i need to know please about IIR and FIR filters
What about for LFO oscilloscope waveforms what does DSP use for this please?