M
Michael
- Jan 1, 1970
- 0
Is it possible to generate a high pass filter with a constant group
delay in the pass band (bessel response)?
This is for car audio, although people claim that phase error cannot
be heard, I believe it can at low F, where the delay created by the
phase shift becomes more significant.
I have seen methods for calculating values on the net but they don't
seem to have a bessel phase response.
I am capable of analysing active filter circuits and deriving
transfer function, I then write simple basic programs to plot the
response. I have verified my program by matching values and creating
the same plots as Microchips filter lab. I have also noticed that
filter lab 2.0 will not generate high pass bessel.
If this is impossible I will be forced to continue with a DSP
approach, which is turing out to be a lot of work.
delay in the pass band (bessel response)?
This is for car audio, although people claim that phase error cannot
be heard, I believe it can at low F, where the delay created by the
phase shift becomes more significant.
I have seen methods for calculating values on the net but they don't
seem to have a bessel phase response.
I am capable of analysing active filter circuits and deriving
transfer function, I then write simple basic programs to plot the
response. I have verified my program by matching values and creating
the same plots as Microchips filter lab. I have also noticed that
filter lab 2.0 will not generate high pass bessel.
If this is impossible I will be forced to continue with a DSP
approach, which is turing out to be a lot of work.