Re: randomized white noise = white noise?



The problem is I have about 400 instructions (because I have a 50ns
instruction time and 1/44100 of a second to generate the sample for cd
quality audio) of a fixed point 8 bit microcontroller to make an FIR or
perform an inverse fourier transform. Does this sound possible? Maybe I
can look at this as a "how to cleverly make a FIR filter using a casio
calculator watch" kind of problem.... so how do you optimize an FIR
filter for limited memory and high speed?

.



Relevant Pages

  • Re: Farrow interpolation in QPSK synchro
    ... Let me try to summarize Farrow's idea in three bullet points: ... I keep 32 different banks of FIR coefficients at hand, ... FIR filter to interpolate, not linear interpolation (which boils down to ...
    (comp.dsp)
  • Re: transfer function
    ... The fir central frequans:40 khz batwith:10 khz. ... Design a FIR filter with the desired frequency response. ... bunch of weighted delays. ... Each "tap" on a FIR filter would have a transform: ...
    (comp.dsp)
  • Re: Scaling FIR output
    ... and 2 stages FIR. ... Input to the FIR filter? ... Assuming you actually meant tho say "the SNR of the *output* signal ... either in terms of $$ or in terms of gates in the FPGA. ...
    (comp.dsp)
  • Re: Linear Phase via Phase Cloning New Method
    ... You have designed a lowpass FIR filter ... delay in the passband. ... can you design FIR filtes ...
    (comp.dsp)
  • Re: DFT or DFS: Are they the same thing?
    ... and how many uncorrupted output samples do you expect to get for each ... N is the DFT size. ... The complex exponentials are the FIR filter coefficients. ...
    (comp.dsp)