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FIR filters
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<blockquote data-quote="Sean Thomas" data-source="post: 147842" data-attributes="member: 5801"><p>Re: FIR filters</p><p></p><p>Ok - I opened up a can of worms I wasn't prepared for. Like Tim implied "how's your math?" ............ not good enough. </p><p></p><p>Very interesting stuff, but I have no desire (at this point) to understand the math of FIR. I was really looking for a laymens explanation of FIR. Here is what I think it is, what it does, and why it is better than standard EQ and Crossover filters.</p><p></p><p>1. FIR filters can apply EQ and Crossover filter functions like the traditional filters (LR, BW, Parametric, etc.) but in a different way using complex mathmatical algorithms.</p><p></p><p>2. PROS of FIR:</p><p> a: no time based issues like traditional filters: phase and cancelation</p><p> b: more headroom/gain in dB due to the lack of phase cancelations</p><p> c: better horizontal coverage due to lack of phase issues</p><p></p><p>3. CONS of FIR:</p><p>a. requires more DSP</p><p>b. time and cost to develop and test FIR dsp settings</p><p></p><p>Please correct any of my assumptions.</p><p></p><p>Thanks again!</p></blockquote><p></p>
[QUOTE="Sean Thomas, post: 147842, member: 5801"] Re: FIR filters Ok - I opened up a can of worms I wasn't prepared for. Like Tim implied "how's your math?" ............ not good enough. Very interesting stuff, but I have no desire (at this point) to understand the math of FIR. I was really looking for a laymens explanation of FIR. Here is what I think it is, what it does, and why it is better than standard EQ and Crossover filters. 1. FIR filters can apply EQ and Crossover filter functions like the traditional filters (LR, BW, Parametric, etc.) but in a different way using complex mathmatical algorithms. 2. PROS of FIR: a: no time based issues like traditional filters: phase and cancelation b: more headroom/gain in dB due to the lack of phase cancelations c: better horizontal coverage due to lack of phase issues 3. CONS of FIR: a. requires more DSP b. time and cost to develop and test FIR dsp settings Please correct any of my assumptions. Thanks again! [/QUOTE]
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