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<blockquote data-quote="Arthur Skudra" data-source="post: 50604" data-attributes="member: 131">Re: (MOVED) - FIR discussion spinoffKeep in mind the FIR filter implementation in the context of the MiniDSP and similar products is geared towards those who wish to develop their own custom inverse room curves (typically for auto-eq setups in home theatres).&nbsp; You know, and I know, that in live sound, auto-eq is a lame attempt to appease beginners into thinking they can equalize their systems and not worry about positional anomalies.FIR implementation in live sound has it&#039;s applications, however you&#039;d want to do this carefully under very controlled circumstances, not with the speaker hung 40 ft up in the air, in a giant shed (though I&#039;ve done that before with some limited success with a simple 2 pole all pass filter).&nbsp; The type of FIR implementation that some loudspeaker manufacturers are doing for loudspeaker correction is more a result of some serious math calculations based on computer simulations and modeling, not something that they stick a mic in front of the speaker and presto, out comes a FIR filter that&#039;s &quot;just right.&quot;&nbsp; This is not to say they don&#039;t use FFT analysis to fine tune the resulting speaker optimization.</blockquote>

[QUOTE="Arthur Skudra, post: 50604, member: 131"] Re: (MOVED) - FIR discussion spinoff Keep in mind the FIR filter implementation in the context of the MiniDSP and similar products is geared towards those who wish to develop their own custom inverse room curves (typically for auto-eq setups in home theatres). You know, and I know, that in live sound, auto-eq is a lame attempt to appease beginners into thinking they can equalize their systems and not worry about positional anomalies. FIR implementation in live sound has it's applications, however you'd want to do this carefully under very controlled circumstances, not with the speaker hung 40 ft up in the air, in a giant shed (though I've done that before with some limited success with a simple 2 pole all pass filter). The type of FIR implementation that some loudspeaker manufacturers are doing for loudspeaker correction is more a result of some serious math calculations based on computer simulations and modeling, not something that they stick a mic in front of the speaker and presto, out comes a FIR filter that's "just right." This is not to say they don't use FFT analysis to fine tune the resulting speaker optimization. [/QUOTE]

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