Support Forums Forums FIR Designer Support Help, newbie needs some guidance Reply To: Help, newbie needs some guidance

2 December 2021 at 5:27 pm #373

>> i was doing 48khz sample rate while the xta is native at 96k.
>> Do i need to redo my measurement as well in 96k?
No, just change the sample rate in FIR Designer to 96 kHz and check the Export tab – you’ll probably need to double the filter delay and length settings to match the time intervals at 48 kHz – then export the filter again.

>> …. are these correct?

Yep, I think that’s a good starting point. We have tutorial showing a 2-way design with only FIR at

Designing FIR Crossover Filters for 2-Way Loudspeaker

This is just one approach to doing a FIR 2-way. Like I said above, another way is to do a regular IIR crossover design, then measure the whole cabinet and create a single FIR correction filter for the whole speaker. Some processors can only do a single FIR before crossover. Some can run a FIR for every output.

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