Forum Replies Created

Viewing 15 posts - 1 through 15 (of 201 total)
    • 9 April 2024 at 5:41 am #807

      Hi Alex,

      It sounds like you have a FIR Designer perpetual license which is bug fixes only. (4.0.3 is the latest on the 4.0 perpetual license.) To upgrade to the latest, take a look at:

      Upgrade Table

      Best regards,
      EA Support

      • This reply was modified 1 month, 2 weeks ago by EA Support.
        30 March 2024 at 8:32 am #804

        Thanks for your patience. Version 4.2.3 is now fixed. Restart FIR Designer and the app will give you the update link.

        Best regards,
        EA Support

          30 March 2024 at 7:11 am #803

          Our sincere apologies, and thank you for reporting this. We’ll get right on it.

          Best regards,
          EA Support

            29 March 2024 at 9:05 pm #800

            Thank you very much for using the forum. We’ve recently had some problems with the new update alert feature in versions since 4.1.1. For this specific issue, please contact us through the eclipseaudio.com contact form, with your license ID, and we’ll send you the link. (We don’t provide the licensable download links publicly.)

            Best regards,
            EA Support

              28 March 2024 at 10:21 am #798

              Thanks again for reporting this. We’ve found the problem and a fix will be in the next releases of both FIR Designer and FIR Designer M.

              Regards,
              EA Support

                28 March 2024 at 6:11 am #797

                We’ll take a look.

                Regards,
                EA Support

                  23 March 2024 at 7:45 am #792

                  Understood. Even just increasing the channel count of the app involves significant UI work which we don’t have time for right now, but we’ll note this as a potential update for the future.

                  Regards,
                  EA Support

                    13 March 2024 at 7:20 am #789

                    We don’t have much experience tuning line arrays. I know some systems, that don’t have FIR capability, do perform HF adjustment (as you described) using IIR filters or minimum phase FIR filters (which are essentially equivalent). The brands I’m thinking of treat the line as roughly 3 zones – short throw (lower boxes), medium throw (mid boxes) and long throw (upper boxes).

                    With FIR you can do things somewhat differently. For example you can EQ the whole array as one using IIR (or minimum phase FIR) – this retains the line array behaviour, particularly at LF and MF – then use FIR for “linear-phase” filtering of upper MF and HF for different groups of cabinets – upper, mid or lower. My understanding is that L’Acoustics array optimisation takes this approach, and some other brands may also.

                    Linear-phase FIR filters are a subset of FIR filters and have the same effective delay across all frequencies. For more on linear-phase FIR filters, read

                    FIR Filter Guide

                    Best regards,
                    EA Support

                      8 March 2024 at 8:10 am #787

                      I’ve contacted DFM asking for the IIR parameters. Please let me know which information you need in detail.

                      Thanks. See the section “Branded IIR Filter Emulation” on

                      FIR Designer Brand Integration

                      Regarding the Multiway FIR I have some questions:
                      – We mainly use multi-way speakers with active processing (no passive crossovers). So, I want to know the differences (advantages and disadvantages) between making the X-OVER using IIR HPF and LPF and enventually All-Pass filter for Phase slope correction, and then use a FIR in the input to flattern the phase from around 400Hz and above – and using FIR on each way instead of IIR.

                      If both approaches result in the same transfer function, and you have the processing flexibility available, then there is no advantage of one method over the other method. However, doing crossovers and phase unwrapping all in FIR usually requires longer FIR filters, than doing a mixed IIR+FIR approach, and the maximum available FIR filter lengths in your processor might not be long enough. So mixed IIR+FIR might be the most viable for you.

                      Also with FIR, even though the software can calculate very fine and high-Q correction filters, we suggest taking care not to correct specifically for one measurement at one level. To help, we provide measurement averaging – the last tab in the workflow. You can use this to spatially overage measurements (and/or average measurements from different levels) then use the averaged measurement in the FIR Designer workflow.

                      Best regards,
                      EA Support

                        15 February 2024 at 2:42 pm #781

                        I’ll email you directly. BTW what version do you currently have? The ‘new version available’ should provide a link, but there were some issues with this link approximately a year back, due to macOS changes.

                        Regards,
                        EA Support

                          5 February 2024 at 6:15 am #777

                          BTW What microphone is this calibration file for? Between 20 Hz and 20 kHz, the file has a range of approximately -17 dB to +10 dB, and with an approximately 15 dB jump just above 16 kHz. This seems way too much variation for a measurement microphone. I would expect something in the range of -3 to 3 dB, and with very minimal phase change.

                          Regards,
                          EA Support

                            5 February 2024 at 5:20 am #776

                            Thank you very much. We’ll look further into this.

                            Regards,
                            EA Support

                              4 February 2024 at 11:59 am #773

                              More on Analog Devices, the IIR tab of FIR Designer can export raw coefficients for all IIR filters to a summary txt file, and the raw coefficients can be entered in this block.

                              https://wiki.analog.com/resources/tools-software/sigmastudio/toolbox/filters/general2ndorder/iircoefficient

                              Best regards,
                              EA Support

                                4 February 2024 at 9:58 am #772

                                Regarding the dropdown menus, we checked the latest builds and they are all opening for a single click on both macOS and MS Windows. (We did some work on this a few years back.) Can you provide more details on where you are having to click more than once to open a dropdown?

                                Regards,
                                EA Support

                                  27 January 2024 at 7:31 pm #769

                                  Now fixed in 1.7.8, released today.

                                  Regards,
                                  EA Support

                                Viewing 15 posts - 1 through 15 (of 201 total)