Forum Replies Created
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2 February 2025 at 11:26 am #991
Yes, the filter length is the number of samples or taps. And yes, the delay allows you to move the peak within the filter length. The delay represents the time=0 point in the filter and is the effective bulk processing delay through the filter. The delay is not needed for SigmaStudio.
Please read the FIR filter guide to learn more.
Regards,
EA Support18 January 2025 at 4:01 pm #988You can check these yourself by loading them into the Import tab.
FIRLR2 sample1_1.bin & FIRLR2 sample1_3.bin are the HF (channel 3)
FIRLR2 sample1_2.bin is the MF (channel 2)>> Probably there is some bug in your software.
We just checked the export for each channel here and it’s working correctly.
Regards,
EA Support16 January 2025 at 6:48 am #983Do any of the Averaging options take into consideration the Coherence of the Transfer Function measurements in use?
No, the coherence is not used. However, incorporating coherence in the averaging process is on the TODO to investigate and implement.
Regards,
EA Support16 January 2025 at 6:44 am #982Our support is focussed specifically on using our products. We don’t have the resources to provide individual assistance, advice, training & education in DSP fundamentals, concepts & best practices and loudspeaker measurement techniques. Other forum members may be able to help, otherwise I suggest you seek other sources of information on measurement techniques and best practices.
Regards,
EA Support14 January 2025 at 3:32 pm #978Is it possible to import the original manufacturer’s driver SPL and impedance curves into Eclipse, given that these are typically provided in PDF, JPEG, or PNG formats?
Curves from images? No. Impedance can be loaded into the Import tab, but it must be TXT file with 2 columns – Frequency and Impedance.
Alternatively, is there any converter software available to transform these curves into a format compatible with FIR design tools?
I’ve heard there are some tools around. Best try a Google search.
Note that driver manufacturer’s SPL measurements, unless specifically described, are typically made in an infinite baffle wall. The driver response will not be the same as in your cabinet.
Regards,
EA Support14 January 2025 at 7:00 am #976Hello, I tried to make LR2 linear phase from your sample file(System2 3way LF MF brickwall) you send me before. But unfortunately magnitude and phase is not very flat as you can see in the screen shot attached. Can you help me to see what I’m doing wrong?
Attached I’m sending project file.
Best Regards!
We’ll send a modified file back to you. Open your original file and the new file in separate FIR Designer M windows and study the differences. The primary difference is that you had all the “FIR Auto Mag” tabs set to minimum phase, not linear phase. We made some other adjustments on various tabs also.
Regards,
EA Support14 January 2025 at 6:40 am #975To import FIR filters into MiniDSP Flex, use the “Binary file (32 bit, float)” format from FIR Designer. This will save as a “.bin” file.
Also see:
https://docs.minidsp.com/product-manuals/flex/dsp-reference/fir-filtering.html>> into miniDSP Flex Eight directly as one of Presets?
In miniDSP Flex, FIR filters can be loaded individually onto channels, within the currently selected preset. For more information on Flex presets, you will need to read the miniDSP documentation.
Regards,
EA Support12 January 2025 at 9:07 pm #973Thank you. Now I succeed to import mls files. But I have problem with design of crossovers which is designed in VituixCAD by another person. I can’t find some blocks like LP1, BEQ in your list. Attached you can see details about the crossover I want to design. Could you help me to design such crossover in your software. Measurement files of that speaker are files which I sent you in previous emails. It seems to me very complicated. I studied your tutorials , but still I’m not able to design my first crossover in Eclipse.
LP1 sounds like Low-pass 1st order. In our software, choose a butterworth low-pass and set the order to 1.
I’m guessing BEQ is just a parametric filter.Regarding your analog circuit block diagram,
– the tweeter has two HP2 (high pass 2nd order) filter blocks which combine to be a 4th order high pass.
– the midrange effective has a 4th order low-pass, a 4th order high-pass and one parametric
– and the woofer effective has a 7th order low-pass, one parametric and a LEQ (which I don’t know). I think this 7th order is a mistake. It’s probably supposed to be a 4th order low-pass and a 3rd order high-pass.Regarding your target diagram,
– the tweeter appears to have a 4th order linkwitz-riley high-pass
– the midrange appears to have a 4th order linkwitz-riley high-pass and a 4th order linkwitz-riley low-pass
– the woofer appears to have a 4th order linkwitz-riley low-pass and maybe a 3rd order high-pass.In FIR Designer M you can use the IIR filters tab to implement all of these filters, and see the summed response. Choose “HPF LR” and “LPF LR” – both 4th order – and “HPF Butter” set to 3rd order.
Regarding your measurement files, they don’t appear to be useful; they are way too chaotic in both magnitude and phase. I suggest you go back to whoever made the measurements for you and have them redone. If they still look like this, maybe have someone experienced check the measurement equipment and measurement setup.
Regards,
EA Support12 January 2025 at 6:15 am #972Thank you for the MLS files. We are investigating now.
Regards,
EA Support9 January 2025 at 5:15 am #970Can you please email us some of the exported Klippel files? The email address is info at our domain, or send us a message through the contact form on https://eclipseaudio.com/contact/ and we’ll reply from that address.
Did this appear with 4.3.14 (which we released overnight)? Did you experience this with the previous 4.3.13?
Regards,
EA Support6 December 2024 at 6:34 am #967Mark, as Musan pointed out, the link to the 4.3.12 version for windows was actually serving 4.3.11. I’ve just corrected the link so try download again.
Regards,
EA Support5 December 2024 at 9:01 pm #964Actually we managed to replicate the problem and implement a fix. Version 4.3.12 is now ready for download.
(Thanks for finding this.)
Regards,
EA Support5 December 2024 at 10:53 am #963Email ‘info’ at our domain. The email address is on the website contact page also.
Thanks a screenshot would be very helpful.
Regards,
EA Support5 December 2024 at 6:15 am #960I’m sorry, we can’t replicate the problem. Can you email us a FIR Designer project where you see the problem? There may be something specific to the project that is triggering this.
Regards,
EA Support5 December 2024 at 6:03 am #959Noted. We’ll take a look. BTW FIR Designer is now up to 4.3.11. Can you try this and let us know if the problem is still present?
Also, are you on Windows or macOS? The codebases a slightly different.
Regards,
EA Support -
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