[eddie kim]

eddie kim

27 January 2026 at 9:03 pm #501198

When creating a minimum phase filter, what’s the difference between setting the filter delay to 0 (the impulse peak is 0) and delaying it by a few samples?
In other words, is there a difference between a filter that ignores the rising edge of an impulse and a filter that preserves part of the rising edge?

[eddie kim]

eddie kim

16 June 2025 at 8:13 pm #1072

I have already contacted Rational Acoustics but have not received a proper answer.
Anyway, I always set Filter-Delay to 0 in FIR Designer and assign the entire length of the Filter TAB to the Magnitude control only.
This is to slightly increase the resolution of the low frequency control within the limited number of filter taps.
I wonder if this Filter-Delay setting of 0 is not a problem? I wonder if I am making some kind of logical error that I am not aware of yet.

[eddie kim]

eddie kim

8 June 2025 at 5:20 pm #1063

‘Reset Measurements Refresh’ works fine. It was my mistake.

For RTA, Smaart is set to “No Banding” and “Octave Banding” changes the tilt angle. This is a natural result in RTA as we know.

However, if I import RTA data with banding set to “None” and then run ‘Octave smoothing’ the tilt does not change.

When importing RTA data, it seems that the smoothing function should be changed to banding and the tilt angle should change according to the setting.

Of course, if I set it to 1/48 octave in Smaart and then import and smooth it, there is no problem in using it.

• This reply was modified 8 months, 4 weeks ago by eddie kim.

[eddie kim]

eddie kim

29 August 2024 at 9:57 am #905

This issue only appears in older demo versions. I just tested it again and the full version I’m using on my Mac doesn’t show this issue. Sorry for the confusion.

• This reply was modified 1 year, 6 months ago by eddie kim.

[eddie kim]

eddie kim

29 August 2024 at 9:31 am #904

I tested it by changing the order of the monitors. When using two monitors, the pull-down menus and pop-up windows are always displayed on the opposite monitor.

[eddie kim]

eddie kim

12 July 2024 at 5:58 pm #845

The zero adjustment slider is a very convenient function.
I find this very convenient in the process of keeping the filter sample below 1.
I hope they keep this feature.

• This reply was modified 1 year, 7 months ago by eddie kim.
• This reply was modified 1 year, 7 months ago by eddie kim.

[eddie kim]

eddie kim

7 June 2024 at 7:45 pm #831

Thank you for answer.
Is purchasing Smaart Modeler the only way to emulate MESA PEQ at this point?

[eddie kim]

eddie kim

7 June 2024 at 6:26 pm #828

Isn’t it possible to apply MESA EQ emulation at least to the IIR filter?

[eddie kim]

eddie kim

5 March 2023 at 11:00 pm #629

Thank you for your support.

I’m using Smaart version 8.

I’ve already read that page about FIR import formats.
REW main window > click measurement > export to txt > OK to import to FIR-designer
But REW RTA Window > Save Current > Export to txt > Import FIR-designer > impossible..please try to test it.
Best regards

• This reply was modified 2 years, 12 months ago by eddie kim.
• This reply was modified 2 years, 12 months ago by eddie kim.
• This reply was modified 2 years, 12 months ago by eddie kim.

[eddie kim]

eddie kim

14 July 2022 at 5:30 pm #517

Doesn’t the latency increase if I create only the Magnitude without adjusting the Phase like the Minimum phase FIR file I made?
(I haven’t tried generating the phase control file in Symetrix yet.)

I use 8 measuring microphones to average the response of the room. Then repeat this process, slightly changing the microphone position to get a very accurate room response. This is why I use the no smoothing option.