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Viewing 15 posts - 106 through 120 (of 144 total)
  • 25 August 2020 at 10:27 pm #266

    >> What is the best distribution for the sample rates? Lower sample rate for
    >> the low channels and higher sample rate for the HF cannels?

    Yes. For a 2-way, 24 kHz for the LF and 48 kHz for the HF. For a 3-way, 12 kHz for the LF, 24 kHz for the MF and 48 kHz for the HF.

    >> That obviously means that I’II have to update to the very expensive FIR Designer M
    >> to be able to work with the XP1, XP2,… Lake modules.

    Like I said, the added complexity in the XP modules means it’s quite difficult to update FIR Creator EX and FIR Designer to work with them. We might update them in the future but we can’t give any time-frame. Also, the different sample rates on output channels don’t just affect the FIR filters; they also affect the IIR filters. FIR Creator EX and FIR Designer can’t display the summed response of all the channels – only FIR Designer M can do this.

    Best,
    EA Support

    20 August 2020 at 10:30 am #264

    >> I can design a 2W module in FIR Designer-EX and load the LF Filter and HF Filter to the emptyFir3Way unlocked module.
    >> Loading the LF Filter in way 1, quite with a green check ok.
    >> Loading the HF Filter brings up error 2 and after refreshing a green check ok to.
    >> A control measuring of the 2w speaker shows me the right response for the LF way, but the HF way
    >> cuts of too early (5K instead of 15K) and the phase is not correct.

    The Lake FIR 3-way module has specific sample rate requirements for the output channels. It sounds like you might be using the same sample rate for LF and HF. The allowed combinations are 48|24|12 kHz or any combination of 24 and 12 kHz.

    When doing a 2-way design, it’s best to have 3 projects – one per output channel – and mute the 3rd channel.

    >> Loading the same LF/HF filter Setup in a LAKE FX3 module
    >> And I wish (more important) that the Lake FX1 and FX 2 File also work together with FIR Designer EX.

    I think you are referring to the Lake XP 1, 2, 3 and 4 way modules in Lake Controller 7.0. I’m surprised FIR Creator EX could load something into these. Whilst the internal Lake API might pass some data, we don’t actually support the XP modules from FIR Creator EX and FIR Designer; only from FIR Designer M. The modules are far more complex than the Lake FIR 3-way module and their multi-channel capabilities are more easily handled by FIR Designer M.

    Best,
    EA Support

    7 August 2020 at 7:06 am #258

    Very high phase rotations, particularly close in frequency, can get lost in measurements due to smoothing. And so you can’t assume that they are actually there and therefore correctable with filtering. Generally if you find you need 8 x 2nd order all-pass filters, then I’d suggest revisiting your loudspeaker design. It sounds like there are time alignment issues or something else. Guiding you on loudspeaker design is outside the scope of our support. I’d suggest posting your loudspeaker design on other loudspeaker forums and asking for tips on how to optimise it.

    Regards,
    EA Support

    6 August 2020 at 10:08 pm #256

    Hi Kohno,

    Looking at the images in your PPT file, the measurement has 3×360 degree phase rotation coming into the Auto Phase tab. (This is quite unusual. Maybe you have a 12th order crossover filter?) If you’re trying to unwrap this phase, it’s better to address this manually on the Phase Adjust tab with 3 x 2nd order all-pass filters set for maximum phase. (The Auto Mag tab can’t always follow 360 degree phase rotations – particularly ones as steep as this – depending on the amount of smoothing in use.) And keep in mind a FIR filter with 3×360 degree phase rotation will be quite long.

    Best,
    EA Support

    5 August 2020 at 6:38 am #251

    Some plots don’t yet have editable colours.

    1 August 2020 at 9:34 pm #248

    Uncheck “Imp R” and you will see the IR of the filter.

    EA Support

    1 August 2020 at 8:46 pm #246

    It’s there. Toggle the “Show FIR filtered loudspeaker” checkbox. When unchecked, it’s the response of the FIR filter plug IIR, gain polarity and delay.

    EA Support

    27 July 2020 at 11:08 pm #243

    Noted.

    27 July 2020 at 11:06 pm #242

    Noted.

    24 July 2020 at 3:30 am #238

    I looked over your system and project files.

    The export format was set for “Binary file (32 bit, int)”, not “Binary file (32 bit, float)”. This will likely cause miniDSP to see NaN when importing.

    Regarding filtering, there was an 2nd order all-pass IIR at 38 Hz and a 2nd order maximum-phase all-pass on the “FIR Phase Adjust” tab but the tab’s “Enable” was unchecked. Try removing the IIR filter and checking the “Enable” on the “FIR Phase Adjust” tab. This should give you a FIR that unwraps the LF phase for the measurement in the project.

    Best,
    EA Support

    22 July 2020 at 9:46 pm #237

    Can you please email info at eclipseaudio.com and attached one of the bin files (that causes NaN) with miniDSP and the FIR Designer M system and project files used create the bin file?

    Best,
    EA Support

    22 July 2020 at 9:28 am #235

    What format are you exporting?
    I think miniDSP loads 32bit floating point binary files.

    Best,
    EA Support

    17 July 2020 at 9:28 pm #233

    Great. High delay in measurements is often the problem.

    Best,
    EA Support

    17 July 2020 at 7:08 am #231

    In the editor, click the IMG button and embed a link to an image sharing site.

    Best,
    EA Support

    16 July 2020 at 6:08 pm #226

    Can you please provide a screenshot of the Import tab and Auto Phase tab?

    Best,
    EA Support

Viewing 15 posts - 106 through 120 (of 144 total)