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Multi-Way Conventional loudspeakers with crossovers

rePhase, a loudspeaker phase linearization, EQ and FIR filtering tool
rePhase, a loudspeaker phase linearization, EQ and FIR filtering tool
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Old 26th June 2015, 09:16 AM   #691
orangeart is offline orangeart  United Kingdom
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Well done on getting to this milestone, I've not had a look yet but as always it will be my tool of choice when I next have filters to design.

Stefan
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Old 29th June 2015, 11:35 AM   #692
pos is offline pos  Europe
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Just a small bump.
It is important that users do update to this last version as it solves some major bugs.



Quote:
Originally Posted by pos View Post
rePhase 1.0.0 is out
rePhase download | SourceForge.net

Code:
1.0.0 2015-06-25
  * New functionalities:
    - Albrecht cosine windows implementation
      Ref: A Family of Cosine-Sum Windows for High-Resolution Measurements
    - multiple memory slots in range settings to be able to quickly go from
      one view to the other and focus on different aspects of the response
      curves
      These slots are preset with (hopefully) useful values but can be
      manually modified and copied.
    - "Load Settings From Clipboard" and "Save Settings To Clipboard" menu
      entries in order to be able to easily share corrections on web forums
    - frequency marker for the last correction point (5 seconds persistence)
    - fader values can now be manually edited to arbitrary values
  * Bug corrections:
    - bug correction in Minimum-Phase Filters tab: the polarity of low-pass
      Linkwitz-Riley filters of order (2*n+1)*2 was reversed
      (eg 12dB/oct, 36dB/oct, 60dB/oct, 84dB/oct, etc.)
      A warning will be emitted when loading correction files from prior
      versions using an odd number of such filters, as the polarity will now
      be correct and reversed compared to the prior bogus correction.
    - bug correction with higher than normal noise floor with even order
      taps (introduced in version 0.9.9 while solving a similar problem
      for odd order number of taps!)
    - bug correction with txt output file with 0.000(...)0 values
      (especially pregnant when using Hann window)
    - correction of the bogus flat top window implementation
    - corner case instabilities corrections (undue octal conversions on some
      value entries)
  * Adjustements:
    - set "32 float txt" as the default output format instead of "32bit
      LPCM wav" in order to avoid  rising the result noise floor because of
      the fixed point format
    - added de-empahasis and pre-emphasis presets in the Paragraphic EQ tab
    - added Linkwitz-Riley linearization orders 11th to 16th (why not?) 
    - reduce default phase EQ range to +/- 45° (was +/- 90°) and removed
      unpractical ranges
    - increase default EQ range to +/- 12dB (was +/- 6dB)
    - added 384 and 352.8kHz sampling rates as drop menu options for ease
      of use (any other value can still be manually entered)
    - got rid of the "Curves" tab for the time being, waiting for the
      capture functiuonality to be implemented in some future version...
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Old 29th June 2015, 04:31 PM   #693
more10 is offline more10  Sweden
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Thanks pos. Your work is very much appreciated.
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Old 30th June 2015, 06:17 PM   #694
Laotzu1 is offline Laotzu1  Denmark
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Many thanks. Your work is impressive. Rephase is absolutely my no. 1 programme for generating filters, so I admit: I am deeply depending on you.

As mentioned earlier in this thread; when do you accept donations?
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Old 4th July 2015, 08:37 AM   #695
pos is offline pos  Europe
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Thank you guys
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Old 4th July 2015, 09:20 PM   #696
GiAnt1961 is offline GiAnt1961  Italy
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Quote:
Originally Posted by Laotzu1 View Post
Many thanks. Your work is impressive. Rephase is absolutely my no. 1 programme for generating filters, so I admit: I am deeply depending on you.

As mentioned earlier in this thread; when do you accept donations?
I totally agree with your proposal. RePhase should be released at least as donationware. The work of Thomas is really mpressive and absolutely essential for all us. We must in some way support his diligence and wllingness.
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Old 28th July 2015, 01:19 PM   #697
j19861986 is offline j19861986
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I like the application
I would consider that there can be Microphone Calibration that can be loaded into rePhase
so I wouldn't always make new measurements
(I am a little fond of making custom calibration file, experimenting with sound)
It could be good if a feature like that, in rePhase
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Old 28th July 2015, 03:06 PM   #698
pos is offline pos  Europe
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Hi

rePhase relies on an external measurement software (such as HOLM, REW, ARTA, ...) to perform the measurement, gating, and smoothing.
The mic calibration is typically handled there as it is tightly linked to the context of the measurement itself (which mic was used? 0° or 90° calibration, etc.).

I don't see a situation where a user would want to change the calibration several times after the measurement has been taken like you describe.
Can you please elaborate?
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Old 30th July 2015, 10:30 AM   #699
j19861986 is offline j19861986
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I am experimenting with audio, I regularly change my calibration, I am trying to find my preferred audio setting for my sound system. (by experimenting sound)
And it is a need for me that I can load a calibration file into generator.
I have found some apps that can support my needs.
It could be a good feature if rePhase got it.
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Old 30th July 2015, 11:02 AM   #700
pos is offline pos  Europe
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I don't get the connection between the calibration file and the preferred audio setting.
The calibration file is not a matter of preference: it make the mic virtually flat.

Maybe you are referring to target curves?
This is a different matter altogether.

If you want to try different target curves then I would suggest you EQ for a flat response, and then use some additional EQ in a different bank to tailor the response to your specific needs.
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