REW Beta Release REW Linux installer (requires Java 8) V5.20 beta 4

The Oracle Java runtime seems to work best

  1. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy submitted a new resource:

    V5.19 beta 4 Linux installer (requires Java 7 or 8) - The Oracle Java runtime seems to work best

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  2. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated V5.19 beta 5 Linux installer (requires Java 7 or 8) with a new update entry:

    V5.19 beta 6 Linux installer

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  3. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 7 Linux Installer[/plain]

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  4. John Mulcahy

    John Mulcahy REW Author
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  5. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 8 REW Linux installer[/plain]

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  6. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 9 Linux installer (requires Java 7 or Java 8)[/plain]

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  7. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 10 for Linux[/plain]

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  8. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 11 for Linux[/plain]

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  9. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.19 beta 12 for Linux[/plain]

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  10. John Mulcahy

    John Mulcahy REW Author
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  11. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 7 or 8)[/plain] with a new update entry:

    [plain]V5.20 beta 1 Linux installer[/plain]

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  12. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 8)[/plain] with a new update entry:

    [plain]REW Linux installer V5.20 beta 2 (requires Java 8)[/plain]

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  13. vice

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  14. John Mulcahy

    John Mulcahy REW Author
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    That came up a while ago, can fix it by explicitly enabling opengl by adding

    -Dsun.java2d.opengl=True

    in the roomeqwizard.vmoptions file in the REW program directory - see this post.
     
  15. modmix

    modmix New Member

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    Running 5.20 Beta 2 rises questions:

    Attached is an animated image showing some screenshots (Low-distortion Audio-range Oscillator 1kHz 0.64 Vac +/- 0,06% ; RTX6001 (cf. DIY Audio Analyzer with AK5397/AK5394A and AK4490) @96kHz; UbuntuMATE 8.10)
    • 100Hz spaced spurs
      • "appear" after some minutes
      • amplitude varies some db after they have grown to some size
        • is that a measurement artefact?
          If so: any chance to remove it?
    • averaged result rises with time
      • -6.9dBFS => 27.1dBFS after 77 min
        • looks to me that the average building has flaws...
    Input Linux 20181228 animated.gif

    All the best for 2019
    Ulli
     
  16. John Mulcahy

    John Mulcahy REW Author
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    Is everything in the chain running at the same sample rate, i.e. no OS resampling? A buffer underflow or skipped samples could cause that, if resampling runs out of data eventually. I have a test running but no sign of any issues in the first 15 minutes.
     
  17. John Mulcahy

    John Mulcahy REW Author
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    This is after 76 minutes, looks the same as it did after 15 minutes. I think what you are seeing must be due to interruptions in the audio data getting to REW or something suspending REW processing long enough for a block to be skipped.

    rta76.jpg
     
  18. modmix

    modmix New Member

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    Thanks for looking at it!

    Was that on Windows?
    The reported behaviour was on Ubuntu.
    hmmm...
    There are two input devices under Ubuntu: "default [default]" and "R20 [plughw:1.0].
    To avoid the "default" low pass, I did choose "R20" - could that be a problem...?
    Anything else in Ubuntu that might cause interruptions or so...?

    Happy new year!
    Ulli

    REW RTX6001 Victor1kHz 96k Ubuntu default vs. R20.jpg
     
  19. John Mulcahy

    John Mulcahy REW Author
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    I tested on Windows and macOS, I don't have a Linux test system but the REW code is the same for all. After starting the RTA wait long enough for the RTA length to be filled (about 11 seconds at 96k) then reset the averaging.

    Edit: I have changed the behaviour for the next beta so that after starting the RTA or changing the FFT length averaging does not begin until 2 full FFT lengths of data have been received, to save having to use the reset averaging button to clear out the effects of the partially filled data buffer.
     
    #19 John Mulcahy, Dec 31, 2018
    Last edited: Dec 31, 2018
  20. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 8)[/plain] with a new update entry:

    [plain]REW V5.20 beta 3 Linux installer (requires Java 8)[/plain]

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  21. John Mulcahy

    John Mulcahy REW Author
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    John Mulcahy updated [plain]REW Linux installer (requires Java 8)[/plain] with a new update entry:

    [plain]REW V5.20 beta 4 Linux installer (requires Java 8)[/plain]

    Read the rest of this update entry...
     

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