John Mulcahy's latest activity
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John Mulcahy replied to the thread SPL Logger: How to ignore/reset initialization spike? (LAFMax & LZpeak getting stuck).Open the SPL meter first, use Reset all once everything has settled then start the SPL logger. -
John Mulcahy replied to the thread Can i run 2 SPL meters?.Pretty much. There's an spl-meter endpoint to control the 4 SPL meters and I'll add an spl-logger endpoint for the logger. I'll include...
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John Mulcahy replied to the thread Can i run 2 SPL meters?.Calibration offsets are stored per device and, if "Separate cal for each input" is selected, per input channel on the device. The...
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John Mulcahy replied to the thread Can i run 2 SPL meters?.I'm afraid not. Calibration is interactive, so isn't a good candidate to trigger via the API. I can add API spl-meter commands to open...
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.There is now an example of using the API to evaluate QC pass/fail measurements at https://github.com/audiomacgyver/rew-iqc
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.That's a graphics driver issue. Run the installer again and deselect the option to use hardware graphics acceleration.
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John Mulcahy replied to the thread IMD Measurements: "Generator" vs "Input" Level Discrepancy.It would seem that would only be an issue if distortion levels at the start of the test are higher than those at the end of the test, so...
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John Mulcahy replied to the thread Can i run 2 SPL meters?.The logger only works on the first input. There are SPL meters for the first 4 inputs in the Tools menu. If you don't want the Pro...
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.You can double click a measurement to make it the current selection, and use the Alt+up/down arrow keys to make the next or previous...
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John Mulcahy replied to the thread Excess Group delay show in overlay possible or maybe can add in future ?.Of course, it is a minimum phase response. You are using the wrong LF slope, the response will roll off according to the filter plus...
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John Mulcahy replied to the thread IMD Measurements: "Generator" vs "Input" Level Discrepancy.The AudioSystem getMixer method will throw that "mixer not supported" exception if it cannot find any audio mixers that match the...
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John Mulcahy replied to the thread Excess Group delay show in overlay possible or maybe can add in future ?.No, it doesn't, it shows the effect of you using an entirely inappropriate stimulus. An unwindowed burst has a lot of high frequency...
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John Mulcahy replied to the thread Excess Group delay show in overlay possible or maybe can add in future ?.Use the tails to correctly generate the minimum phase response, they let REW know how the response behaves at the lowest and highest...
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.Builds updated today (beta 119) with these changes: Added: German translations of the interface courtesy of Andreas Lartz Added: The...
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John Mulcahy replied to the thread Low level when measuring subwoofer.Looks like the input is all zero, usually indicates that access to mic inputs is not permitted in the OS.