John Mulcahy's latest activity
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John Mulcahy replied to the thread Helping to solve Phase measurements being inconsistent with acoustic timing reference and Analog Loopback question.No, they can and should all use the same reference since the mic should be staying in the same place. -
John Mulcahy replied to the thread java.lang.OutOfMemoryError:.Can you make the file available somewhere? Also please use the option to generate a diagnostics file in the Help menu and attach that file.
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John Mulcahy replied to the thread Rew stop during measurement.Those were not patches, just the current state of the beta build back in March 2024. The current build has the same fix.
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John Mulcahy replied to the thread java.lang.OutOfMemoryError:.When REW is installed there is a step to specify the memory to allocate, it you already allocated 4 GB that way you can try setting a...
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John Mulcahy replied to the thread Overlay different distortion readings on the same window?.Overlays window
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John Mulcahy replied to the thread Sweep noise..An impulse response.
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John Mulcahy replied to the thread Helping to solve Phase measurements being inconsistent with acoustic timing reference and Analog Loopback question.If you use Estimate IR delay on each measurement you are abandoning the timing reference and removing relative timing information...
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John Mulcahy replied to the thread Overlay different distortion readings on the same window?.Use the Distortion graph in the Overlays window. You choose what distortion metric to plot in the graph controls.
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John Mulcahy replied to the thread Optimal REW settings for measuring amplifiers.It's a little difficult to manage. All the legend entries for the various graphs need to keep the same width. I can adapt the width to...
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John Mulcahy replied to the thread Saving loopback calibrations.Shouldn't matter, but you can always try a few measurements at different gains to see if the interface cutoffs vary. With some...
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.Works for me.
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John Mulcahy replied to the thread Saving loopback calibrations.No, select the loopback input and output and use the "Calibrate soundcard" and "Make cal file" buttons on the soundcard preferences.
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.This is the latest beta for the next release (5.40), the current release is 5.31.3, the version on the REW website.
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John Mulcahy replied to the thread Optimal REW settings for measuring amplifiers.The noise floor figure for stepped level THD measurements is the maximum noise level within a one octave span centred on the the...
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John Mulcahy replied to the thread Difference Vector Average and RMS + Phase.In vector average the magnitude response depends on the relative phases of the signals being averaged. In RMS + phase average it doesn't.