John Mulcahy's latest activity
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John Mulcahy replied to the thread REW measurement issue.You are probably seeing the time of flight delay from speaker to mic, plus any processing delay in the DSP, since the t=0 point is set... -
John Mulcahy replied to the thread Issues with latest MacOS beta versions.Well that's one mystery cleared up, thanks! I have fixed that for the next beta, it should just save the single measurement.
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John Mulcahy replied to the thread New FlexASIO Control Panel.No, it isn't limited to two channels, but the choice of Windows backend may affect what is offered. Try DirectSound.
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John Mulcahy replied to the thread REW as FIR maker.I have fixed that for the next beta. Just windowing the IR won't give you an IIR equivalent, you need to create a minimum phase version...
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John Mulcahy replied to the thread Issues with latest MacOS beta versions.Are you using a timing reference output Greg? I think I have found some odd behaviour when changing sample rate from the Measure dialog...
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John Mulcahy replied to the thread Issues with latest MacOS beta versions.There was a report of the file dialog not appearing on macOS last September, restarting the laptop seemed to fix it. More on that one...
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John Mulcahy replied to the thread Brand new and totally lost - can anyone please help?.You can have a go, but a couple of parametric filters will likely have much the same effect in the range you measured.
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John Mulcahy replied to the thread REW as FIR maker.If you want examples of IIR filter responses set up the filters in the EQ window and use the File menu option to export the filter IR.
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John Mulcahy replied to the thread REW Beta Release REW Linux installer (requires Java 8).OpenGL needs to be enabled, see https://www.avnirvana.com/threads/rew-linux-5_20_beta_26-bug-report-on-waterfall-graphs.5785/#post-43765
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John Mulcahy replied to the thread New FlexASIO Control Panel.Those are the equivalent of selecting a device in the ASIO4All panel. The preferences drop downs show the inputs and outputs of the...
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John Mulcahy replied to the thread REW as FIR maker.The window reference time (and t = 0 for that matter) are not restricted to sample boundaries, so I'm not sure there would be any...
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John Mulcahy replied to the thread REW as FIR maker.Is that to help with the windowing somehow or is the underlying aim to more easily choose an export length?
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John Mulcahy replied to the thread Trying to match RTA on REW+uMik with NTI device.Leq is only available for broadband SPL.
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John Mulcahy replied to the thread Trying to match RTA on REW+uMik with NTI device.There are 1 minute and 10 minute Leq figures in the SPL logger, there isn't a 30 second figure. Differences in the RTA figures are...
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John Mulcahy replied to the thread (Beginner) Correct test signal path/chain?.The laptop would be fine, the conversions will not make any difference. Test discs do not have the signal REW uses for measurement. You...