John Mulcahy's latest activity
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John Mulcahy replied to the thread real time analyst?.You could play pink periodic noise and use the RTA, suitable RTA settings are included in the linked help. -
John Mulcahy replied to the thread REW Beta Release REW API beta releases.Builds updated today (beta 133) with these changes: Added: AirDSP by Acoustas equaliser entries Changed: siggen.properties has an entry...
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John Mulcahy replied to the thread REW Beta Release Problems with Thiele-Small parameter estimation from free-air impedance curve.No, the electrical impedance model has a dR component to allow for measurement errors and the effects of coil temperature. If there...
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John Mulcahy replied to the thread how can see port noise in measures, or how measure port noise best ?.Sweep measurements are designed to reject uncorrelated noise. Use the RTA with a tone.
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John Mulcahy replied to the thread EQ based on resonances?.Yes, that's a reasonable approach, and it's why the EQ window has tools to find resonances, show live updates of the predicted waterfall...
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John Mulcahy replied to the thread bug: minimum phase version when exported is ~ 3dB lower than its non minimum phase.I have fixed that for the next build, in the meantime you can scale the IR data on the Impulse graph by 3.01 dB before export.
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John Mulcahy replied to the thread measurements of the same source from different positions.RMS averaging or moving mic method probably best for that.
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John Mulcahy replied to the thread measurements of the same source from different positions.Use cross correlation alignment and vector averaging if you need to with with an impulse response, for EQ RMS or dB averages are often...
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John Mulcahy replied to the thread Really newbie question about the estimated time delay.The alignment tool impulse alignment mode uses zero phase 1/3 octave filters. The Filtered IR graph is primarily aimed at examination of...
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John Mulcahy replied to the thread Weird time domain issues with measurements.That's because the imported impulse responses only have that much data, typical of Audyssey imports. For longer responses measure with REW.
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.That's outside the scope of REW. Low level access to interfaces is handled by code the Java runtime loads, it is possible to substitute...
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John Mulcahy replied to the thread Really newbie question about the estimated time delay.
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.I don't know what Q configuration Trinnov uses, you can find out by measuring the filter shapes it produces with different settings on a...
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John Mulcahy replied to the thread Really newbie question about the estimated time delay.Estimate IR delay uses cross-correlation with a minimum phase version of the response, it isn't suitable for alignment though. For that...
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John Mulcahy replied to the thread REW Beta Release REW API beta releases.There's an option to append the level to the measurement name on the Measure dialog.
