Fuzzmeasure vs rew driver#
Fuzzmeasure vs rew verification#
Fuzzmeasure vs rew software#

Set the sub level to match your target trace.Without changing the compensation delay, measure the Sub solo.Measure the Main solo and capture the trace.The amount of delay is arbitrary, but will save you time in step 6. This means that any change you care to make must be implemented directly in your output processor and then measured in real time. One of the reliable things about Smaart is that the data will never change after it is stored outside from the quick compare function. Listen to the result or audition multiple presets to find the one that sounds the best. To break a tie, use the option with less delay or less processing overall. VerificationĪfter you have tried several variations, choose the one who’s combined result best matches your preferred target. If you’d like to consult the Southern Oracle, you must first pass the Sphinxes’ Gate and the Magic Mirror Gate. If you’re aligned at 100Hz then try variations at +5ms INV, +10ms, -5ms INV, -10ms. For half cycles, add a polarity inversion. Once you have a single frequency aligned, test out other variations at half and whole cycles away.If the measured phase offset between two points is 200º, but the traces are near the top and bottom of the graph and you suspect that they need to wrap around, then 360º – 200º = 160º Δphase. If you need to wrap around the top and bottom of the phase graph then use 360 – ΔPhase.ΔPhase / 360 / Frequency * 1000 = time in milliseconds.It may be easier to see this in action on an unwrapped phase plot.Īpplying filters is a big topic outside the scope of this article, but if your interested, please see Phase Alignment Science Academy.Low-pass filters (LPF) will cause negative phase shift.High-pass filters (HPF) will cause positive phase shift.

For all-pass filters (APF): ΔPhase / 90º = Filter order to try.90º / 45 º = 2nd order (12dB/oct) filter (Butterworth, Bessel Normalized, and Linkwitz-Riley) Again, if you’re using a manufacturer’s preset, always start by following their guidelines.

Since the sources are equidistant, you might want to start with filters, but try both ways. Find the phase offset (ΔPhase) between main and sub, then close the gap. Maybe create presets for both and see which one your colleagues prefer in a blind listening test.Ī common first step is to achieve alignment at a single starting frequency within the crossover region where you have high confidence (coherence). Either follow manufacturer specifications or get creative and come up with your own path. Use delay, polarity, and filters to achieve your desired result. Where is the spectral acoustic crossover?įor efficiency, it is recommended to focus on the area of interaction at greatest risk of cancellation where magnitude values are within 10dB of each other, aka the combing and transition zones.

Fuzzmeasure vs rew software#

Shout out to SATlive for being the only software that I now of that includes a perfect addition trace so you can set initial levels without worrying about the alignment right away.įor everyone else, you can start by setting levels at -6dB relative to the target and you’ll probably need to do more adjustments in the end once you see the final result. This is why there’s a whole subroutine in my SubAligner app dedicated to finding the perfect level relationship to hit the desired target. With most tools you’ll be working in the dark, trying to imagine where the sum is going to end up. The goal is to hit the target in a single step. If you are designing a unity class crossover (0dB), this is surprisingly one of the most difficult steps because you want the end result to hit the target, not the individual measurements themselves.

Simply match solo measurements to the target and EQ out the summation bump at the end. If you are designing an overlap crossover (+0dB), this is easy. With permission from Merlijn van Veen Set Levels For subwoofers, this usually means going outside unless you have a very large room.

Fuzzmeasure vs rew driver#

Microphone placed equidistant from each LF driver at a reasonable overall distance in order to capture actionable data and still measure the entire loudspeaker as a whole instead of a single driver or port.

Grille-to-grille (coplanar, side by side).

Measure sources combined and verify summation against a target.

Do whatever is necessary to achieve alignment.

Although the steps with each tool might differ slightly, in general they follow this pattern: To fit this into a single article I will offer an overview of a single method for each software. For this reason this article will focus on creating alignment presets, which can then be modified in the field using simple distance measurements.

Fuzzmeasure vs rew verification#

The audio analyzer functions primarily as a verification tool.