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TheBetterMethod

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  14. Trunk Sealage Round 3 [Need SPL Help]

    in Member Rides & Builds -- Show off your whip, Show off your System!

    Posted

    Phase cancellation:

    The relationship in time of two or more waveforms with the same or harmonically related periods gives us a measurement of their phase difference. Phase cancellation occurs when two signals of the same frequency are out of phase with each other resulting in a net reduction in the overall level of the combined signal. If two identical signals are 100% or 180 degrees out of phase they will completely cancel one another if combined. When similar complex signals (such as the left and right channel of a stereo music program) are combined phase cancellation will cause some frequencies to be cut, while others may end up boosted.

    You can google it more if you want. I would try the port flip though.

  15. Trunk Sealage Round 3 [Need SPL Help]

    in Member Rides & Builds -- Show off your whip, Show off your System!

    Posted · Edited by TheBetterMethod

    Cancellation caused by the waves being out of phase... crap man, I don't know how to explain it... I fail.

    If you had the car sitting in the sun while it was charging and cabin heated up, I would expect that to cause a drop on TL.

    To get consistent results and honest results, you have to eliminate all the variables possible. At that point it becomes scientific.

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