foo_subwoofer

boxerfan88

Well-known member
Doing some itchy backside bo-liao stuff. See if I can learn anything from this research exercise or not. Ha ha.

Objective - reverse engineer and study the behavior of the foo_subwoofer delay settings on real audio signals.

First step was to think of a test signal that will get split by the foo_subwoofer crossover, and away from the crossover point. Don't ask me how I came about choosing the frequency. I just hallucinated the figure 65Hz. So it shall be - a mix of 65Hz fundamental and it's 8th harmonic (520Hz).

Next, I used REW to generate two sine wave files, one 65Hz, and the other 520Hz. Then I used Audacity to mix them together.

2024-01-30-22-22-23-Sine-65-12-d-BFS-44k-PCM24.png


Test play the signal, all good.

Now to use Audacity to record the reproduced sound at the MLP for the different delay settings ... from -20ms to +20ms.
 
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