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.
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.
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.

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.