speaker_reflections

Experimenting with idea of having a speaker calibrated to play inverted sound wave on delay to actively cancel out reflected noise off of a wall

Original sound with no reflections:

With reflections:

Bouncing off of wall at x=100

Only showing reflections within certain radius of reflection focal point:

Drawing original signal + reflected sound in areas within distance of 160 from reflection focal point

With source playing delayed signal in addition to signal:

Where source is emitting f(x) + f(x-9)
(Seems to "reverse" in the area of the reflected sound)

With a speaker at focal point playing inverse of current source signal

Theoretical speaker would be behind the reflecting wall
(Sound in the area of the reflection now matches original signal)

Conclusion

From what I tried, it looks like the only way to totally cancel out the reflection would be to have a speaker that is able to emit from the focal point of the reflection (which would require it behind behind and emitting throught the wall)