Hey guys,
I'm working on designing a system that will track where a person is in a given room and adjust the phase of the audio signal independantly for each speaker in the system. The result would be pure constructive interference of the sound waves, giving the best quality of sound.
My problem is I haven't been able to find a circuit to adjust the phase of the audio signal using a bias voltage input. Are there any well known methods for doing this? I've stumbled across a few such as an all-pass filter with a digital potentiometer to adjust the phase, but it doesn't seem to work out as I had planned.
Any ideas?
I'm working on designing a system that will track where a person is in a given room and adjust the phase of the audio signal independantly for each speaker in the system. The result would be pure constructive interference of the sound waves, giving the best quality of sound.
My problem is I haven't been able to find a circuit to adjust the phase of the audio signal using a bias voltage input. Are there any well known methods for doing this? I've stumbled across a few such as an all-pass filter with a digital potentiometer to adjust the phase, but it doesn't seem to work out as I had planned.
Any ideas?
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