The correct response is:
decrease the amount of interference and increase the beat frequency.
When a piano tuner hears a beat frequency, it indicates that the pitch of the piano wire is slightly out of tune with the pitch of the tuning fork. By adjusting the tension in the piano wire (by either tightening or loosening it), the frequency of the piano wire can be made to match the tuning fork more closely, which will reduce the beat frequency. If the tuner wants to match the tones more closely (thus decreasing the beat frequency), they would adjust the tension until the beats are minimized. However, if the goal is to find the point where the tones are closer in pitch, the tension will need to be adjusted until the interference becomes consistent with the desired frequency.
1 answer