Sound waves - Combined Frequencies

AI Thread Summary
The discussion revolves around analyzing the combined sound of two tuning forks at 384Hz and 256Hz. The key question is whether the resulting sound is closer to 256Hz or 384Hz, with an estimated complex wave frequency of 320Hz derived from the average of the two. The difference in frequencies results in a beat frequency of 128 beats per minute, which is also noted. Participants are seeking a method to evaluate the perceived sound similarity to either tuning fork. The conversation emphasizes the need for a formula to determine the auditory perception of combined frequencies.
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Homework Statement



Two tuning forks 384Hz and 256Hz.

The question asks - would the sound of the combined frequencies be more similar to the 256 or 384Hz tuning fork. Estimate the frequency of the complex wave (noting that the pattern is repeated over three times).

We are given two CRO traces (one 256Hz and one 384Hz tuning fork trace) and at the bottom of the CRO trace picture there appears to be a scale of 0.25 V/Div 5.005 ms/Div

Homework Equations



384Hz - 256Hz = will give you a beats per minute of 128

384Hz + 256/2 = will give you 320Hz at which the ear can hear.

However I cannot locate an equation that will assess whether the combined sound is closer to 256 or 384Hz.


The Attempt at a Solution




As above
 
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Any help here would be great.

Cheers
 
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