G7 electrical "hum" problem

[gyraf]

Test a known (good quality, full range) loudspeaker in the chamber as-is. Make chart.

Substitute their mic for yours, run same-test, same-loudspeaker, same-everything.

Subtract the two charts - and you have a readout of your mic compared to theirs. If they have a good linear reference mic (they should), you have now a readout of yours.

If possible, make charts of all three pickup patterns - and if you want to overdo it, a polar chart of freq.resp. vs. incoming sound angle....

Jakob E.

 

[bazmcc]

Thanks Jakob, I thought it would be something along those lines, it confused me when my lecturer said they wouldn't have the right equipment!!