solderdude
Grand Contributor
Hmm, what do you say about this comparison?
DAC volume matched at 2khz
Same song, same first bass beat. Zoomed way in to select start of first beat to the start of next beat. Same amount of time selected to create frequency analysis.
It would seems they don't behave the same in multiple area in term of energy level for many frequencies. ~440 HZ is one area of interest. Top of each picture is Gustard. Bottom of each picture is Topping.
Or is this all for naught again? Bad ADC that caused the differences?
View attachment 112426
View attachment 112427
When you are venturing in this type of measurements perhaps it is time not to wing it using UCA202 but to buy something more decent/reliable.
You are measuring micrometers with an ordinary ruler.
Try @pkane his nulling software. That is way more suited for these kinds of tests AND lets you listen to the differences as well. You can even post that and have some objective evidence.