I am using the equalizer to fine-tune the frequency response of my car audio system. While analyzing the output with Audiosystem Carma, I have noticed an unusual behavior:
When adjusting a high-frequency node, for example at 2000 Hz, the actual adjustment occurs around 1800 Hz. Similarly, setting 16 kHz results in changes around 14 kHz.
In the bass range, fine-tuning specific frequencies—such as reducing a peak at 50 Hz—does not seem to target the intended frequency precisely but instead affects the entire bass region.
The EQ is set to 32 bands, but even when increasing the number of bands, the issue persists.
Could you please provide insights into this behavior and suggest possible solutions?
I thought the EQ worked like a kind of bell filter with an automatically calculated q to approximately match the frequency steps between the filter bands.
That’s roughly how it is displayed. At least that’s how I see it.
I couldn’t find anything in the support forum about how exactly the EQ works in Symfonium.
Thanks, now I understand.
That’s a pretty strange way to use an eq.
Also not the way it is visualized.
Nor does it solve the problem in the bass range.
Because it doesn’t work as intended.
Here are 2 measurements from the output of my phone directly into my sound card.
Settings in the second picture.
Thin line is without EQ, thick is with EQ.
Frequency sweep from 20hz to 20khz.
As you can see, the 50hz setting (all nodes with lower frequency) works way too broadband and not as described in the Android library.
It’s buggy.
