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How to control the volume of Impulse Responses?

Posted: Fri Apr 07, 2023 8:42 pm
by orionka
Hey guys,
I'm capturing some devices with Lives IR measurement device and noticed huge differences in loudness when I convolve signals through those IRs.
I´m not 100% firm with the math behind this process, but tried a few things, like changing the volume of the IRs themselves. It didn't affect the output volume.
Can someone elaborate on that?

cheers!

Re: How to control the volume of Impulse Responses?

Posted: Mon Apr 10, 2023 10:19 pm
by [jur]
If you're sending the same measurement signal every time, then it's either the gain staging of the devices you're capturing, or your soundcard's preamp gain that changed between measurements.

Re: How to control the volume of Impulse Responses?

Posted: Tue Apr 11, 2023 5:32 am
by orionka
Hey, thanks for the reply. You mean the volume change is not related to the IR but the audio chain of the application?

I built a Mid Side encoder with Utility devices in an audio effects rack.
I then sent a sweep with -5dB and received the same level back.
I put the resulting IR in Lives convolution reverb and suddenly the signal was way too loud, like 48 dB... I think even higher.

Previously I captured a room correction curve and put the IR on a guitar pedal. The signal was way too quiet. I don‘t understand the volume change.
Do you have a clue?