Audacity Forum

I've never monitored it, but in my experience, raising or lowering the amplitude significantly does seem to change the perceived equalization.

Possibly less about "Perceived EQ," (loudness) and with more on the actual change of the EQ bias. The volume levels for each, before and after normalization changed the EQ.

About Chris's Compensator:

Theoretically the way this works it seems that you would loose the dynamics of the soft and loud passages experienced in classical music. I did used it and it seemed not to change the dynamics. Will test more.

Bobcat22 wrote:Possibly less about "Perceived EQ," (loudness) and with more on the actual change of the EQ bias. The volume levels for each, before and after normalization changed the EQ.

As you can see here, the Normalization effect does not change the Eq in any way: https://code.google.com/p/audacity/sour ... malize.cpp

Just in case it's not clear... The loudness curves are an ACOUSTIC effect that depends on the LOUDNESS of the sound hitting your EARS.

If you turn-up the volume, the bass SEEMS to be turned-up more. If you turn-down the volume, the bass SEEMS to be turned-down more.

This has NOTHING to do with audacity or the volume in the digital file. If you reduce the gain by 6dB in Audacity and then turn-up the playback volume by 6dB, there will be no change in loudness and no perceived change in EQ/frequency balance.

Possibly less about "Perceived EQ," (loudness) and with more on the actual change of the EQ bias. The volume levels for each, before and after normalization changed the EQ.

There is no change in EQ. Period. End of story.

It's not easy, in fact IT'S IMPOSSIBLE to accidently change the EQ of a digital file.

About Chris's Compensator:

Theoretically the way this works it seems that you would loose the dynamics of the soft and loud passages experienced in classical music. I did used it and it seemed not to change the dynamics. Will test more.

Did you try opera or classical music? If there are no dynamics to begin with it's harder to boost the dynamics.

Or, try experimenting with the ratio or hardness controls.