I need an equalizer capable of equalizing/mixing my Mic in real-time. Here's what I'm doing:

- I set up my guitar + pedal, and plug them into my Mic's line;
- I then record the output with Audacity

The problem is, I only have this single pedal (Zoom G1), and it's audio is too "closed", if you know what I mean. If i had more pedals or even a real Amplifier I could do "open" the audio more. So, I record this "closed" audio with Audacity, then "open it up" a bit with Audacity's Equalizer effect.

I don't want to wait till I'm finished recording to equalize the audio, I want to be able to equalize it in Real-Time. What program can I use for this?

PS: It's license must be GPL or compatible.
PS2: It's not a system-wide equalizer, but a Mic-Only equalizer.

Running jack would bring you a lot of different audiotools (e.g. eqs), to be used realtime through an excellent "wiring" system.

A completely different approach: have you tried guitarix?

Thanks! Guitarix is actually pretty good

http://jackaudio.org/
http://wiki.linuxaudio.org/wiki/start