I'm using Audacity for transcriptions, thus I need a convenient tool to pull up/down certain frequencies.

Until now, when focusing on the bass parts, I'm using bass booster, and when trying to find upper voices, I use the equalizer. However, useless to say that this is very inconvenient.

Is there any "live" equalizer for audacity or any workaround? Or:is there a better tool for my needs?