This will make your voice sound a little deeper, which is generally desirable (think James Earl Jones or Martha Stewart). Spoken word podcasts typically sound better when the low level frequencies are boosted and the higher frequencies are reduced. Give it a quick preview and if everything sounds good click OK.
Leave the New Peak Amplitude setting at 0.0 and do not check the box to allow clipping. Audacity will recommend an amplification setting by default, which is typically what you want to use. To do this select the entire waveform and click on Effect > Amplify. If you open your audio file and the volume levels look rather flat, you’ll want to run the Amplify Effect. Your peaks should spread pretty evenly through the 1 to -1 (dB) range. The first step is to get a good waveform. Learn More: The Complete Audacity Tutorial for Podcasters