The overall sound should provide the kind of loudness in which you are expecting. When you have decided the final settings for that specific track, select 'OK'. It is ok to leave the settings just how they are but if you are sort of a perfectionist, you can work them exactly to your liking. In order to utilize the compression filter, choose the whole track that you would like to compress, or at least a segment of it. Afterward, select the 'OK' button when you finish with it. It will then automatically increase the loudness, yet contain a variation of the integral loud peaks throughout the track.

The Audacity's compression filter will raise the certain low peaks and reduce other low peaks in particular recordings.

Try and make it a point of not going overboard on the silent aspect because if you choose too much, it can very well compromise the sound quality. The key objective is to simply choose a silent piece of the recording for your official noise profile.

Some people look at this specific sound as a bit of an appealing retro sound-effect but if you want it removed for a crystal-clear sound, it can easily be done. If you happen to hear an annoying noise that sounds like a hiss in your recording, it is most likely an issue for you. Plus, make sure that the white textbox equals the value of: -1.0 dB. Make certain 'normalized maximum amplitude to' and 'remove any DC offset (in the dead center on 0.0 vertically)'.

If your particular audio is a little on the quiet side, choose the specific track in audacity and the select 'Effect -> Normalize'. The level of audio is measured at dB and for any recording that is digital, the highest pitch it will typically hit is 0 dB but the objective is to reach that mark but never pass it.

Hard limiter audacity