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How to Change the Audio Volume in Audacity: 3 Ways

There are plenty of reasons why you should change the volume of your audio at Audacity. The recording may be too quiet or some parts may sound louder than others, but fortunately you don’t have to throw it away and start over again.

There are several easy ways to change the volume of audio in Audacity depending on your situation, and below we show you how.

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1. Set Gain Slider

One of the quickest ways to increase volume is to change the Gain slider on the audio track. This is to the left of the editing timeline below Audio track And Mute Buttons. By default, the slider is set in the middle, but you can move the slider toward it + Sign the right side and move it to maximize profits Sign on the left to reduce it.

Changing the slider does not change how the audio looks in the editing timeline, but you will hear the difference. This is also not a permanent change, so you can return the slider to 0 dB at any time to reset the audio gain to its original level.


This method has its limitations; You can increase it by +36 dB, or -32 dB if you want to reduce it. More importantly, using this method applies volume changes to the entire track. If you only want to adjust the volume of one option, you need to create a new track or try a different approach.

Note that audio gain is similar to volume but can mean different things when using DAW. If you need a quick refresher, read our description of Gain vs. Volume.

2. Normalize audio

To normalize audio in Audacity, select Effect> Normalize And set Normalize the maximum amplitude To the level you want. Click Preview Button and click if you want to check how it sounds All right To apply the change. See the screenshot above to see the difference in volume before and after audio is normalized.

Normalizing a track in Audacity changes the volume to reach the specified target. You can use it to increase the overall volume of your audio or apply it to a collection of different audio files so that they all sound almost “normal”. In other words, there is not one track that sounds more loud or quiet.

By default, the Normalize the maximum amplitude The setting is set to -1dB which is a good place to start. In short, the entire selection volume increases until a large portion of the audio, called the peak, reaches the -1dB target.

Keep in mind that increasing the volume of your audio will make any background noise louder on the track. This effect works both ways, so if you want to reduce the volume, set the target lower than the maximum amplitude (loudness point).


3. Use the Amplify Effect

The amplifier effect in Audacity may produce the same results as normalized, but there are some reasons why you should choose this option and not another. To use this effect, highlight and select your audio option Impact> Enhance. Again you have a choice Preview Or select All right To apply changes.

Now look at the options in the Amplify dialog window. First, you have the option to change the volume of your track using the slider, or you can do so using two input boxes if you want to enter the exact dB number.

By default, the first box is labeled Enhancement (dB) 0.0 dB shows how many dBs you need to increase to reach the target. This target is set by the second box labeled New Peak Amplitude (dB) And changing one affects the other.

Overall, it gives you three ways to change the volume: you can increase the volume by dBs in the first box, move the slider to change the volume, or set the target volume using the second box.

The main difference between normalizing and amplifying is how it affects the left and right channels of the stereo track. With normalization, the left and right channels are switched independently to reach the target level. However, with amplifier, the volume of the left and right channels is changed at the same rate.

What method should you use?

All three methods work to increase or decrease the volume of your audio, so which method should you use? Although it depends on the situation, there are some general guidelines you can follow.

For starters, the Earn slider It is best to apply small changes in volume to the entire track. But once you start putting more than one audio clip on the track, you may want to change only one specific partition. If so, then use To enhance Or Make it normal To permanently increase the volume of the selection without changing anything else on the track.

In the two options, select To enhance If you want to increase the volume of the track evenly for loud and quiet parts. On the other hand, use Make it normal At the end of your workflow to make sure your track sounds louder than other tracks you can listen to on Spotify.

There are plenty of creative uses for Audacity and as you develop your audio editing skills, you will learn exactly when to use each method. But for now, knowing how to change volume can help you produce more polished audio.

If you want to start using Audacity to its full potential, check out our guide on how to make music with Audacity at home.

More than one way to change the volume in Adacity

Changing the volume of audio is one of the most practical skills you can learn when it comes to audio editing. There are more than one way to do this, each with its own advantages. Now that you know what these volume-shifting effects and accessories are, you can start mixing your audio for even better results.

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