5 ways to create Fade In/Fade Out sound effects on smartphones

Fade-in audio effects add a professional touch to your soundtrack, but editing audio often involves using complicated software. Luckily, your smartphone and a few simple apps make fading audio easy.

Table of Contents

• 1. WaveEditor for Android
• 2. GarageBand for iPhone​
• 3. Audio Editor Tool for iPhone
• 4. Lexis Audio Editor for Android
• 5. BandLab for iPhone and Android

1. WaveEditor for Android

WaveEditor is a versatile audio editing app for Android users that offers a wide range of editing features, including the ability to apply Fade In and Fade Out effects. WaveEditor supports a wide range of audio formats and allows for precise control over the fade effect. It is a great choice if you want something simple yet effective.

After launching WaveEditor, import your audio file by tapping the Browse button and selecting it from your phone. Next, tap the Macro option and select Fade In for the beginning or Fade Out for the end. You can adjust the duration of the effect using the slider overlaid on the waveform. After applying the fade, preview to make sure it sounds the way you want it to, then save your edited file.

The app also gives you access to a range of additional editing tools, such as multi-track mixing and macros like fade, reverse and invert. You can also undo, fix errors and batch format tracks into MP3, FLAC or WAV files before exporting them.

2. GarageBand for iPhone

GarageBand is Apple’s flagship music editing and creation app and is perfect for users who want more control over their audio projects. GarageBand is one of the best free music production software, but it’s also great for small edits like applying fades.

To add a fade, open GarageBand and create a new project by selecting the Audio Recorder or Track option , depending on the type of source you want to use. Then, import your audio file by clicking the + sign or dragging it into the workspace.

Select the Automation button , which looks like a squiggly line, and you'll see a blue line appear on the track, controlling the volume. Tap the blue line to add points, create a fade-in or fade-out effect.

You can adjust the points to shape the effect and preview the sound. When you are satisfied with your effect, export your project by tapping the Share button and choosing a format.

3. Audio Editor Tool for iPhone

If you’re looking for a less complicated but still effective GarageBand alternative, Audio Editor Tool is a great option for iPhone users. The app simplifies the audio editing process, making it easy to apply Fade In and Fade Out effects in just a few steps.

Open the app and launch the Audio Editor Tool, then load your audio file by tapping the Open button. Tap on the track and you'll see a number of options, including Fade In and Fade Out symbols .

Audio Editor will automatically apply the default effect, but you can adjust the fade duration by moving the slider. After applying the effect, you'll be presented with a preview. When you're satisfied, tap Save to save your edited file to your device.

The app has a few other tricks up its sleeve too – it can remove lyrics from tracks, it lets you add sound effects, and you can record any audio and edit it on the fly. It’s perfect for making quick edits and for anyone who doesn’t want to go through a complicated process.

4. Lexis Audio Editor for Android

Lexis Audio Editor is another highly functional Android app that offers a rich set of features for audio editing. The app supports a wide range of formats, including WAV , M4A , AAC , FLAC , and WMA , and allows for a variety of adjustments, including the ability to fade audio in and out.

Launch Lexis Audio Editor and import your audio file by selecting Open . Navigate to the waveform portion of the track you want to fade into. You can zoom in for more precise editing. Go to the Effects menu and select Fade In or Fade Out  depending on your needs. Lexis Audio Editor also allows you to adjust the length of the fade to suit your needs by adjusting the slider.

Listen to the results and when you're satisfied, save the file by clicking the Save button . With a clean interface and easy-to-use tools, Lexis Audio Editor is perfect for anyone who needs both simple and advanced editing features in one application.

5. BandLab for iPhone and Android

BandLab is an all-in-one music creation platform and social network for musicians. It integrates a variety of tools for composing, editing, and collaborating on music.

Open BandLab and start a new project by selecting Import File . Select the track you want to edit, then tap the track on the waveform, then tap the three white dots and look for the fade option . Use the slider to add a fade effect to the track.

Preview your track with the effect; you can adjust the curves as needed for smooth transitions. Once you're happy with the results, save or share your project. BandLab is especially great if you want cloud-based collaboration tools, and its fades are easy to apply without losing quality.

• Get BandLab for Android and iOS (Free, in-app purchases available)

Adding fade in and fade out effects is an essential skill. Luckily, it's easier than ever to achieve professional-sounding results with your smartphone. All of these apps make fading audio easy, and each offers different features depending on your editing needs.

Choose the application that best suits you and enjoy adding smooth transitions to your audio projects without complicated PC software.