Add, Edit and Enhance Audio

Flixier's built-in audio tools let you effortlessly adjust volume, blend tracks, and use AI-powered enhancements to ensure your video sounds crisp and professional.

Adding Audio to Your Project

To add background music, voiceovers, or sound effects to your video:

• Import files: Upload your own audio files from your device, cloud storage, or link.
• Use built-in tracks: Browse Flixier's library of royalty-free music and sound effects directly within the editor.
• AI Sound Generator: If you need specific sound effects or ambient audio, use the integrated AI Sound Generator to describe what you want and instantly generate unique sounds.
• Add to timeline: Drag and drop your audio clip onto the timeline beneath your video track to begin editing.

Basic Audio Adjustments

Volume vs. Gain

While both tools affect how loud your clip is, they serve different purposes:

• Volume: Controls the level of the specific clip in your mix. By default, it sits at 100%. Open the Properties menu, select the Audio tab, and slide to the left to decrease the volume.
• Gain: Adjusts the baseline loudness and overall tone of the raw audio signal. It defaults to 0%. Navigate to the Audio tab in the Properties menu and slide left to decrease or right to increase the signal strength.

Audio Fade Transitions

Create smooth audio transitions to avoid abrupt starts or finishes:

1. Right-click the video clip on your timeline and select Detach Audio to separate the audio track into its own layer.
2. Click the separated audio clip to select it.
3. In the right-hand Properties menu, click Add Fade In, Add Fade Out, or both.
4. A yellow hue outline will appear at the ends of your clip. Drag the edge of this blue section to manually adjust the length of the fade transition. You can also adjust duration from the Properties menu.

Equalizer & Visualizer Tools

Equalizer (EQ)

Tweak specific frequencies to give your audio more punch, boost the bass, or make vocals stand out:

1. Select your audio clip on the timeline.
2. Go to the Audio tab in the Properties menu to locate the Equalizer.
3. Presets: Instantly apply engineered setups like Acoustic, Bass Boost, Loud, or Vocals. Presets include: 60s sound, Acoustic, Bass Boost, Classical, Flat, Hip Hop, Jazz, Loud, Rock, Treble Boost and Vocals.
4. Manual Tuning: Individually drag the frequency (Hz) sliders up or down to customize your sound profile.

Playback Speed

You can easily change the speed of the audio in the Properties menu. You will find that there is a slider you can adjust manually to find the perfect speed, whether that is slowing down or speeding up your audio. You also have the option to select different speed presets: 0.5x, 1x (standard), 1.5x and 2x.
 

Loop Audio

You have the option to loop your audio. Note that if you have any cuts in your timeline, you will see the following pop-up: You cannot loop a video if it’s cut or trimmed. Do you want to remove the cut? And you will be able to click the Remove cuts button to undo all trims and cuts. 

Audio Levels Visualizer

To monitor your audio frequencies and avoid clipping or distortion:

• Click the two rectangles located in the bottom-right corner of your preview canvas.
• A live visualizer panel will open next to your timeline, showing real-time playback levels.

AI-Powered Audio Enhancement

If you are dealing with background hiss, muffled dialogue, or uneven microphone levels, use the Enhance Audio tool to instantly clean it up.

1. Go to your main Flixier dashboard and find the AI Shortcuts section, then select Enhance Audio.
2. Choose a file from your existing Flixier library or upload a new one from your computer.
3. Select your target Enhancement Type (e.g., reduce background noise, clean up speech, improve overall quality, or fix loudness/levels).
4. Choose your Content Type to match your file's recording environment (options include Podcast, Interview, Studio Recording, Lecture, Conference, Mobile Phone, Voice Recording, or Music).
5. Click Enhance Audio to process the file. Once complete, you can download the polished audio or add it straight into an active editing project.