Split/adjust/mute/detach Audio

In this following guide, you will learn how to:

1. Add Background Music

Adding background music can drastically change the tone of your video. Filmora9 provides a royalty-free music library you can access within the program, or you can import your own music.

Here are a few ways to add background music to your videos.

Note: the music and sound effects found within Filmora9 are for personal, non-commercial, use only. Click here to learn more >>

Import Music from your Computer: Select an audio file that's stored on your PC and bring it into Filmora9.

Click theimport music button above the Media Library panel to browse for audio files in your computer. When you find the song or other audio file you want, select it and import it into the Media Library. You can also drag and drop audio files into the Media Library. From there, you can drag and drop your audio into an Audio Track in the timeline.

Using Music from Filmora9: choose a song from Filmora9’s royalty-free audio library and use it for free. The audio library has 50 songs divided into five categories: YOUNG & BRIGHT, TENDER & SENTIMENTAL, ROCK, FOLK, and ELECTRONIC. There are also sound effects available under SOUND EFFECT.

select theme music

Here are two ways you can add music from the audio library to your video:

  • Select a song, right-click, and choose Apply
  • Drag and drop the song into the Timeline

Once you've added your music, double click on the music in the timeline to bring up the Audio window. In this window you can adjust the volume and pitch of the music. You can also apply fade-in or fade-out effects and use their sliders to determine how long they will last.

Note: you can add up to 100 audio tracks.

2. Split Audio

In the timeline, move the playhead to the point in your audio clip where you want to split it. Then, right click on the clip and select "Split" or click the Split button in the toolbar above the timeline.

3. Adjust Audio

To make adjustments to your audio, double click on the audio clip you want to work on in the timeline to open a panel with adjustment sliders for volume and pitch. You can also apply Fade in/out effects and adjust their lengths here.

Another tool you’ll find in this panel is Denoise, which is a feature that can remove background noise from your audio clips.

For a more advanced audio editing experience, you can also access the Audio Equalizer from this panel. You can choose from presets or make manual adjustments by clicking ‘Customize’.

Give it a listen when you are done and, if you’re not happy with the results, click Reset to start over.

audio editing Filmora

4. Mute Video Clip

To mute the audio in a video clip, right click on the clip in the timeline and chooseMute.

Mute video clip

5. Detach Audio from Video

You can detach the audio from a video clip without changing the original clip. To detach audio from video, right click on the clip and select Detach Audio. The audio will be detached from the video and automatically placed in an audio track.

audio editing Filmora

The detached audio clip will be automatically placed in the audio track, you can either choose to delete it or edit it for using.

6. Replace the original audio of the video

To remove the original audio and add a new audio clip to a video, please follow the instructions below:

After adding the video clip to the timeline, right click on it and select Audio Detach. The audio will be detached from the video clip and placed in an audio track.

Import the audio file you want to use from your computer or add music from the Audio library to an audio track. If you are using a higher quality version of the audio which you detached, drag it to an audio track underneath the separated audio and make sure the wave forms line up to sync it. Then, select the detached audio clip and delete it.

7. Add Voiceovers

To add a voiceover, go to media panel and select Record Voiceover under Record to bring up the Record Audio window.

record voice over

Click on start recording a voiceover and you will have 3 seconds before the recording starts. Once you are finished recording, click stop recording a voiceover. The voiceover clip will automatically appear in the Timeline.

Voiceovers  recording  Filmora

If you want to record another voiceover, keep the Record Audio window open. In the timeline, move the playhead to a new position and click on start recording a voiceover again to record.

Tip: To remove a recorded voiceover, right click on the voiceover clip in the timeline and choose Delete.

8. Trim audio clips

Trimming audio clips works exactly the same as trimming video clips. Click here to learn how.

9. Customize Timeline Track Controls

Adding New Tracks

To add a new video or audio track, click the Plus icon in the left upper corner of the timeline and then select Add Video Track or Add Audio Track. The track will be added.

customize track  Filmora

To add multiple tracks at a time, select Open Track Manager and then enter the number of tracks that you want to add. In the Track Manager panel, you can also customize the placement of the new tracks (i.e. whether they should be before or after an existing track).

customize track  Filmora

Deleting Empty Tracks

To delete empty video and audio tracks, click the Plus icon in the upper left corner of the timeline panel and then select Delete Empty Tracks. All empty video and audio tracks will be deleted.

Adjusting Track Height

Click the Plus icon in the left upper corner of the timeline panel and then select Small, Normal, or Big under Adjust Track Height.

customize track  Filmora

10. Adjust audio volume

There are several ways to adjust the volume of your audio in Filmora9:

To adjust the volume in the Audio panel: after you drag and drop the audio file into the timeline, double click on it to open the Audio panel.

In the volume section, drag the slider up or down to adjust the volume.

To adjust the volume in the timeline: Move your mouse over the volume band in the audio clip and the pointer will change to a hand icon volume handle Filmora .

Drag the handle up to increase the volume and drag it down to decrease the volume.

If you want to adjust the left/right balance, enter a numerical value or drag the knob in the Balance circle. A numerical value of 0 means the audio is balanced, -100 is all the way to the left and 100 is all the way to the right.

audio volume editing  Filmora

If you need to have the volume increase and decrease as the clip plays, use audio key frames.

To add an audio key frame, go to the timeline and move the playhead to the location where you want the change in volume to start.

Double click the audio clip to open the Audio control panel and click the key frame button.

audio  editing  Filmora

Next, move the playhead to where you want the volume adjustment to end and click the Keyframe button again. Now you’ll be able to rag the volume envelope (the line between your two keyframe dots) to adjust the volume of that section of your audio clip.

audio  editing  Filmora

11. Fade Audio In or Out

After adding your audio to the timeline, double click on it to open the Audio adjustment panel.

audio fade in and fade out  Filmora

Set fade in and fade out effects by dragging the sliders or by entering how many seconds a fade effect should last.

You can also use the fade icons at the left and right edges of the audio waveform areas to quick fade in and out.

At the beginning of the audio clip, drag the fade in maker to the right to apply a fade in effect.

To apply a fade out effect, go to the end of the audio clip and drag the fade out maker to the left.

The further you drag, the longer the fade effect will last.

12. Adjust Audio Speed

Adjusting the speed of your audio works the same as adjusting video speed:

Right click on the audio file and select Speed and Duration.

You could also select the audio clip in the timeline and click the Speed icon in the toolbar.

13. Audio De-noise

To remove unwanted background noise from your recorded audio, follow the steps below:

Double click on an audio clip in the timeline panel to open the Audio adjustment window.

Check the box next to Remove background noise.

Drag the slider to the level (Weak, Mid, or Strong) of noise reduction that you need.

audio denoise  Filmora

To remove background noise from a video clip, double click on the video clip in the timeline to open the video adjustment panel. Go to the Audio tab and then follow the above steps.

audio denoise  Filmora

Note: The types of noise you can remove using the denoise tool include wind noise, computer hums, and other consistent sounds.

14. How to Use the Audio Equalizer (EQ)

The Audio Equalizer (EQ) enables you to raise and lower the loudness of an audio frequency (i.e. bass or treble). Here’s how it works:

Double click the video or audio file in the timeline and then go to the Audio tab.

You can select presets in the Equalizer dropdown list, including Default, Classic, Low Bass, Sparkle, Pop, Rock' n' Roll, Soft, Techno, Hard Rock, Ska, Country, Acoustic, Folk, Blues, and Custom. Or, you can click the Customize button and access the Custom Equalizer window to adjust the gain by dragging the sliders up or down.

audio-equalizer

Click OK button to save your adjustments.

15. How to Use the Audio Mixer

You can use the Audio Mixer to fine-tune the audio of your projects. To use the Audio Mixer, please follow these instructions:

Select the audio mixer icon  audio-mixer in the toolbar to open the Audio Mixer panel.

You can switch the sound between left and right by dragging the knob in the Pan/Balance control. You can see your changes clearly in the channel control panel to the right.

There are two modes: Stereo and Surround. In Surround mode, you can pan from left to right as well as front to back, which gives you full control of the audio position in Surround sound mode.

 surround audio Filmora

While in Stereo mode, you can only pan left or right.

 Stereo audio Filmora

You can also go to the master section and drag the Master volume slider upward or downward to adjust the master volume higher or lower. After you’ve made adjustments, click the Play button to hear the results.

Select OK to save the settings.