05 — Audio Editing

The Audio Mixer

HF AI Video Studio supports a multi-track audio layer that runs alongside your video segments. You can layer multiple audio clips — voiceovers, background music, sound effects — and control each independently.

All audio clips appear on the audio track in the timeline, displayed with color coding for quick visual identification.

Importing Audio Files

In the left panel, expand Audio Clips.
Click Add Audio and choose a file from your computer.
Supported formats: MP3, WAV, M4A, OGG, AAC.
The clip appears on the audio track at the current playhead position.

Recording Audio

You can record directly from your microphone without leaving the app.

In the Audio Clips panel, click Record.
Allow microphone access if prompted.
Click Start Recording. The recording captures as long as you hold the session.
Click Stop. The recording is automatically saved and added to the audio track.

Per-Clip Controls

Select any audio clip in the panel or on the timeline to reveal its controls:

Control	Description
Volume	0–100%. Controls the playback level for this clip only
Trim Start	Move the clip’s start point forward (skips the beginning of the file)
Trim End	Move the clip’s end point earlier (cuts the tail of the file)
Position on Timeline	Drag the clip left or right on the timeline to change when it plays relative to the video
Playback button	Preview the clip in isolation

Splitting Audio Clips

Move the playhead to the point where you want to split.
Select the audio clip you want to split on the timeline.
Click Split at Playhead.
The clip becomes two independent clips. Each can be trimmed, repositioned, or deleted separately.

Removing Audio Clips

Click the trash icon on a clip in the Audio Clips panel or the timeline to remove it from the project.