Fine-tune the audio in your video.
Set loudness, draw a volume curve, mute a clip, or lower a video’s sound under overlapping music or voiceover. This is the manual mixer — not the noise-reduction pass.
Background hiss and room noise are Clean Audio. Empty gaps are Remove Silences.
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- Voice100%
Normal — the layer you mix toward.
- Music40%
Lowered under overlapping speech.
- Clip audio70%
Pulled back so it does not fight the VO.
What is video audio editing?
Video audio editing is adjusting how loud each layer is, and when that loudness changes: clip volume, fades, and making room for overlapping tracks. In Cubix, Audio Controls maps to Audio → Volume: loudness, mute, a volume curve, and a one-shot “lower under overlapping audio.” It does not include EQ, panning, normalization, or noise reduction.
Make every layer sit where it should.
A voice that spikes, music that talks over the line, and a clip that needs to fade out are mixing problems. They are not the same as a noisy room. Mix here. Clean the hiss elsewhere.
Voice
100%
Normal — the layer you mix toward.
Music
40%
Lowered under overlapping speech.
Clip audio
70%
Pulled back so it does not fight the VO.
Volume curve: fade in, hold, dip under overlap.
What Audio Controls can actually do
- 01
Loudness
A 0–200% slider with Mute / Unmute. Presets: Mute, Quiet (40%), Normal (100%), Boost (140%).
0–200% + mute
- 02
Volume curve
Keyframe volume over time. Drag points, or type starts-at, ends-at, and set-to percent. This is how you fade in, fade out, or dip a section.
Fade by keyframes
- 03
Lower under overlapping audio
On a video clip, drop its sound to 40% under overlapping music or voiceover, with short fades. It is a one-shot duck, not a speech-following compressor.
40% under overlap
- 04
Extract audio from video
Download the clip’s soundtrack when you want that sound on another layer.
Detach soundtrack
How to adjust audio in a Cubix video
- 1
Select the clip or audio item
Volume belongs to the selected layer. Voice, music, and the video’s own sound are mixed separately.
- 2
Set loudness or mute
Use Quiet, Normal, or Boost as a starting point, then nudge the slider. Mute when the picture should stay and the sound should not.
- 3
Edit the volume curve for timing
Open Custom volume curve to fade in, fade out, or lower a stretch. Fades are points on this graph — there is no separate fade knob.
- 4
Lower video under overlapping tracks
If music or VO sits on top of a talking-head clip, use Lower under overlapping audio, then fine-tune the curve if 40% is not the right dip.
Mixer controls that exist
If a control is not in this list — EQ, pan, loudness normalization, de-ess — it is not in Audio → Volume. Do not look for it here.
Loudness
Clip level, 0–200%.
Curve
Level over time.
Overlap
Video under other audio.
In Audio → Volume
- 0–200% loudness
- Mute / Unmute
- Volume curve
- Lower under overlap
- Download audio from video
Audio Controls vs Clean Audio
Clean Audio
“Make the voice easier to hear.”
- Reduces hiss, hum, and leftover room noise
- Does not change edit length
- Does not mix layers against each other
Audio Controls
“Make every layer sit where it should.”
- Loudness, mute, and boost
- Volume curves for fades and dips
- Lower video audio under overlapping tracks
- Extract the soundtrack from a clip
Mix problems this panel is for
Podcasts
Two voices and a bed of music. Set Normal on speech, then lower the bed so it does not sit on the words.
YouTube videos
A-roll too hot, music too present in the intro, a fade out on the end card — all volume-curve jobs.
Tutorials
Screen recordings often arrive with clip audio fighting the voiceover. Mute or lower the clip, keep the VO.
You mix. Cubix does not invent a mastering chain.
No EQ, no pan, no loudness-standard normalize, no de-ess in this panel. Those absences are intentional product scope, not missing copy.
Cubix provides
- Loudness 0–200% with Mute, Quiet, Normal, Boost
- A volume curve with editable points
- One-shot lower-under-overlap on video clips
- Download audio from video
You decide
- Which layer is too loud
- Where a fade or dip should land
- Whether overlapping music should drop
- When the problem is noise instead of level — then Clean Audio
Audio controls FAQs
Select the clip, open Audio → Volume, and set Loudness. Use Quiet, Normal, or Boost, or drag 0–200%. Mute if the picture should stay without the sound.
Clean Audio reduces background noise on spoken audio. Audio Controls sets levels, mute, volume curves, and a one-shot duck under overlapping tracks. Noise vs mix.
Yes, by editing the volume curve. There is no separate fade-in/fade-out knob. Add points and set the start or end to the percent you want.
There is a one-shot “Lower under overlapping audio” on video clips: it drops that clip’s sound to 40% under overlapping music or VO with short fades. It is not continuous auto-duck that follows every word.
Not in Audio → Volume. Do not expect an equalizer, stereo pan, or loudness-standard normalize on this page.
Yes, up to 200%, including a Boost preset at 140%. If the voice is quiet because of noise, clean it first so you are not boosting the room with it.
Yes. Download audio from video when you want that soundtrack as its own layer.
No. Timing gaps are Remove Silences. Audio Controls changes level, not edit length.
You can set loudness per clip. There is no dedicated multi-mic matching or channel router.
Either can work. Many people clean the voice so they can hear it, then set levels against music. You can still move volume after either pass.
Is the problem hiss and room noise rather than mix? Open Clean Audio
The picture is done.Put the soundtrack in its place.
Set loudness, draw the curve, lower overlaps, and leave noise reduction to Clean Audio.
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