VideoAudioFX Support

How it works

One effect chain, applied live, exported clean.

VideoAudioFX runs your video's audio through EQ, reverb, compression, limiting, and fades — and passes the video itself through untouched.

A full effect chain, not a single filter

A 5-band graphic EQ with a live frequency-response graph, an algorithmic hall reverb, compression and limiting with real-time gain-reduction metering, and adjustable fades — applied in that fixed order, every time.

Hear it before you commit to it

Every change previews instantly against your actual video, synced to a high-resolution waveform you can scrub to any moment. Nothing is written to your file until you export.

Save a sound, reuse it next time

Name and save your effect settings as a preset, reload it on your next video, or update it in place once you've dialed it in further — like "Home piano with DPA mics."

Compression, limiting, and master meters

Video in, video out — unchanged

Export re-encodes only the audio track. The video is passed through bit-for-bit, so there's no re-compression, no quality loss, and no waiting on video processing you didn't ask for.

FAQ

Frequently asked questions

Import & Photos access

Why does VideoAudioFX ask for full access to my Photo Library?: Full access lets the app pull your video's original file directly, which is significantly faster than the standard picker — especially for long or HDR videos, which the limited path has to re-export first. If you choose Limited Access or decline, importing still works; it just goes through that slower path.
My import is stuck on "Preparing video…" — is something wrong?: Not necessarily. The first stretch of an import can sit at a small percentage while Photos prepares the file behind the scenes — normal for cropped or edited videos, which have to be re-rendered before being handed over. You can cancel at any time with Cancel Import.
I got a "not enough storage" message.: VideoAudioFX checks available disk space before importing or exporting, since processing needs room to work alongside your original file. Free up some space on your device and try again.

Effects & live preview

Does adjusting effects change my original video file?: No — nothing is written until you tap Export. Every effect previews live against your video without touching the source file.
Why does the waveform take a moment to fully appear on long videos?: The waveform is generated progressively as your video's audio is decoded, so it fills in live rather than all at once — on a longer video, that fill-in is simply more visible.

Export & purchase

What does the one-time purchase unlock?: Every effect is free to use and preview. The one-time purchase unlocks exporting — as many videos as you like, forever, with no subscription.
I reinstalled the app or got a new device — do I have to pay again?: No. Open the export screen and tap Restore Purchases — your unlock is tied to your Apple ID, not the device.

Troubleshooting

Audio doesn't play after I plug in or remove headphones.: This should recover automatically — VideoAudioFX listens for audio route changes and restarts the audio engine on its own. If you ever do hit a case where sound doesn't return, closing and reopening the video resets it.
I got a "Couldn't load video" error.: This usually means the file's audio track couldn't be read. Try re-exporting the source video from wherever it came from, or import it again with Choose File instead of Photos.

Help with VideoAudioFX