DualVox User Guide

For version 1.0.17 and later in this series
Last updated: September 6, 2026

DualVox is a mobile recording tool for talk-through creators. Show the scene. Speak. Done. You appear on camera, the scene fills the frame, and speaking over a real place, a photo, or a clip produces a vertical video. Two entries at the bottom: Scenes · Discover (record from a recipe or import media) and Dual-cam talk-through (rear camera on the scene + front camera on you). Videos and photos save to the system library.

1. What DualVox does

Capability	Notes
Scenes · Discover	Record from a recipe or import media: street, store visit, check-in, photo diary, clip commentary, how-to, Creative DIY, and more.
Dual-cam talk-through	Rear main picture + front overlay (or split top/bottom) in one video; looks, effects, teleprompter, and more.
Presenter	You on camera, or cartoon / character / animal avatars. Cartoons can blink, sway slightly, and lip-sync to microphone energy.
Picture	Rear / front looks and effects (vignette, sharpen, grain, and similar), which can stack. Availability depends on mode and OS.
Info watermark	Translucent date, time, and place cards you can drag. A close control appears at the top-right when you touch a card. Place comes from location and cannot be edited.
Smart stabilization	Available on the left in dual-cam / single-cam scenes. Off by default, not remembered, turned off when you change scenes. A banner says “Smart stabilization on”.
Teleprompter	On-device script that scrolls while you record. Can follow your speaking pace. The prompt is not burned into the video.
Composition grid	Preview-only. Turns off after recording. Not in the video.

2. Before you start

2.1 Permissions

Grant what the system asks on first use, or check Settings → Permissions & system:

Camera: dual / single camera, overlay while recording other apps, still photos
Microphone: talk-through audio, cartoon lip-sync, teleprompter pace-follow
Photos / storage: save videos and photos, import scene media
Location: place on the info watermark; the place cannot be edited. Without permission, the watermark has no place
Draw over other apps (Android): front-camera / cartoon overlay while recording another app
Notifications (some systems): recording status
Screen recording (iOS): pick the DualVox extension in the system Broadcast sheet

2.2 Device differences

Both cameras at once: only some devices can run front and rear cameras together. You can still open dual-cam; it may fall back to rear-only and explain why. A live front-camera composite may be unavailable.
iOS screen recording: the system picture-in-picture overlay is usually square and cannot be made round. Resolution is set by the system.
Android screen recording: needs overlay permission. Quality can be 720p / 1080p in Settings.

Record a quiet 10–20 second test first so you can check audio, overlay position, and the finished file before a real take.

3. Two entries

Opening the App lands on the capture screen. Switch at the bottom:

Scenes · Discover: start from a recipe card. Instant scenes record immediately. Media scenes pick library video/photos first. Creative DIY can stitch clips or record the screen first.
Dual-cam talk-through: rear camera on the object or space, front camera on you — unboxings, store visits, street interviews.

Settings → Default capture mode sets which entry opens next time.

4. Scenes · Discover

Tap Scenes · Discover and browse recipe cards. The subtitle is “Show the scene. Speak. Done.”
Open a card, read How to shoot, then follow that flow.
Instant scenes (street, store visit, travel check-in): go straight to capture. On the left you can turn on fill light, torch, stabilization, info watermark, and the grid.
Media scenes (photo diary, life cover, clip commentary, how-to, split compare): add the required videos or photos from the library, then edit and talk.
Creative DIY: add several clips or images, or record the screen first, then reorder and talk over them. Settings can keep or drop system / source audio.

Scene	How it starts
Street clip	Single-cam vertical, talk while you walk.
Travel check-in	Single-cam instant record with date/place watermark on; place comes from location.
Store visit	Rear on the store, front on you; falls back to full-frame single-cam if dual-cam is unsupported.
Photo diary	Add several photos, swipe while you talk.
Life cover	Add one photo as the main picture, then appear on camera.
Clip commentary	Add one video; default is split top/bottom while you talk over it.
How-to	Add one how-to clip or screen recording, then talk in a small presenter window.
Split compare	Add one video or photo and talk about the difference in a split layout.
Creative DIY	Freeform clips, or screen-record first then talk.

iOS screen recording: when you record this App’s own camera preview, the preview may appear as a black rectangle. Use screen recording to talk over other apps or imported media. For rear scene + you in the same frame, use Dual-cam talk-through or an instant scene.

5. Dual-cam talk-through

Choose Dual-cam talk-through and allow camera and microphone.
Before recording you can set layout (overlay / split), presenter position and size, window shape, looks and effects, and the teleprompter script.
Optionally turn on the grid, info watermark, smart stabilization, or fill light / torch.
Set countdown (off / 3s / 5s) then tap the shutter. Tap again during countdown to cancel.
While recording you can drag the overlay and open presenter settings. Tap the shutter again to stop.
When processing finishes, the file is saved to Photos. A thumbnail appears on the capture-screen library button.

On devices that cannot run both cameras: you can still open the screen and see a notice; you may only get the rear camera. Follow the on-screen explanation.

6. Picture, presenter, and layout

6.1 Picture panel (looks / effects)

Looks: several filter styles. Rear looks apply to Dual-cam talk-through / single-cam scenes. The system screen-recording picture cannot take a look.
Effects: vignette, sharpen, grain, and similar, which can stack with looks; intensity is adjustable.
When both cameras are available, you can set them separately.

6.2 Presenter

Avatar: you on camera, or cartoons 1–4, women 1–4, men 1–4, and animals such as cat, dog, rabbit, bear, panda, fox, pig, penguin. Free: you on camera + cartoons 1–4. The rest are membership.
Lip-sync (cartoon / animal): mouth opens with microphone level. Toggle in presenter settings or Settings.
Window shape (overlay layout): circle, rounded, and square are free; cloud, heart, drop, and more are membership. iOS system screen-recording overlay shape is an exception.
Layout:
- Overlay: full-screen main picture + a small window you can drag, reshape, and resize.
- Split: top and bottom halves; flip swaps the two.
Include presenter (device-dependent): whether the front camera is composited. On unsupported devices the switch is disabled and explained.

6.3 Suggested uses

Lessons / app demos: Creative DIY screen recording or How-to + a small live window.
Unboxing / store visit: Dual-cam or Store visit — rear on the product, front on your face.
Travel check-in: single-cam instant record + date/place watermark.
Prefer not to show your face: cartoon or animal + lip-sync.

7. Watermark, stabilization, and light

7.1 Info watermark

The left watermark icon toggles date / time / place cards.
Drag a card anywhere. When you touch it, a small close control in the top-right becomes clearer; tap it to hide the card.
Place is filled by system location and cannot be edited. Without location permission there is no place; other recording still works.
Travel check-in turns the watermark on automatically. Leaving that scene does not change your saved defaults.

7.2 Smart stabilization

Available on the left in dual-cam and single-cam. Off by default, not remembered, and turned off when you change scenes or leave.
A banner says “Smart stabilization on”. Preview may lag slightly on some devices because of the capture buffer. Turn it off anytime.

7.3 Fill light and torch

On the left in single-cam / dual-cam you can turn on screen fill light or the rear torch for dim shops or night.

8. Teleprompter

The teleprompter is for Dual-cam talk-through and matching capture screens. Scripts stay on the device. The scrolling layer is only for you and is not burned into the video.

8.1 Edit the script

In Dual-cam talk-through, before recording, tap the teleprompter icon.
Type or paste the script. Set size, scroll speed, and background opacity.
Turn on pace-follow (on by default): scroll speeds up or down with microphone level; it slows clearly when you are silent. Off = a fixed speed.
Save and close. Settings → Teleprompter shows whether a script exists and lets you clear it.

8.2 While recording

After you start, tap the teleprompter icon to show the layer and start scrolling (there may be a short hold at the start).
Tap the prompt to pause / resume; swipe up or down to scrub.
Tap the icon again to hide the layer (progress is kept so you can continue from there).

9. While recording

Control	Notes
Shutter	Start / stop. Tap again during countdown to cancel. You can also take a still on the capture screen.
Countdown	The bottom timer capsule switches off / 3s / 5s; Settings can change the default.
Drag overlay	In overlay layout, drag in preview and while recording.
Presenter / picture	You can still open panels while recording (some options depend on mode).
Watermark / stabilization / light	See the previous section. Stabilization turns off when you change scenes.
Teleprompter	See the previous section; mainly Dual-cam talk-through.
End screen recording	Use the system overlay or Broadcast controls on Android / iOS, then return to DualVox to review the file.

10. Videos, photos, and the library

Videos and photos save to the system library and appear in the in-app library (video and stills).
The capture-screen library button opens recent items; a thumbnail confirms a successful save.
Brand wordmark: non-member videos may show the text “DualVox” at the bottom-right (no logo). If the overlay is at the bottom-right, the wordmark moves to the bottom-left so it is less likely to cover your face. Membership watermark removal follows the membership screen.
The info watermark (date/place cards) is separate from the brand wordmark: you turn the former on on the capture screen, and it is in the video.
After export you can share from the system library / share sheet to short-video apps or elsewhere.

11. Settings

Open Settings from the capture screen. Main groups:

11.1 Account and membership

Sign in / sign up (mobile number and SMS code, or Sign in with Apple on iOS)
Membership and the membership agreement
Sign out, delete account

11.2 Recording defaults (synced with the capture screen)

Default capture mode, presenter, lip-sync
Default overlay shape (overlay layout only), default layout
Rear / front looks and effects (some are membership)
Countdown, quality (720p / 1080p for everyone. Dual-cam and Android screen recording; iOS screen recording is set by the system)
Whether Creative DIY keeps system audio
Composition grid, smart stabilization (not remembered, off by default), teleprompter script, pace-follow

11.3 Permissions and system

Opens system settings for camera, microphone, photos, location, overlay, notifications, and similar.

11.4 Legal and about

User guide, user agreement, privacy policy, personal information and third-party lists
Feedback, clear cache, check for updates, rate, About

Clear cache removes temporary files but keeps sign-in, recording preferences, and the teleprompter script.

12. Account and membership

Sign in with a mobile number. During beta, if SMS fails, use the code shown in the product (follow official notes).
Free: Scenes · Discover / Dual-cam talk-through, 720p / 1080p, 6 basic looks, 3 effects, circle and similar windows, cartoons 1–4. Videos may include the DualVox wordmark.
Membership: remove the wordmark, all looks and effects, all window shapes, all cartoon / character / animal avatars, and more. Follow the in-app membership screen and gates.
Payment depends on the live channel. If the page says payment is not available yet, you can only browse the plans.
See the Membership Agreement for more terms.

13. FAQ

The preview is black while I screen-record this App?

Usually an iOS limit: the camera preview layer cannot be captured. Use Creative DIY screen recording to talk over other apps. For selfie + surroundings, use Dual-cam talk-through or an instant scene.

No live overlay / dual-cam is greyed out?

When the device cannot run both cameras, we notify you and may hide or disable the live composite. Try a cartoon avatar, or a single-cam / media scene in Scenes · Discover.

Stabilization makes the picture lag?

Smart stabilization needs a capture buffer, so preview can be a bit slow. It is off by default and not remembered. Turn it off when you do not need walking stability.

Why can’t I type the watermark place?

Place comes from system location so it reflects where you actually shot. Turn off place or the whole info watermark; you can also tap the small close control on the card.

The teleprompter is not in the video?

That is by design: it is only for you to read while shooting.

Pace-follow is not tracking my reading?

Pace-follow uses microphone level, not speech-to-text alignment. Check microphone permission, keep background noise down, and confirm pace-follow is on in the teleprompter panel. Scroll slows when you are quiet or speak softly.

The video says DualVox?

Non-member videos may include a text watermark. Membership can remove it according to the membership screen.

No presenter on Android screen recording?

Turn on overlay permission and allow related background prompts. Some systems need DualVox excluded from battery optimization.

Audio is quiet or there is no lip-sync?

Check microphone permission and system mute. Cartoon lip-sync needs Lip-sync on, and your voice needs to be above the noise floor.

14. Feedback and legal

This guide describes DualVox as it ships today. Copy and benefits may change with versions. If this page and the App disagree, the App wins.