P-MIX Studio User Manual

Live-event playback software: scenes, preview/program, transitions, and media. This page is in English; on-screen menus may use English labels as in the app.

1. Introduction

P-MIX Studio switches multiple sources quickly for live events. Content is organized in scenes; you monitor Preview (PRV) and Program (PGM), and use CUT / MIX / FTB for hard cuts, cross-dissolve, and fade-to-black, with optional external display output.

Menus and many controls use English (e.g. File, Edit, Settings, Hotkey Editor), matching the application.

2. Startup and projects

2.1 New and open

New project: Cmd+N (macOS) or File → New.
Open: Cmd+O or File → Open, choose a .pmix file.
Quit: Cmd+Q.

2.2 Suggested workflow

Plan scene order and layers, import media, check in Preview, then rehearse Program and transitions before going live.

3. User interface overview

Left: Media Browser — add video, stills, audio, and PDF to the current scene.
Center-left: Scene list with scene cards; the selected scene is sent to Preview; double-click or shortcuts send to Program.
Center: Preview and Program monitors; CUT / MIX / FTB and transport below.
Right: Layer panel (order, visibility, loop, etc.), Mixer, and more. CUT / MIX / FTB sit in the middle/bottom of the main window. Scene card width (W) and height (H) are adjusted at the bottom of the window.
Menu bar: File, Edit (Hotkey Editor), View (e.g. Mixer), Settings, Help.

Scene card size: W roughly 120–360, H roughly 50–280 via sliders.

4. Supported media

Type	Formats	Notes
Video	MP4, MOV, M4V, MKV	—
Image	PNG, JPG, JPEG, WEBP, BMP	~10MB per file recommended; large files may be scaled to cache
Audio	MP3, WAV, AAC, FLAC, M4A	—
Document	PDF	Treated like a slide layer with page turns; one PDF per scene

PPT/PPTX are not opened directly as project media; convert to PDF or follow your venue workflow.

5. Scene management

5.1 Add and remove

Add: 「+」/ Add Scene in the scene list; default names like “Scene N”.
Remove: 「−」/ Remove Scene or right-click → Remove Scene.

5.2 Rename

Click the scene name on the card, or right-click → Rename Scene.

5.3 Reorder

Use Reorder Scenes to assign unique numbers 1…N, then confirm. Left/Right arrow keys change the selected scene (Preview-linked; see Shortcuts).

6. Layers and stacking

Each scene can have multiple layers. List order is draw order: top of the list is the topmost layer; bottom is the back.

In the Layer panel, drag or use Move Up / Move Down. Put main video lower and titles/PDF above.

7. Preview, Program, and output

Preview (PRV): Pre-check the selected scene before air (preview behavior).
Program (PGM): The live program output.
External output: F12 toggles external screen output (depends on environment).

8. Playback and transitions

8.1 Transport

Play / Pause: Space
Stop: S

Program video/audio follow transport; for Preview, select the scene first, then use Space.

8.2 CUT, MIX, FTB

CUT: Instant switch, no transition. Select scene, then Enter or C; or 1–9 to cut that scene to Program.
MIX (AUTO): Cross-dissolve. Choose MIX or press A/M, then Enter or C. The current build uses a fixed ~1 second transition (~0.5s fade of the current Program view, switch at the midpoint to Preview, ~0.5s fade-in), matching the “1s cross-dissolve” tooltip. You cannot change the duration in milliseconds in the main UI (it is fixed in code).
FTB (Fade to Black): B or F toggles on/off.

9. Fade-out and auto playback

9.1 Video / audio end fade

Global defaults: In Settings → Playback Defaults, enable “All Video Fade Out On” / “All Audio Fade Out On” to fade video to black and duck audio in the last ~1 second of playback.
Per scene: Right-click a scene card and use “Video Fade Out Off” / “Audio Fade Out Off” to override.

9.2 Loop and jumps

Loop: Right-click scene or layer; playback restarts from the beginning.
End jump (Auto To 1, etc.): After playback, jump to a numbered scene. Mutually exclusive with Loop; enabling Loop clears End To.
Auto Next: After playback, go to the next scene; mutually exclusive with Loop and End To.

10. Saving and moving projects

Save with file: Cmd+S or File → “Save with file”. Saves .pmix (JSON) and copies referenced media next to the project under pmix_media, with relative paths (e.g. pmix_media/...).
Save PJ only: File → “Save PJ only” — project data only, no media copy; relative paths inside the project folder are preserved.

When moving to another Mac, use “Save with file” and copy the whole folder including pmix_media. Older projects may still use a _media folder; the app tries to resolve paths. If media is missing, restore paths or relink manually.

11. Shortcuts

Customize in Edit → Hotkey Editor.

Key	Default action
`1`–`9`	Cut scenes 1–9 to Program
`Enter` / `C`	Cut to Program
`A` / `M`	Select AUTO/Mix, then Enter to execute
`B` / `F`	FTB on/off
`Space`	Play / pause
`S`	Stop
`←` / `→`	Previous/next scene (to Preview); with Space held, PDF page turn
`F12`	External output on/off
`Cmd+N` / `O` / `S` / `Q`	New / open / save / quit

On Windows, use Ctrl instead of Cmd where the app supports it.

12. Typical use cases

Live switching: Number keys and CUT/MIX; Program to projector or capture.
Meetings / talks: One scene for PDF, another for stinger or camera; MIX for smooth changes; global fade at end.
Events: Multiple scenes for opens, closes, BGM, overlays; layers for stacking; mixer for levels.
Loop / unattended: Loop, Auto To, or Auto Next for looping or auto-advance.