MP4 Segment Video Creator

1. Audio Input

Select Main WAV Audio File:

2. Visuals (Images or MP4 Segments)

Use Visuals?

Select Visual Files (PNG, JPG, MP4): Visual Previews & MP4 Segment Selection:

No visuals selected or loaded yet.

3. Video Settings

Width (px):

Height (px):

Background Color: Frames Per Second (FPS):

4. Text Overlay (Optional)

Add Text Overlay?

5. Generate & Output

Output Filename (e.g., myVideo.mp4):

Status: Select a WAV file to begin.

SolvProb — Custom Website & App Engineering

Wavtomp4 Adv

Combine a WAV soundtrack with images or MP4 segments, optional text overlays and canvas settings, then record and download MP4 or WebM video.

What this tool does

Wavtomp4 Adv creates a browser-recorded video from a WAV soundtrack and optional image or MP4 visual assets. It draws the visuals on a canvas, can add text, and chooses a supported MP4 or WebM recording format.

Who this is for

Creators making simple music-backed visual videos
Teams turning a WAV voiceover or soundtrack into a shareable draft
Users who need lightweight browser recording without server uploads

How to use this tool

Choose a WAV file and optionally add PNG/JPG images or MP4 visual segments
Set output dimensions, background color, frame rate, optional text, and filename
For MP4 segments, set the visible start and duration controls as needed
Create the video, review the preview, and download the browser-selected MP4 or WebM result

Inputs

Inputs include one WAV soundtrack, optional image or MP4 visuals, segment timing, canvas width and height, background color, FPS, text overlay, text color, font size, position, and output filename.

Outputs

The canvas is recorded with the WAV audio into a downloadable video. The page prefers MP4 when the browser supports a compatible codec and otherwise falls back to WebM; it does not upload or store source files on a server.

Example use cases

Create a photo montage synced to a short soundtrack
Turn a voice recording into a captioned visual draft
Combine image slides with selected MP4 segments for a simple presentation

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Frequently asked questions

Will the output always be MP4?

No. The tool checks browser-supported MediaRecorder formats and may download WebM when a compatible MP4 codec is unavailable.

What visual files and segment controls are supported?

You can add PNG or JPG images and MP4 segments. MP4 visuals expose start and duration controls; images are arranged across the soundtrack timeline.

How is audio duration mapped to images?

The WAV duration determines the recording length, and image visuals are distributed across that timeline. Segment timing and browser media readiness can affect synchronization.

Why is recording slow or failing?

The browser must support Web Audio, canvas capture, and MediaRecorder. Long, high-resolution recordings use substantial memory, and codec or MP4 seeking support varies by browser.

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