Pro Multimedia Video Creator

1. Audio Input

Select Main WAV Audio File:

Audio Fades

Fade In (seconds):

Fade Out (seconds):

2. Visuals (Images or MP4 Segments)

Use Visuals?

Select Visual Files (PNG, JPG, MP4) - Drag to Reorder: Visual Previews & MP4 Segment Selection:

No visuals selected or loaded yet.

3. Video Settings

Width (px):

Height (px):

Background Color:

Visual Scaling:

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 Adv2

Create browser-based videos from a WAV soundtrack, images or MP4 clips, optional fades and text overlays, then download the recording.

What this tool does

Wavtomp4 Adv2 combines one WAV soundtrack with image or MP4 visuals in the browser. It renders the sequence to a canvas, applies optional text and fades, and records the result with Web Audio and MediaRecorder.

Who this is for

Creators making simple soundtrack-backed visual videos
Users preparing a local draft without server conversion
Teams testing image, clip, text, and fade combinations

How to use this tool

Choose a WAV file and add PNG/JPG images or MP4 clips
Reorder visuals and set MP4 start and duration values when needed
Set canvas size, background, fit mode, FPS, text overlay, fades, and filename
Create the recording, preview it, and download the browser-selected video file

Inputs

Inputs include a required WAV soundtrack, optional PNG/JPG/MP4 visuals, MP4 timing, fade settings, canvas dimensions, background, contain or cover mode, frame rate, text styling, and output filename.

Outputs

The page records a downloadable video Blob from the canvas and audio streams. It tests browser codecs, so the result may be MP4 or WebM; source files remain local and are not uploaded.

Example use cases

Create a photo montage synced to a WAV soundtrack
Build a captioned visual draft from images and clips
Test fades and framing before using a dedicated editor

Explore more SolvProb tools

Frequently asked questions

What files can I add?

Add one WAV soundtrack plus PNG or JPG images and MP4 visual clips. The WAV is required for recording and all visual assets must load successfully.

Does it convert to MP4 or WebM?

It uses MediaRecorder and selects a browser-supported MIME type. MP4 is possible, but WebM may be downloaded when the browser lacks a compatible MP4 codec.

Are files uploaded?

No. Audio and visual processing is intended to run in the browser. The page has no server conversion or account storage.

Why must I reselect files after loading settings?

Saved settings use localStorage, but browsers do not restore file-input permissions or the original local files. Select the soundtrack and visuals again.

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