By Team Hypomnema · Updated October 19, 2026
Turn audio into waveform or spectrum videos with artwork and titles.
Prepare
Add an audio file and select up to 10 minutes.
Adjust and review
Choose waveform or frequency bars, frame shape, colors and title. Add optional artwork.
Save your result
Render a short sample or the full MP4, watch the actual animation and download.
Limits and compatibility
Files are processed on your device and are not uploaded. Use a current browser; memory-constrained devices may need smaller inputs. Cancellation stops processing. Originals remain unchanged. The pinned FFmpeg WebAssembly engine downloads about 31 MB from jsDelivr on first use. Video encoding can take several minutes on mobile. MP4 uses H.264/AAC and strips source metadata. Inputs are capped at 100 MB combined and 10 minutes per media file. DRM media is unsupported. Output is limited to 10 minutes at 24 fps and up to 1080p. Artwork: one JPG, PNG or WebP up to 30 MB, reduced to 4 MP. Waveforms and frequency bars are measured from the selected audio; the static layout preview does not simulate the animation. Artwork and title are rasterized into the exported video.
Try the workflow
Keep your original documents and review the output. You can also browse all guides or contact Team Hypomnema.