wavevid 0.1.1

Audio to waveform video generator with subtitles

wavevid

Turn your podcast or audio into stunning waveform videos with avatar, subtitles, and intro/outro — ready for social media.

Features

• 5 visualization styles — waveform, radial, bars, spectrum, particles
• Auto-generated subtitles — via Soniox speech-to-text
• Intro/outro — with title overlay, custom sounds, and fade transitions
• Background music — loops throughout with adjustable volume
• Smart color detection — auto-picks wave/subtitle colors from background
• Social media presets — 16:9, 9:16, 1:1, 4:5 aspect ratios
• End screen — auto-generated with avatar and title

Install

pip install wavevid

Or install from source:

git clone https://github.com/tf-vip/wavevid.git
cd wavevid
pip install -e .

Requires: FFmpeg (brew install ffmpeg on macOS, apt install ffmpeg on Ubuntu)

Quick Start

# Basic waveform video
wavevid audio.m4a -o video.mp4

# Square video with avatar for social media
wavevid audio.m4a -o video.mp4 --aspect 1:1 --avatar photo.jpg

# Full-featured podcast video
wavevid podcast.m4a -o podcast.mp4 \
  --style radial \
  --bg random \
  --avatar host.jpg \
  --subtitle \
  --intro intro.wav \
  --intro-title "My Podcast" \
  --bg-music jazz.mp3

Options

Video

Option	Default	Description
-o, --output	output.mp4	Output file
--aspect	-	Preset: 16:9, 9:16, 1:1, 4:5
--width	1920	Video width (if no aspect)
--height	1080	Video height (if no aspect)
--fps	30	Frames per second
--preset	ultrafast	Encoding: ultrafast to veryslow
--thumbnail	-	Save thumbnail image

Visualization

Option	Default	Description
--style	waveform	waveform, radial, bars, spectrum, particles
--bg	color	color, gradient, image, random
--bg-value	#1a1a2e	Hex, "color1,color2", or image path
--wave-color	#00ff88	Hex or auto (detect from background)
--wave-sync	0	Sync offset in seconds

Avatar & Subtitles

Option	Default	Description
--avatar	-	Avatar image (centered, circular)
--avatar-size	auto	Size in pixels
--subtitle	off	Enable transcription
--subtitle-color	auto	Hex or auto
--subtitle-font-size	auto	Font size in pixels
--replace	-	Text replacement: old=new
--replace-file	-	File with replacements

Audio

Option	Default	Description
--volume	100	Main audio volume %
--intro	-	Intro sound file
--intro-duration	3	Intro solo duration (seconds)
--outro	-	Outro sound file
--bg-music	-	Background music (loops)
--bg-music-volume	15	Background music volume %
--audio-only	-	Output audio mix only

Intro Clip

Option	Default	Description
--intro-title	-	Title text overlay
--intro-subtitle	-	Subtitle below title
--intro-bg	-	Intro background (image or video)
--intro-clip-duration	3	Intro clip length (seconds)
--intro-static	animated	Static intro (better thumbnails)
--intro-title-color	auto	Hex or auto

End Screen

Option	Default	Description
--end-screen	auto	Enable end screen
--end-screen-duration	5	Duration in seconds

Examples

Podcast with everything

wavevid episode.m4a -o episode.mp4 \
  --style radial \
  --aspect 1:1 \
  --bg random \
  --wave-color auto \
  --avatar host.jpg \
  --subtitle \
  --subtitle-color auto \
  --intro intro.wav \
  --intro-title "Episode 42" \
  --intro-subtitle "The Answer to Everything" \
  --outro outro.wav \
  --bg-music lofi.mp3 \
  --bg-music-volume 10

Instagram Reels (9:16)

wavevid clip.m4a -o reel.mp4 \
  --style bars \
  --aspect 9:16 \
  --bg gradient \
  --bg-value "#667eea,#764ba2" \
  --avatar photo.jpg

Audio mix only (no video)

wavevid podcast.m4a -o mixed.m4a \
  --audio-only \
  --intro intro.wav \
  --outro outro.wav \
  --bg-music jazz.mp3

High quality export

wavevid audio.m4a -o video.mp4 \
  --preset slow \
  --fps 60

Subtitles

Subtitles use Soniox API for transcription.

1. Get API key from https://console.soniox.com
2. Create .env file:

   SONIOX_API_KEY=your_key_here
   

3. Run with --subtitle

Transcripts are cached in .transcribe_cache/ to avoid repeated API calls.

Text Replacements

Fix transcription errors with --replace or --replace-file:

# Single replacement
wavevid audio.m4a -o video.mp4 --subtitle --replace "AI=A.I."

# Multiple from file
wavevid audio.m4a -o video.mp4 --subtitle --replace-file fixes.txt

fixes.txt:

AI=A.I.
gonna=going to
# comments are ignored

Social Media Specs

Platform	Ratio	Resolution	Aspect Flag
YouTube	16:9	1920×1080	--aspect 16:9
Instagram Feed	1:1	1080×1080	--aspect 1:1
Instagram/TikTok	9:16	1080×1920	--aspect 9:16
Facebook Feed	4:5	1080×1350	--aspect 4:5

Custom Backgrounds

Add images to src/wavevid/backgrounds/ for --bg random, or use --bg image --bg-value path/to/image.jpg.

License

MIT