Convert MP4 to WAV via API

Extract lossless WAV audio from video files for professional editing, transcription, or further processing. WAV preserves full audio fidelity without compression artifacts.

Try it in your browser

Loading FFmpeg engine... (~31 MB)

Use the API

curl -X POST https://renderio.dev/v1/commands \
  -H "X-API-KEY: ffsk_your_api_key" \
  -H "Content-Type: application/json" \
  -d '{
  "ffmpeg_command": "-i {in_video} -vn -c:a pcm_s16le -ar 44100 {out_audio}",
  "input_files": {
    "in_video": "https://example.com/input.mp4"
  },
  "output_files": {
    "out_audio": "output.wav"
  }
}'

Need an API key? Get your free API key to start processing files programmatically.

Common Variations

24-bit for professional audio

-i input.mp4 -vn -c:a pcm_s24le -ar 48000 output.wav

Mono at 16kHz for speech recognition

-i input.mp4 -vn -ac 1 -ar 16000 -c:a pcm_s16le output.wav

48kHz sample rate

-i input.mp4 -vn -c:a pcm_s16le -ar 48000 output.wav

Related Operations

Convert Video to WAV via API | RenderIO Convert MP4 to MP3 via API | RenderIO Convert WAV to MP3 via API | RenderIO Extract Audio from Video via API | RenderIO

Need to process at scale?

Automate this with the RenderIO FFmpeg API. Process thousands of files programmatically or through no-code video automation.

Get your API key