Extract Audio from Video Online Free — MP4, MKV, WEBM and More

With VoxScriber: 1) Upload the MP4 file (up to 5 GB). 2) Select the desired output format (MP3, WAV, or M4A). 3) The system extracts the audio track automatically. 4) Download the audio file. The process takes under 2 minutes for files up to 1 hour. No need to install FFmpeg, VLC, Handbrake, or any desktop software.

In practice, they are the same process: extracting the audio channel from the video container and saving it as a separate audio file. "Extract audio from video" is the generic term (works for any video → any audio format). "Convert MP4 to MP3" is a specific case. The end result is identical: you get the audio without the video.

Full workflow: 1) Record the meeting in Zoom (requires Pro account or host permission). 2) After ending, Zoom automatically converts to MP4 in Documents/Zoom/[meeting name]. 3) Upload the MP4 to VoxScriber. 4) Extract as MP3 or WAV. 5) Optional: transcribe the audio directly to get the full meeting notes. For Google Meet meetings: recordings are automatically saved to Google Drive — download the MP4 and follow the same process.

Yes. VoxScriber accepts all common video formats: MP4, MKV, WEBM, AVI, MOV, FLV, M4V, 3GP, TS. MKV is common for films and series (often contains multiple audio tracks — the main track is extracted by default). WEBM is the default format for Google Drive videos and some web platforms. AVI is legacy but still widely used in old camera recordings.

Google Drive videos (including Google Meet recordings) can be downloaded as MP4. Steps: 1) In Google Drive, right-click the video. 2) Select "Download". 3) The file downloads as MP4. 4) Upload the MP4 to VoxScriber. 5) Extract audio as MP3 or WAV. Note: "view only" shared videos may not allow download — ask the owner to grant download permission.

Yes. The process extracts the audio track from the video container without reprocessing — it's like opening a box and removing the object inside, without altering the object. If the original MP4 has AAC 192kbps audio, the extracted file has AAC 192kbps. When saving as MP3, the audio is converted from AAC to MP3 at a configurable bitrate (128-320kbps). To preserve 100% original quality, export as WAV (uncompressed).

Yes — in fact, VoxScriber does this automatically. When you upload an MP4 file (or any video) directly to the transcription button, the system extracts audio internally and transcribes it. You don't need to manually extract audio before transcribing. Manual extraction is useful when you want the audio file for other purposes (podcast, editing, WhatsApp) in addition to transcription.