MP4 TO TEXT

Turn MP4 speech into text and subtitle-ready output.

Sonorix accepts MP4 files with audio, creates a durable transcription job, then gives you editable text, searchable intelligence and caption exports.

Transcribe free See how Sonorix works →

✓ Completely free now✓ No card or credits✓ Source media auto-deletes

Sonorixworking demo

♪

recording.m4a18:42 · language auto

Ready

Speaker 1

“We can deliver the first version by Friday. I’ll send the revised brief today.”

DECISIONFirst version due Friday↳ evidence 07:42

ACTIONSend revised brief↳ evidence 08:16

ASK SONORIXWhen is delivery?Friday · ↳ 07:42

TRY THE REAL PRODUCT

Upload a recording. Get the result before deciding whether to sign up.

Supported inputs include MP3, M4A, WAV, AAC, FLAC, MP4, MOV and WEBM. The file is streamed into private storage, validated, queued durably and removed after successful transcription.

Editable transcript
Summary, decisions and action items
Transcript-grounded Q&A
TXT · DOCX · PDF · SRT · VTT · JSON exports

MP4 TO TEXT

Start free

Ready

Private by defaultSource deletion after successGuest start available

WHY SONORIX

Transcription is the start of the workflow, not the end.

Useful text and captions from MP4 content without switching between a converter, transcription tool and summarizer.

One upload

No separate audio extraction step before transcription.

Caption exports

Generate SRT or VTT for editing and publishing workflows.

Conversation intelligence

Pull out decisions, follow-ups, risks and important moments from spoken content.

HOW IT WORKS

Simple on the surface. Sophisticated underneath.

The user sees one focused flow: upload → transcript → useful output. Behind it, Sonorix uses durable jobs, provider fallback, resource guards, grounded intelligence, privacy cleanup and automatic recovery without exposing that complexity to the user.

1
Upload
Your media is validated and admitted only when capacity is safe.
2
Transcribe
The worker processes resumable sections through the currently available free provider chain.
3
Understand
Sonorix extracts transcript-grounded structure instead of mixing in unsupported source facts.
4
Act
Edit, ask, create tasks, share securely or export the result.

QUESTIONS

About mp4 to text

Does MP4 need an audio track?+

Yes. Sonorix checks the media safely and reports when no usable audio stream is present.

Can I edit the transcript?+

Yes. The transcript workspace is editable and revision-aware.

Is MP4 transcription free?+

Yes, within Sonorix fair-use and service-capacity safeguards.

SONORIX V3

Turn the next recording into work you can use.

No card. No credits. Start with the actual product.

Transcribe free