M4A to Text
Transcribe M4A audio files and Voice Memos into text, SRT, and VTT. Sign in for direct, privacy-first local audio transcription.
Video & Audio Speech Transcriber
Sign in to transcribe · Export TXT / SRT / VTT · Private local or edge processing
Prefer uploading a file. You can paste a link to try, but platforms often block automated fetch — switch to upload if it fails. Link fetch is not guaranteed.
Drop video or audio here, or click to browse
MP4, MOV, M4A, MP3, WAV, WebM up to ~30 minutes · No server storage
M4A to Text - Technical Specifications
Last Verified:FAQ
Frequently Asked Questions
What is an M4A file and how is it used?+
M4A (MPEG-4 Audio) is an audio container format developed by Apple, typically encoded using Advanced Audio Coding (AAC) or Apple Lossless Audio Codec (ALAC). It is the default recording format for iPhone Voice Memos, QuickTime audio notes, and many podcast production workflows.
Why is M4A to text strictly an upload-only tool?+
M4A is a personal audio recording standard rather than a public social media video stream. Restricting operations to direct file upload guarantees 100% legal compliance and airtight data privacy: your audio never interacts with third-party social APIs.
Can I transcribe Voice Memos recorded on an iPhone or iPad?+
Yes. Share or export your Voice Memo as an .m4a file to your computer or cloud storage, then drop it into the upload box above to transcribe it immediately.
How long can my M4A recording be?+
The current preview engine smoothly processes M4A recordings up to 30 minutes in length. For multi-hour lectures or conference recordings, splitting the audio into shorter segments guarantees the best performance.
Does transcribing M4A work without an internet connection?+
When using Engine A (In-Browser Whisper), the model loads into your browser WebAssembly environment. Once loaded, speech recognition runs completely offline in your device memory.
Which formats can I export from an M4A audio transcript?+
You can download plain text (.txt) for reading and meeting minutes, SubRip (.srt) for subtitling, and WebVTT (.vtt) for web players, or click Copy Text to paste into your notes app.