M4A · iPhone · Mac · Voice recordings
M4A to Text — Automatic M4A Audio Transcription
Transcribe M4A recordings from iPhone, Mac, and digital recorders to text with high accuracy. No installation, no size limit. Free up to 30 min/month.
🎙️ Transcribe for free
Upload your audio or video and get the text in seconds.
30 minutes free per month. No credit card required.
Supported formats: .m4a (iPhone, Mac, digital recorders, up to 5 GB)
How it works
- 01
Locate the M4A file
M4A is the default voice recording format on iPhone (Voice Memos app) and macOS (QuickTime, GarageBand). Digital recorders from Olympus, Sony, and Zoom also use M4A. On iPhone, go to Voice Memos → share via AirDrop, email, or iCloud to get the .m4a file.
- 02
Upload to VoxScriber
Drag the M4A file into the upload area or click to select. Files up to 5 GB are accepted. For long recordings (meetings, interviews, medical consultations), the system processes in chunks automatically — no user action needed.
- 03
Get the text and export
The transcription appears within seconds. For 30 minutes of M4A audio, the result is ready in under 2 minutes. Export in TXT, DOCX, SRT, VTT, PDF, or JSON with one click.
Frequently asked questions
How do I convert M4A to text online?
To convert M4A to text: 1) Go to voxscriber.com. 2) Drag the .m4a file into the upload area. 3) Wait for automatic transcription. 4) Review and export. No need to convert M4A to another format first.
How do I transcribe an iPhone voice recording (M4A)?
On iPhone, open the Voice Memos app, tap the recording, tap the three dots, and "Share." Send via AirDrop or email to your computer. Then drag the .m4a to VoxScriber and wait for automatic transcription.
Is M4A from Mac/GarageBand compatible?
Yes. M4A exported from GarageBand, QuickTime Player (audio recording), Voice Memos (Mac), and Audacity is fully compatible. Quality of 44.1kHz/128kbps or higher ensures maximum transcription accuracy.
How long does it take to transcribe an M4A?
Short files (up to 5 min) are ready in under 30 seconds. For 1 hour of M4A audio, transcription takes about 3-5 minutes. Parallel chunk processing ensures speed even for multi-hour recordings.
Does M4A transcription work for meetings with multiple speakers?
Yes. Automatic diarization identifies and separates speakers. For meetings with 2 to 8 people, the result includes speaker labels: "[Speaker 1]: ...", "[Speaker 2]: ..."
What is the difference between M4A and MP3 for transcription?
M4A uses AAC encoding, which preserves more speech quality than MP3 at the same file size. Both work well for transcription; M4A tends to deliver slightly higher accuracy for voice recordings, especially from iPhone.
Transcribe your M4A now — free, no credit card
Try free — no credit card →30 minutes free per month. No credit card required.