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Transcribe M4A to Text

Apple-friendly audio container common on iPhone and macOS.

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What is M4A?

M4A is an audio-only MP4 container, often encoded with AAC or ALAC. It is the default for iPhone Voice Memos.

Transcription quick facts

  • Common use: iPhone voice memos
  • Quality tip: Record in a quiet room
  • Watch out for: Phone mics pick up room echo

Best use cases

  • iPhone voice memos
  • Mobile interviews and notes
  • Lecture recordings from phones

Common pitfalls

  • Phone mics pick up room echo
  • Automatic gain can cause volume swings
  • Files may have generic names if you forget to label them

Tips for higher accuracy

  • Record in a quiet room
  • Keep the phone close to the speaker
  • Use lossless ALAC when available for higher quality

Sample M4A transcript

Interviewer: Can you summarize the finding? Participant: We saw a 12% lift after week two. Interviewer: What changed in the flow? Participant: We removed one step from signup. Interviewer: Anything else notable? Participant: The drop-off moved to the pricing page.

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