M4Aファイルをテキストに書き起こす方法

If you want to transcribe M4A files to text, the process is simpler than it sounds.

You can use AI-powered transcription tools like VOMO, Otter, or Whisper to quickly convert your audio files into accurate, editable text—simply upload your M4A file, choose the desired format (TXT, SRT, or JSON), and let the tool generate the transcript in minutes.

Alternatively, if you are using macOS Monterey or later, you can take advantage of Apple’s built-in Transcribe Audio Shortcut to convert M4A files into text and save them directly to a text file.

Transcribe M4A Audio on macOS Using Apple Shortcuts

If you are using macOS Monterey or later, Apple provides a built-in Shortcut called Transcribe Audio. I successfully used it to convert M4A files into plain text and save the output to a text file.

However, if the original audio contains multiple paragraphs, the transcription tends to ignore the final punctuation of each paragraph, merging everything into a single block of text.

This can make it difficult to preserve the original structure and formatting of the spoken content, requiring extra editing to restore readability.

Use AI Transcription Software to Convert M4A to Text

AI transcription tools are the fastest way to convert M4A files into text. Programs like VOMO or Otter can handle a wide range of audio formats, including M4A, and produce highly accurate results. Some platforms also allow batch uploads, which is ideal if you have multiple files.

Tip: For better accuracy, ensure your audio is clear and free of background noise. This method is perfect for journalists, students, and content creators who need reliable audio to text conversion.

Use Video to Text Features if M4A Comes from Video

If your M4A file originates from a video, such as a lecture or webinar, you can extract the audio and use video to text transcription tools. Platforms like VOMO or Descript allow you to upload the source video or extracted M4A file and get an editable transcript. This method ensures context and speaker identification are preserved, which is particularly useful for meetings, podcasts, or educational content.

Best AI Tools for M4A Transcription

Here are some top AI-powered transcription tools that make converting M4A files to text seamless:

• VOMO– Handles both audio and video transcription with high accuracy. Perfect for content creators and professionals.
• Otter.ai– Offers real-time transcription and collaborative note-taking features.
• Whisper– Open-source, highly flexible, and supports multiple languages.

These tools can convert audio to text efficiently, saving you hours of manual transcription work.

Tips for Accurate M4A Transcription

• Check audio quality:Clear recordings yield better transcripts.
• Use noise reduction:Remove background noise before uploading.
• Edit afterward:AI transcription is fast but may need minor corrections.

By following these steps, transcribing M4A files to text becomes quick, reliable, and suitable for professional or personal use.