Convert M4A Audio to Text

Turn your M4A voice memos and recordings into accurate, searchable text. Profi PDF handles the typing so you do not have to.

Fast M4A Transcription

Speaker Identification

Export to Word, PDF, SRT

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M4A to Text Converter — Transcribe M4A Audio Files Online | Profi PDF

Upload M4A File. Drag your M4A audio straight into Profi PDF. Voice memos, podcast clips, interviews — we take it all.

AI Does the Work. Our engine listens to every second, picking out words and speakers with scary good accuracy. It wraps up in minutes.

Download & Done. Check the transcript, tweak it if you want, and grab it as a TXT, Word doc, or subtitle file.

あなたの完全な音声・動画ツールキット

書き起こし、変換、抽出 — 音声・動画のすべてを一箇所で処理。

AI書き起こし

話者ラベル、タイムスタンプ、95%以上の精度で音声をテキストに。

フォーマット変換

MP3、WAV、M4A、OGG、FLAC — 任意の音声または動画フォーマットを瞬時に変換。

動画から音声へ

MP4、YouTube、Zoom録音などから音声を抽出。

超高速

ほとんどのファイルは3分以内に処理。待ち時間なし。

登録不要

すぐに開始

100%安全

自動削除

ブラウザベース

インストール不要

このツールを愛用する人々

ポッドキャスター、研究者、マーケター、リモートチームが毎日利用しています。

Feb 12

iPhone voice memos sorted

I record everything on my phone in M4A. Profi PDF just eats them up and spits out perfect text. Saves me hours of re-listening.

Sarah Jenkins

Jan 25

Great for interviews

The speaker separation is legit. I threw in a messy 3-person interview and it actually figured out who was who.

Mike Ross

Feb 2

Fast and cheap

Compared to hiring a human transcriber, this is a no-brainer. 99% accuracy for a fraction of the cost and time.

Elena Rodriguez

824 人が今日ファイルを文字起こしました

読み込み中...

信頼され、認定された業界のリーダー

なぜこの音声・動画ツールを選ぶのか

Voice Memo Friendly

Recorded a thought on your iPhone? Profi PDF is built to handle M4A files perfectly, turning your rambles into readable notes.

Who Said What

Don’t get lost in the conversation. Profi PDF detects different voices and labels them, so you know exactly who is talking.

Timestamps Everywhere

Need to find a specific quote? Every sentence is time-coded. Click the text and jump right to that moment in the audio.

More Than Just M4A

Got MP3s, WAVs, or even video files? Throw them in. Profi PDF is an all-in-one transcription powerhouse.

Subtitle Ready

Need captions? Export as SRT or VTT instantly. Perfect for social clips or making your content accessible.

Private by Design

We don’t keep your audio. Files are encrypted during upload and deleted after processing. Your secrets stay yours.

Voice Memo Friendly

Recorded a thought on your iPhone? Profi PDF is built to handle M4A files perfectly, turning your rambles into readable notes.

Who Said What

Don’t get lost in the conversation. Profi PDF detects different voices and labels them, so you know exactly who is talking.

Timestamps Everywhere

Need to find a specific quote? Every sentence is time-coded. Click the text and jump right to that moment in the audio.

More Than Just M4A

Got MP3s, WAVs, or even video files? Throw them in. Profi PDF is an all-in-one transcription powerhouse.

Subtitle Ready

Need captions? Export as SRT or VTT instantly. Perfect for social clips or making your content accessible.

Private by Design

We don’t keep your audio. Files are encrypted during upload and deleted after processing. Your secrets stay yours.

M4A to Text Online

登録不要。ツールを選んで始めましょう。

Transcribe M4A Now

4.6

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4.5

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4.6

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よくある質問

音声・動画の書き起こしと変換ツールに関する簡単な回答。