AAC file

AAC audio file to show notes in English

AAC audio file to show notes in English: send the file and get the text with the timecodes. One file may be up to 30 minutes on the free plan, no minute limit on Pro.

3 files a day up to 30 minutes, free99+ languagesSpeaker separation and timestamps
In short

A English AAC audio file is read once and comes back as the show notes. The answer keeps the sections Episode summary, Chapters, Quotes and the time of every line, and the free plan gives 3 files a day of up to 30 minutes.

How it works

How to get the file and turn it into show notes

  1. 1

    Open it with the library

    The FFmpeg library of Audacity imports M4A (AAC), AC3 and WMA

  2. 2

    Hand the file over

    The file of the AAC audio file is attached in the widget of this page, and the speech is marked as English; the answer comes back as the show notes.

  3. 3

    Run the instruction of the show notes

    The ready instruction reads the transcript of the AAC audio file as the producer of the episode, and the show notes comes in the sections Episode summary, Chapters, Quotes.

  4. 4

    Mark the language of the speech

    The speech of the AAC audio file is English, one of the 99+ languages the engine reads, and the widget is left on English while the show notes is written.

  5. 5

    Check the file before the upload

    In the FAQ of the FFmpeg library the M4A is written next to the codec it carries: M4A (AAC), AC3 and WMA

The result

What comes back from the engine

  • TXT

    One segment per line, the way a person wrote it down. It is the format to paste into a ticket, a chat or a document.

  • TXT, CSV

    The start and the end time of every segment, and the speakers named separately when you ask for it.

  • SRT, VTT

    SRT and VTT with the time of every line, so the recording can carry its own subtitles.

  • Markdown, DOCX

    The transcript is edited through the API and exported as Markdown for a wiki, or as DOCX for a review.

The facts

What AAC keeps, and what it says about it

Where the file is

The FFmpeg library of Audacity imports M4A (AAC), AC3 and WMA, a much larger range of audio formats than the program reads on its own.

What the file is

The VLC player reads AAC among the audio formats it plays: AAC is MPEG-4 part3 and stands next to MP3 in the list.

What can go wrong

The Telegram Bot API takes an audio file in the .MP3 or .M4A format, and the M4A carries the AAC codec.

What the platform says

In the table of the codecs and the containers of OBS Studio the AAC row names the MP4, MOV, MKV and TS containers.

What the platform says

In the FAQ of the FFmpeg library the M4A is written next to the codec it carries: M4A (AAC), AC3 and WMA.

Length of one file

up to 30 minutes on the free plan, no minute limit on Pro

Free plan

$0: 3 files a day, up to 30 minutes per file, no card

Pro plan

$10 a month when you pay yearly ($120 a year), or $20 a month

The case

What the recording does not give you

The file of the AAC audio file is what the AAC keeps. The FFmpeg library of Audacity imports M4A (AAC), AC3 and WMA, a much larger range of audio formats than the program reads on its own. The engine reads the English speech, and the sections Episode summary, Chapters, Quotes come out of it.

Tips

  • Read the sections of the show notes before you send it on.

  • Mark the language of the speech of the AAC audio file.

  • Take the file of the AAC audio file as soon as you have it.

  • Because of software patents Audacity cannot include the FFmpeg software: the free FFmpeg library of a third party is installed separately.

  • Bots can currently send audio files of up to 50 MB in size, and the limit may be changed in the future.

FAQ

Questions about AAC audio file and show notes

Which problems can come with the AAC audio file?

The Telegram Bot API takes an audio file in the .MP3 or .M4A format, and the M4A carries the AAC codec. The engine does not change the file of the AAC audio file; it reads it as it is and writes the show notes.

What does the AAC say about the AAC audio file?

Because of software patents Audacity cannot include the FFmpeg software: the free FFmpeg library of a third party is installed separately. The engine reads the English speech of the AAC audio file and writes the show notes from that text.

How is the show notes built from the AAC audio file?

The engine reads the English speech and the instruction writes the show notes in the sections Episode summary, Chapters, Quotes; every line comes from the transcript of the AAC audio file.

Is there a limit to the length of the AAC audio file?

One file of the AAC audio file may be up to 30 minutes on the free plan; the free plan gives 3 files a day.

Is a link enough for the AAC audio file?

Bring the file of the AAC audio file to your own disk and upload it here; the engine returns the show notes with the time of every line.

Related pages

The same task on aac audio file to text voice memo to todo ru

The same task on another recording, with the same steps and the same sections.

Podcast episode to show notes

The page of the task: the instruction that is written for it and an example of the answer.

Transcribe audio to text

What the service does with a file: the formats of the export, the limits and the plans.

Sources

  1. M
  2. W
  3. C
    Telegram Bot API (read 2026-10-25)core.telegram.org · checked
  4. O
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Reading: 4 minutesUpdated Transcribsi editorial team

Drop a recording — the text arrives in a minute

Speakers by name, a time on every line, export to TXT, SRT, VTT, CSV and Markdown.

3 files a day up to 30 minutes, free99+ languagesSpeaker separation and timestamps