Summarize AAC recordings

By the Potok teamUpdated ~2 min read

To summarize AAC recordings, send the voice note to Potok in Telegram as 1 message, and a short digest arrives in reply. Wind noise hurts the result, and the digest is a pointer, not exact minutes, so keep the AAC file for anything you must quote.

Get the text of your recording

Open @potok_now_bot in Telegram, attach the recording and wait: the transcript arrives as a message in the same chat.

Write to @potok_now_bot in Telegram

Export to TXT, MD, DOCX, PDF, SRT and VTT · files up to 2 GB · about 30 languages · speakers and timestamps on request

Key facts

  • The .aac extension is used for raw AAC bitstream files.
  • ADTS is a self-synchronizing AAC streaming format where each frame has a header followed by AAC data, defined in MPEG-2 Part 7.
  • Android MediaRecorder offers an AAC_ADTS output format (Android MediaRecorder AAC_ADTS).
  • Send .aac files up to 2 GB as they are: Potok decodes them without a separate conversion.

What a AAC file is

PropertyValue
KindAudio codec (raw AAC stream, ADTS)
File extensions.aac, .m4a
Media typesaudio/aac, audio/mp4

How to summarize AAC recordings

  1. Start with the bot. Go to @potok_now_bot in Telegram, then send your .aac recording. The limit is 2 GB per file, and the Upload button of the mini app is the way to send a big one.
  2. Keep the format in mind. Android MediaRecorder offers an AAC_ADTS output format (Android MediaRecorder AAC_ADTS).
  3. Press the summary button. When the transcript arrives, press the summary button under it, then compare names, figures and decisions in the digest with the full text.
  4. Worth knowing. ADTS is a self-synchronizing AAC streaming format where each frame has a header followed by AAC data, defined in MPEG-2 Part 7.

What a summary looks like

Example of a summary

[1] Point: Phone note about renovating the kitchen.

[2] Point: Plan: replace cabinets first, then repaint the walls.

[3] Point: Ask the contractor for a written schedule.

[4] Point: The landlord promised to fix the heating before the first frost.

Points written by us to show the layout. They are not output from a real AAC file.

Potok at a glance
TopicAnswer
AccessThe Telegram bot @potok_now_bot, plus its mini app for big uploads
Labels and timesYou can turn on speaker labels and timestamps
Save asSix formats: TXT, MD, DOCX, PDF, SRT and VTT
Short digestThe result message has a summary button for a digest of the text
TranslationThe transcript is not translated into another language

What to avoid with AAC

Where things go wrong
MistakeWhat happensFix
Sending an AAC note recorded in a windy placeWind noise hides words and the summary misses pointsRecord the AAC note in a quiet spot
Treating the summary like exact meeting minutesVotes and numbers may be left out or shortenedAdd decisions to your own minutes after reading
Joining many AAC notes by renaming filesThe merged file may not play, so no summary is madeSend each AAC note as a separate file
Sending an AAC note where several people speak softlyQuiet voices are missed and the digest leans on one speakerAsk each person to speak close to the microphone

Keep going

Need a converter or a calculator? Open the tools. Unsure about a term? Check the glossary. Apps are on the download page.

Questions and answers

Does Potok accept AAC files?

Yes. The bot accepts .aac files up to 2 GB, so no conversion is needed first.

Does the summary replace the transcript?

No. The summary is a short digest made from the transcript. The full text stays available and is the source to check it against.

What is the AAC format?

In short, A perceptual audio encoding; a raw .aac file is an ADTS stream of self-synchronizing frames. The .aac extension is used for raw AAC bitstream files.

What do the specifications say about AAC?

The .aac extension is used for raw AAC bitstream files. ADTS is a self-synchronizing AAC streaming format where each frame has a header followed by AAC data, defined in MPEG-2 Part 7.

Sources

The dates show when each source was opened. Pages are edited over time; read the original before you rely on a detail.

  1. AAC, Advanced Audio Coding (Library of Congress), Library of Congress · checked
  2. ADTS, Audio Data Transport Stream (Library of Congress), Library of Congress · checked
  3. Android MediaRecorder.OutputFormat, Android Developers · checked

Run your own recording through it

Open @potok_now_bot in Telegram, attach the recording and wait: the transcript arrives as a message in the same chat.

Write to @potok_now_bot in Telegram