An Opus voice message you want to summarize can go straight to Potok in Telegram, as 1 message. A short digest arrives in reply. Fast speech and several unrelated topics make it vaguer, so keep each message on one subject and open the full transcript when you need exact words.
Transcribe a recording
Your recording goes to @potok_now_bot as a file or a voice message, and the transcript returns to you in Telegram.
Go 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
In short
- RFC 7845 defines the Ogg encapsulation for the Opus codec.
- Opus supports bitrates from 6 kbit/s to 510 kbit/s.
- Telegram sendVoice takes audio in an OGG file encoded with Opus (Telegram sendVoice input).
- Potok accepts .opus files up to 2 GB and reads them without a conversion step.
About the Opus format
| Property | Value |
|---|---|
| Kind | Audio codec, stored in Ogg as .opus |
| File extensions | .opus |
| Media types | audio/ogg |
How to summarize Opus recordings
- Upload the .opus file. Start a chat with @potok_now_bot and upload the Opus file. Each file may be up to 2 GB, and the Upload button in the mini app handles the largest ones.
- Mind this about the format. Telegram sendVoice takes audio in an OGG file encoded with Opus (Telegram sendVoice input).
- Ask for the digest. Use the summary button under the transcript for a short digest, and read it next to the full text before you share it.
- Good to know. Opus supports bitrates from 6 kbit/s to 510 kbit/s.
What a summary looks like
[1] Point: Voice note with ideas for the weekend trip.
[2] Point: Route: drive to the lake and hike to the cabin.
[3] Point: Pack: tent, stove, warm jackets and enough water.
[4] Point: I would like to change the hotel booking to a quieter room.
Points written by us to show the layout. They are not output from a real Opus file.
| Option | What it means |
|---|---|
| Digest | The result message has a summary button for a digest of the text |
| Size limit | Up to 2 GB |
| Save as | TXT, MD, DOCX, PDF, SRT, VTT |
| Speakers | You can turn on speaker labels and timestamps |
| Languages | About 30 languages with good published results and a few more with warnings |
Where Opus files go wrong
| What goes wrong | Effect | What to do |
|---|---|---|
| Forwarding an Opus voice message with several unrelated topics | The summary jumps between topics and loses focus | Record one topic per Opus voice message |
| Speaking very fast into the Opus voice message | Words blur and the summary leaves out key points | Speak at a steady pace when recording |
| Taking the Opus summary as a full record | Small details and exact numbers may be missing | Check the transcript before acting on details |
| Sending several Opus messages in a row and expecting one digest | Each message gets its own separate summary | Record one longer message about a single topic instead |
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
Is Opus supported?
It is: the bot takes .opus files of up to 2 GB and decodes them itself, so you do not need to convert anything 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 Opus format?
In short, the Opus codec in an Ogg encapsulation. RFC 7845 defines the Ogg encapsulation for the Opus codec.
What do the specifications say about Opus?
RFC 7845 defines the Ogg encapsulation for the Opus codec. Opus supports bitrates from 6 kbit/s to 510 kbit/s.
Sources
Every source below was checked by hand on the date given. Sites change, so open the source if the exact wording matters.
- RFC 7845: Ogg encapsulation for the Opus audio codec, IETF · checked
- RFC 6716: Definition of the Opus audio codec, IETF · checked
- Telegram Bot API, Telegram · checked
Try it on your own recording
Open @potok_now_bot in Telegram, attach the recording and wait: the transcript arrives as a message in the same chat.
Go to @potok_now_bot in Telegram