Audacity opens an M4A file with the FFmpeg library: it allows the program to import and export a much larger range of audio formats, including M4A (AAC), AC3 and WMA.
M4A file
M4A audio file to show notes in Russian
M4A audio file to show notes in Russian: 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
With the M4A audio file the engine writes the show notes: the transcript first, then the sections Episode summary, Chapters, Quotes. The speech is in Russian, the free plan gives 3 files a day, and one file is up to 30 minutes.
How to get the file and turn it into show notes
- 1
Open it in an audio program
The FFmpeg library of Audacity imports a much larger range of audio formats, including AC3, M4A, MP4 and WMA, so an M4A of a phone is opened with it
- 2
Send the recording to the bot
The engine takes the M4A audio file from the widget of the page; the speech is in Russian, and the show notes comes back with the timecodes.
- 3
Turn the text into the show notes
The instruction of the show notes is written for this task already: it reads the text of the M4A audio file and asks for Episode summary, Chapters, Quotes, and it keeps every claim to the transcript.
- 4
Set the language of the speech
The speech of the M4A audio file is Russian, one of the 99+ languages the engine reads, and the widget is left on Russian while the show notes is written.
- 5
Check the file before the upload
A voice message of the Telegram Bot API is an .OGG file encoded with OPUS, an .MP3 file or an .M4A file
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.
What M4A keeps, and what it says about it
The Telegram Bot API takes an audio file only in the .MP3 or .M4A format, and it sends a voice message in the .OGG file encoded with OPUS, .MP3 or .M4A format.
Google Drive keeps the M4A among the files it stores: any file type can be stored in Drive, and the list of the audio formats it previews names MP3, MPEG, WAV, .ogg and .opus.
In the FAQ of the FFmpeg library of Audacity the M4A is written next to the codec it carries: M4A (AAC), AC3 and WMA.
A voice message of the Telegram Bot API is an .OGG file encoded with OPUS, an .MP3 file or an .M4A file.
up to 30 minutes on the free plan, no minute limit on Pro
$0: 3 files a day, up to 30 minutes per file, no card
$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 M4A audio file is what the M4A keeps. The Telegram Bot API takes an audio file only in the .MP3 or .M4A format, and it sends a voice message in the .OGG file encoded with OPUS, .MP3 or .M4A format. The engine reads the Russian speech, and the sections Episode summary, Chapters, Quotes come out of it.
Tips
A name that was never said in the M4A audio file stays out of the show notes.
Mark the language of the speech of the M4A audio file.
Rename the file of the M4A audio file before you send it.
Bots can currently send audio files of up to 50 MB in size, and the limit may be changed in the future.
Questions about M4A audio file and show notes
Which problems can come with the M4A audio file?
Audacity opens an M4A file with the FFmpeg library: it allows the program to import and export a much larger range of audio formats, including M4A (AAC), AC3 and WMA. The engine does not change the file of the M4A audio file; it reads it as it is and writes the show notes.
What does the M4A say about the M4A audio file?
Bots can currently send audio files of up to 50 MB in size, and the limit may be changed in the future. The engine reads the Russian speech of the M4A audio file and writes the show notes from that text.
Who reads the show notes after the M4A audio file is sent?
the producer of the episode. The transcript of the M4A audio file is read first, and the show notes comes out of it in the sections Episode summary, Chapters, Quotes.
Is there a limit to the length of the M4A audio file?
One file of the M4A 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 M4A audio file?
Bring the file of the M4A 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 macos screen recording customer call to ticket enThe same task on another recording, with the same steps and the same sections.
- Podcast episode to show notesThe page of the task: the instruction that is written for it and an example of the answer.
- Transcribe audio to textWhat the service does with a file: the formats of the export, the limits and the plans.
Sources
- MAudacity manual: FFmpeg Import/Export Library (read 2026-10-25)manual.audacityteam.org · checked
- CTelegram Bot API (read 2026-10-25)core.telegram.org · checked
- SGoogle Drive Help: Files you can store in Google Drive (read 2026-10-25)support.google.com · checked
- TTranscription service page (read 2026-10-25)transcrib.si · checked
- TPricing page (read 2026-10-25)transcrib.si · checked
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