MP3 to Text
For podcasts, voice notes, and interviews
MP3 is a common format for podcasts and voice recordings. Drop your episode, voice note, or downloaded interview and get a transcript with timestamps, AI summary, and clean exports for show notes.
Drop your file here
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MP3 · MP4 · WAV · M4A · OGG · WEBM · FLAC · Max 25MB · Max 30 min
How it works
- 1
Drop your file
Upload from your device or drag and drop. Any common audio or video format.
- 2
Whisper transcribes the audio
Whisper large-v3 runs on our backend with automatic punctuation and per-segment timestamps.
- 3
Edit, export, share
Review the transcript, summarize with AI, translate to 50+ languages, and export as TXT, DOCX, PDF, or SRT.
Cleaner per-line layout with timestamps. Best for reading.
Why Mictoo for MP3 transcription
Built for podcasts and voice
MP3 is what podcast networks distribute and voice apps export. Tuned for speech content with timestamps ready for show notes and captions.
Common MP3 settings accepted
Constant or variable bitrate, mono or stereo. Clear speech matters most; very low bitrates and audible compression artifacts can reduce accuracy.
AI summary for show notes
A summary appears alongside the transcript automatically. Solid first draft for episode notes, descriptions, and SEO-friendly recaps.
SRT, VTT, and 50+ languages
Export SRT or VTT for the YouTube video version of the episode. Translate to Spanish, French, German, and 45+ other languages in one click.
When MP3 to text is the right fit
Podcast show notes
You bounced the episode, uploaded to your host. Drop the same MP3 here for the transcript and AI summary that become the show notes.
Podcast back-catalog
Years of episodes already published without transcripts. Process them one by one to backfill the archive and make every episode searchable.
Voice memo to document
Voice notes recorded on your phone (many apps export MP3). Turn rambling ideas into searchable, editable text for your notes app.
Downloaded interviews
Podcast interview you want to quote in an article, conference talk MP3 you want to reference, downloaded lecture you want to study.
Audiobook chapters
Audiobook MP3 chapter you want as printed text for note-taking. Large audiobook files often exceed 60 MB and need splitting first.
YouTube-to-MP3 audio
YouTube audio extractors often output MP3 for compatibility. Drop the extracted file for a clean transcript with timestamps.
What matters in an MP3
MP3 settings affect file size and can affect intelligibility at the extremes. These details help you decide whether to upload the file as-is or make a smaller speech copy first.
Bitrate and clarity
Speech at a moderate bitrate is usually suitable. Extremely low bitrate, clipping, or strong artifacts can hide consonants and names.
CBR and VBR
Both constant-bitrate and variable-bitrate MP3 files can be uploaded; timestamps follow the decoded audio timeline.
ID3 tags stay separate
Artist, title, artwork, and chapter metadata are not inserted into the transcript. Keep that metadata in your publishing system.
Long episodes
If an episode exceeds the upload limit, export a mono speech copy at a lower bitrate or split it at a natural break.
Frequently asked questions
Will Mictoo transcribe any MP3 file?
Mictoo accepts common MP3 files with constant or variable bitrate, mono or stereo audio. Damaged files, unsupported variants, or recordings with severe compression artifacts may need re-exporting. The limit is 60 MB when signed in and 25 MB anonymously.
Does the MP3 bitrate affect transcription quality?
Recording clarity matters more than a high bitrate, but bitrate is not irrelevant. A clean voice recording at a moderate bitrate is usually suitable; aggressive compression, clipping, or very low bitrate can remove speech detail and reduce accuracy.
My podcast MP3 is over 60 MB. What now?
Create a smaller mono speech copy with ffmpeg: ffmpeg -i podcast.mp3 -b:a 64k -ac 1 output.mp3. Check the result for audible artifacts before uploading, or split the episode at a natural break.
Can I get an AI summary of the episode?
Yes. The AI summary appears alongside the transcript automatically after transcription finishes. It is a solid first draft for podcast show notes, episode descriptions, and SEO-friendly recaps.
Can I download SRT subtitles for the YouTube version?
Yes. Export as SRT or VTT after transcription. Both formats include timestamps aligned to the original MP3 timeline. Drop into your YouTube upload or video editor for captions.
Does Mictoo transcribe non-English MP3 files?
Yes. Whisper large-v3 supports 50+ languages with auto-detection. For short MP3s or non-English content, set the language explicitly in the dropdown for cleaner first-pass detection.
Can I translate the transcript to another language?
Yes. After transcription finishes, pick a target language and click Translate. The translation is generated by GPT-4o-mini and appears alongside the original transcript.
Will my MP3 file be saved on your servers?
No. The MP3 streams to the transcription provider, gets processed once, and is dropped from memory. We never write the audio to disk. The text transcript is only stored if you sign in and choose to add it to your history.
Will ID3 metadata (artist, title, album) show up in the transcript?
No. The transcript is plain text without MP3 metadata. ID3 tags are ignored during transcription. If you need the transcript matched with episode metadata, keep that mapping in your own archive system.
How long does an MP3 transcription take?
A 30-minute podcast MP3 typically finishes in 30-50 seconds end to end. Larger files near the upload cap take 60-90 seconds. Upload speed is often the longer step of the process.