Transcribe large audio files without splitting them
Upload recordings up to 2 GB - multi-hour meetings, lectures, conferences, or interviews - and get a complete transcript with speaker labels, timestamps, and an AI summary. No need to split files, no minute caps on the free plan. IronMemo handles the full recording as one seamless document in 30+ languages.
Updated July 22, 2026
- Up to 2 GB
- Multi-hour recordings
- 30+ languages
File size limits: IronMemo vs the market
Most services cap file size or recording length. We take files up to 2 GB - enough for 20+ hours of compressed audio.
| Service | Upload limit |
|---|---|
| IronMemo | 2 GB per file, no duration cap |
| Fireflies.ai | 500 MB audio, 2 GB video (paid only) |
| Otter.ai | 5 GB per file |
| TurboScribe | 5 GB / 10 hours (paid only) |
| Notta | 1 GB audio, up to 5 hours |
Competitor limits verified in July 2026 against official help and pricing pages (guide.fireflies.ai, help.otter.ai, turboscribe.ai, support.notta.ai). Plans change - re-check before you rely on them. Fathom and Granola do not support file upload at all.
How IronMemo handles large files
No splitting, no workarounds - just upload and wait.
Upload your file
Drag and drop any audio or video file up to 2 GB. Compressed formats like MP3 and M4A can hold 20+ hours in that space.
We pick the right model for the language
IronMemo detects the language automatically and routes the audio to a specialized model that scores highest for it - not a one-size-fits-all engine.
Get the full transcript in one document
Speaker labels, timestamps, and an AI summary cover the entire recording. No gaps between chunks, no manual stitching.
Upload vs split-and-stitch
When a service caps uploads at 30 minutes, the workaround is file splitting. Here is what that means in practice.
Splitting the file yourself
- Cut a 3-hour recording into 30-minute chunks
- Upload each chunk separately and wait
- Stitch the transcripts back together by hand
- Speakers reset in every chunk - re-label manually
Uploading the full file to IronMemo
- Upload the full file once - up to 2 GB
- Processing runs in one pass, start to finish
- One document with continuous timestamps
- Speakers are tracked across the entire recording
If your recordings are always under 30 minutes and in one language, a free tool with a time cap works fine. IronMemo earns its place when recordings are long, multilingual, or too important to risk losing context at a cut point.
Built for long recordings
Upload the file as-is - we handle the rest.
2 GB
Maximum file size
The hard limit on every plan - enough for 20+ hours of compressed audio.
20+ hrs
In a single MP3 file
How much compressed MP3 audio fits in a single 2 GB file at 128 kbps.
30+
Supported languages
Each language is matched to the model that transcribes it best.
FAQ - large file transcription
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