Keep meeting audio when you want to check a quote, hear the tone behind an answer, or revisit a detail the transcript missed. For everyday follow-ups, a reviewed note is often quicker to use than a full recording. Keeping both gives you a working record and a source to return to. Set a retention period that matches your purpose and any applicable requirements.
Why keep audio after a transcript exists?
Audio is the closest available source for checking what was said. It can resolve a number, name, tone, interruption, or speaker-label error that the transcript missed. Journalists, researchers, media producers, accessibility teams, and people creating a formal record may need replay. In those cases, deleting the source immediately can remove the only practical correction path.
Audio also carries information that plain text does not: pauses, emphasis, overlapping speech, pronunciation, and environmental context. If those qualities are part of the job, a transcript is a derivative, not a replacement. The retention policy should protect the source for a stated period and control who can play, copy, export, or share it.
The mistake is retaining audio indefinitely merely because storage is available. A useful source can become an unmanaged archive when its purpose, owner, review date, and deletion condition are undefined.
Why delete raw audio and keep the note?
Many work conversations are captured for one narrow outcome: remember the decision, task, rationale, or customer need. Once a reviewed note serves that outcome, the raw recording may add little daily value while remaining a more sensitive and space-intensive artifact.
The U.S. Federal Trade Commission describes data minimization as limiting collection and retention and disposing of information when it is no longer needed. NIST's Privacy Framework treats disposal as part of the complete data lifecycle, alongside collection, use, sharing, and retention. Neither source says every recording should be deleted immediately. They support making the retention decision explicit rather than accidental.
Deleting audio can reduce one exposure surface, but the transcript can still contain sensitive personal or business information. “No audio archive” is not the same as “no privacy risk.” Notes still need access controls, backups, deletion rules, and careful third-party disclosure.
What does deletion actually mean in a product workflow?
“Deleted” can describe several different events. A recording may disappear from the main interface but remain in a recently deleted folder, backup, synchronized device, export, server copy, or downstream integration. Apple, for example, documents that Voice Memos recordings normally move to Recently Deleted and remain there for 30 days by default, with a setting that changes the period.
A serious retention review asks about each layer separately:
- raw audio on the capture device;
- audio transferred to a phone or computer;
- cloud upload or temporary processing copy;
- transcript and speaker labels;
- summary, decisions, and action items;
- exports, backups, integrations, and AI prompts;
- deleted-item recovery windows and provider backups.
A product can delete one layer while retaining another. Granola's official documentation, for example, describes an automatic transcript-deletion option. That is evidence that retention controls can be product-specific and configurable; it is not evidence that every user wants the same lifecycle.
Keep the original audio with OneMira C1
C1 lets you stay with the conversation and keep a copy to return to. In OneMira Desktop Settings, choose to retain the original recording as a stereo WAV file. Pair it with speaker-labeled transcripts and editable local Markdown notes, so you can check a quote without making audio your everyday filing system.
The included local AI can create meeting notes and mind maps on your Mac or PC after the required software and model downloads. No OneMira account or subscription is needed for that workflow. You can choose a model service or compatible external agent when you want to use your existing tools.
OneMira does not upload C1 audio to a shared OneMira cloud workspace. If the resulting text is later sent to ChatGPT, Claude, Cursor, or another third-party service, that provider's data path and terms apply. Local transcription and third-party reasoning are separate decisions.
How can you decide what to retain?
| Question | Keep audio longer when… | Delete sooner when… |
|---|---|---|
| Verification | Exact wording or speaker identity may change an outcome | A reviewed note is sufficient for the job |
| Production | The audio itself will be edited, published, or analyzed | Only decisions and actions are needed |
| Policy | A defined requirement mandates retention | A minimization policy sets a short purpose-bound period |
| Risk | Deletion would destroy a necessary source record | Indefinite access would create unnecessary exposure |
| Operations | Ownership, encryption, access, and deletion are managed | Nobody owns the growing archive |
What should a practical retention policy contain?
- Purpose: why the conversation is captured.
- Scope: which meetings qualify and which never should.
- Notice and consent: how affected people are informed.
- Layers: separate rules for audio, transcript, summary, and export.
- Owner: who reviews access, corrections, and deletion.
- Period: a specific event or duration, not “until storage fills.”
- Exceptions: litigation hold, incident investigation, or regulated records.
- Verification: evidence that deletion actually occurred at each relevant layer.
Before choosing hardware, compare the complete path in Cloud vs. Local AI Voice Recorders. For the durable note layer, read Should AI Meeting Notes Live in Markdown or an App?.
Useful notes, with the recording when you need it
Keep an editable note for everyday work and the recording for details you want to revisit. OneMira C1 gives you that choice in Settings. Explore C1 and see current purchase options.
Sources and further reading
- NIST Privacy Framework: getting started — official lifecycle framing from data collection through disposal.
- FTC: data minimization and retention guidance — official explanation of purpose-bound collection and retention risk.
- Apple: edit or delete a Voice Memos recording — official behavior for Recently Deleted and configurable deletion timing.
- Granola: transcript auto-deletion — an official example of product-specific retention controls.
- OneMira C1 specifications — current approved storage, local-processing, and deletion behavior.