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Β·5 minprivacytranscriptiontechnology

On-Device vs Cloud Transcription: What You Should Know

When you speak into a transcription app, where does your voice go? This is a question most people never ask β€” but it matters more than you might think.

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Your voice is among the most personal data you produce. Where it gets processed determines who has access to your most private conversations.

Cloud Transcription: The Standard Approach

Most transcription services work by sending your audio to remote servers. Your voice is uploaded, processed by large models in data centers, and the text is sent back. This approach offers high accuracy and access to powerful models, but it comes with trade-offs.

Cloud Transcription Flow
You speak
Audio uploaded ───▢ Internet ───▢ Remote Server
Processed by
large models
Text returned ◀─── Internet ◀─── Data Center
⚠ Audio may be stored, used for training,
or accessed by third parties```

Your audio travels across the internet. It may be stored on servers you don't control. In some cases, it may be used to train future models. For meetings with sensitive business decisions, medical conversations, or legal discussions, this creates real risk.

On-Device Transcription: A Different Model

On-device transcription processes your voice locally β€” on the hardware you own. The audio never leaves your phone, tablet, or laptop. On-device speech models can run efficiently on modern processors.

On-Device Transcription Flow
You speak
Microphone ───▢ Speech Engine ───▢ Text Output
(on device) (on device) (on device)
βœ” No internet needed
βœ” Audio never leaves device
βœ” Works offline, anywhere```
βœ— Cloud Transcription
βœ—Audio sent to remote servers
βœ—May be stored or used for training
βœ—Requires internet connection
βœ—Processing in data centers
βœ—Privacy depends on provider policies
βœ“ On-Device Transcription
βœ“Audio stays on your hardware
βœ“Never stored externally
βœ“Works completely offline
βœ“Processing on local chip
βœ“Privacy is absolute by design

What dijin Does Differently

dijin uses on-device speech recognition. Your audio is processed locally and never uploaded to any server. Only the resulting text transcripts can optionally be synced β€” and even that is encrypted in transit.

On-device speech
Engine
100% On-Device
Processing
Zero audio
Network Egress
99 supported
Languages

Beyond privacy, on-device processing means dijin works offline. No Wi-Fi in the conference room? No problem. Recording in a basement? Still works. The transcription happens wherever you are.

Making Your Choice

FactorCloudOn-Device (dijin)
PrivacyAudio sent to serversAudio never leaves device
OfflineRequires internetWorks anywhere
LatencyNetwork round-tripInstant local processing
AccuracyHigh (large models)High (on-device speech engine)
StorageNone local~1.5 GB model size
Sensitive useRisk of exposureZero exposure

The right approach depends on your needs. If you handle sensitive conversations β€” business meetings, medical notes, legal interviews β€” on-device transcription provides a level of protection that cloud services fundamentally cannot match.

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Privacy is not a feature. It is an architecture decision.

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On-Device vs Cloud Transcription: What You Should Know