Microphone Privacy.
Safety sounds only. No conversation recording. No voice storage. Complete user control.
Listens For Danger, Not Dialogue.
Audio is processed locally to detect high-pitch safety cues. Normal conversation is completely filtered out.
Speech Range
(Ignored)
Whistle / Alarm Range
(Monitored)
Ultrasonic
(Ignored)
Normal Conversation
Completely filtered out by frequency analysis
Safety Alert Detected
High-frequency whistle or alarm pattern recognized
Music & TV
Background noise ignored by detection
You're Always In Control.
Complete privacy control at your fingertips. Mute the microphone anytime through the app.
Microphone Detection
Detects whistles & alarms for safety
Active
Listening for safety tones only
You're always in control.
Stovyn
Microphone
Enabled
Privacy First
No conversation recording
On-device processing only
Toggle anytime
Control from the Stovyn app
Privacy-first Whistle Detection.
Whistle detection only · we analyze sound frequencies on-device and discard audio (no voice recording, no streaming).
Stovyn converts sound into a simple frequency peak (like 3.1 kHz) to trigger alerts. Only the peak value is used · raw audio is never saved or uploaded.
No voice recording
Audio is processed locally and discarded immediately.
No audio uploads
Only a "whistle detected" event (timestamp + peak frequency) is sent.
User-tunable
Choose which sound band to detect in the app (Kettle / Cooker / Custom).
In the app, select: Kettle / Cooker / Custom range — set sensitivity — get alerts.
We detect only the strongest frequency peak in the selected band · not speech content.
Detects whistle tones, not conversations · frequency peaks only.
Privacy FAQ.
Clear answers about how microphone detection works.
No. We do not record, store, or stream audio. The microphone extracts only frequency peaks on-device (e.g., 3.1 kHz) to detect safety sounds like whistles and alarms. Raw audio is discarded immediately after processing.
Privacy by Design
We built Stovyn with privacy as the foundation. Microphone detection uses frequency filtering to ignore normal speech, all processing happens locally on your device, and you maintain complete control.
Read our full privacy policyMicrophone
Safety cue detection (mute anytime)
Processing
100% on-device, zero cloud uploads
User Control
Disable microphone detection anytime
Safety Without Surveillance.
Experience advanced kitchen safety with uncompromising privacy protection.
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