app
Automatic microphone profiles — dB Pulse Pro
dB Pulse Pro can automatically apply a microphone profile when a supported earbud or external input route changes. Profile matching is a convenience for handling different input setups, not individual calibration or a promise that every accessory is accurately identified.
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| Question | What to know |
|---|---|
| Plan | Pro automatic matching for supported input routes. |
| Detection | Closest profile based on reported input information. |
| Adjustment | Generic profile offset, not individual microphone certification. |
| After a change | Check route, placement and reference agreement again. |
Confirm which microphone is actually active
Connecting headphones changes more than where you hear playback. Depending on the accessory and route selected by iOS, it can also change which microphone supplies the meter. Before comparing readings, check the active route in the app’s calibration workflow.
A microphone on a cable or earbud may be much closer to clothing or your mouth than the phone was. An external microphone may be directional or positioned elsewhere. Those are changes in the acoustic setup, not simply changes to the app’s interface.
Enable the Pro convenience
In Settings, the calibration section includes Auto-detect mic profile. Automatic matching is a Pro feature. The app listens for input-route changes and chooses the closest supported profile before applying its associated adjustment.
The available profile set includes the built-in iPhone microphone, supported AirPods-style inputs, wired EarPods-style inputs and external microphone categories. Use the app’s displayed route and selected profile to confirm that the result matches your actual connection. Do not assume an accessory’s marketing name guarantees a distinct model-specific calibration.
Know what matching means
The source uses input port type and, for some Bluetooth cases, the human-readable port name to choose a category. This is heuristic matching. Renamed accessories, localized names or a device that reports a generic route can affect the choice.
The applied adjustment is a generic profile offset. It is not a stored laboratory measurement of your particular microphone. Two accessories that fall in the same category can still differ in response and gain. Automatic selection reduces manual switching; it does not establish traceable accuracy.
Recheck your comparison routine
Take a known, steady environmental comparison after changing an accessory. Keep position and weighting consistent, and compare beside a trustworthy meter if you need a meaningful level reference. Avoid clipping microphones to fabric that rubs during the observation.
If your purpose is comparing before and after a room change, keep the same input for both sessions. Otherwise the profile switch and the room change are confounded. Note the input route in your session context so a later reader knows whether the setup stayed the same.
Automatic selection after a route change can replace an earlier adjustment. Recheck the displayed correction rather than assuming a previous reference comparison still applies unchanged.
Use manual calibration thoughtfully
The free calibration controls are useful for understanding and adjusting a specific reference comparison. Pro automatic matching works alongside the broader need to check the measurement chain; it does not remove it. Revisit your offset if the chosen input changes.
Matching one reference condition cannot correct every microphone’s full frequency response. A profile that makes a steady sound agree near one condition may still diverge for low-frequency rumble or very high levels. Do not claim that automatic matching makes an accessory Class 1 or Class 2 equipment.
Choose the feature for convenience, not certification
Automatic profiles are useful when you regularly alternate between a phone and supported accessories and want a more organized starting setup. If you always use the built-in microphone, a consistent placement and reference check may matter more than automatic switching.
For a professional test, choose the required measurement microphone and instrument rather than assuming a compatible route is sufficient. The app does not diagnose hearing or guarantee a safe exposure. The useful outcome of profile matching is a clearer, more consistent workflow whose limits you can explain.
Sources
Phone and browser readings are estimates. For formal decisions, use the specified equipment and procedure; see the accuracy notes.
Try the next check
Noise dose calculator can help with this question. See the matching dB Pulse feature.