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Measure fetal heart rate by using your phone’s microphone!
With Babybeat Tracker you can measure fetal heart rate by using your phone’s microphone. How is it possible? It works like a stethoscope. With stethoscope you can hear the baby’s heart beat at about 18-20 weeks. During measurement heartbeats are drawn. After the heart rate is measured, corresponding simulated fetal doppler sound can be listened. Measured heart rate can be saved to results. Graph of results can be viewed.
Heart rate can be measured in two ways. The first way is to position the microphone like a doppler device (on your belly). Quiet environment is needed. This measurement way can be used from about week 27, but every pregnancy is individual. Fetal position also affects to how easily heart rate can be measured.
The second way is good if you own a home doppler device, but don’t know fetal heart rate. Pulse can be measured from pre-recorded doppler audio or directly from home doppler device’s speaker.
Important note concerning the model of the phone when measuring directly on belly:
So far all WP 7.8 reviews have been five star reviews whereas users have reported problems with all the WP8 phones containing several microphones (Lumia 520, 620, 720, 820, 920 and HTC 8X). However, heartbeat can be detected if heart rate is measured with the top microphone. Try Babybeat Tracker with your phone and give feedback. Trial version contains full functionality.
– Fix to the message “Heart rate is too low. Frecuente range is 120 – 160 bpm.” which was shown erroneously even when the heart rate is between valid range.
– Special instructions for Lumia 1020 users
– Clarified new tips
– Several tips to advice what went wrong if measurement fails
– Special instructions for HTC 8X users
– Added AdDuplex control (Trial version)
+ Calibration to adjust microphone sensitivity according to the used phone
+ Visible heartbeats can be monitored
+ Simulated fetal doppler sound is generated after the heart rate is measured (it is not actual recording)
+ Live tile shows the last measurement
+ Airplane mode detection and turning on
Babybeat Tracker is not intended as a replacement for medical advice. For any medical questions, consult your doctor or midwife.