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- Christian L Petersen, Heng Gan, Martin J MacInnis, Guy A Dumont, and J Mark Ansermino.
- Conf Proc IEEE Eng Med Biol Soc. 2013 Jan 1;2013:2874-7.
AbstractAn ultra-low-cost pulse oximeter is presented that interfaces a conventional clinical finger sensor with a mobile phone through the headset jack audio interface. All signal processing is performed using the audio subsystem of the phone. In a preliminary volunteer study in a hypoxia chamber, we compared the oxygen saturation obtained with the audio pulse oximeter against a commercially available (and FDA approved) reference pulse oximeter (Nonin Xpod). Good agreement was found between the outputs of the two devices.
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