I would like a device which can reliably only record my own voice. This would allow one to create a verbal record of what is happening in emergencies, which cou

I would like a device which can reliably only record my own voice. This would allow one to create a verbal record of what is happening in emergencies, which could be very useful if combined with a video record. Also, such a device could simply remain on all the time. Only recording one's own voice would allow continual use of the device in two party recording consent states.