2020 Volume Annual58 Issue Abstract Pages 231
Saturated diving is a process in which a high-pressure living room with a pressure almost equal to the target depth is prepared to improve diving efficiency in great depths. Helium gas saturates in the diver's body under high pressure.
With the assistance of Japan Maritime Self-Defense Force, voice recordings of saturation divers during training were acquired and examined to study the impact of high pressure and helium absorption on our stress-evaluation method using voice.
This was analyzed after eliminating the numerous, extraneous training environment noises.
The results demonstrate that the voice evaluation value during training was generally lower compared to normal conditions. A slight value change due to the depth difference during training was also observed, but it was not possible to determine whether the change was due to a pressure difference or a change in mental state.
