A medical system comprising a first medical apparatus and a second medical apparatus, the medical system comprising: a first output state detecting section provided for the first medical apparatus, the first output state detecting section including a first error detecting section detecting an error of the first medical apparatus and detecting a first output state about a first output; a first sound outputting section provided for the first medical apparatus, the first sound outputting section outputting a first sound corresponding to the first output state detected by the first output state detecting section; a first output volume information transmitting section provided for the first medical apparatus, the first output volume information transmitting section transmitting first output volume information about the first sound to the second medical apparatus; a first error transmitting section provided for the first medical apparatus, the first error transmitting section transmitting a first error signal based on a detection by the first error detecting section; a second output state detecting section provided for the second medical apparatus, the second output state detecting section detecting a second output state about a second output; a second sound outputting section provided for the second medical apparatus, the second sound outputting section outputting a second sound corresponding to the second output state detected by the second output state detecting section; a first output volume information receiving section provided for the second medical apparatus, the first output volume information receiving section receiving the first output volume information and the first error signal; a first sound output controlling section setting a reference volume of the second sound to be outputted at the second sound output and controlling an output of the second sound to be outputted from the second sound outputting section, based on the first output volume information, in accordance with the second output state detected by the second output state detecting section; and a first output volume adjusting section provided for the first sound output controlling section, the first output volume adjusting section making a setting for lowering the reference volume of the second sound on the basis of the first error signal. a first output state detecting section provided for the first medical apparatus, the first output state detecting section including a first error detecting section detecting an error of the first medical apparatus and detecting a first output state about a first output; a first sound outputting section provided for the first medical apparatus, the first sound outputting section outputting a first sound corresponding to the first output state detected by the first output state detecting section; a first output volume information transmitting section provided for the first medical apparatus, the first output volume information transmitting section transmitting first output volume information about the first sound to the second medical apparatus; a first error transmitting section provided for the first medical apparatus, the first error transmitting section transmitting a first error signal based on a detection by the first error detecting section; a second output state detecting section provided for the second medical apparatus, the second output state detecting section detecting a second output state about a second output; a second sound outputting section provided for the second medical apparatus, the second sound outputting section outputting a second sound corresponding to the second output state detected by the second output state detecting section; a first output volume information receiving section provided for the second medical apparatus, the first output volume information receiving section receiving the first output volume information and the first error signal; a first sound output controlling section setting a reference volume of the second sound to be outputted at the second sound output and controlling an output of the second sound to be outputted from the second sound outputting section, based on the first output volume information, in accordance with the second output state detected by the second output state detecting section; and a first output volume adjusting section provided for the first sound output controlling section, the first output volume adjusting section making a setting for lowering the reference volume of the second sound on the basis of the first error signal.